437 Commits

Author	SHA1	Message	Date
mstarzinger@chromium.org	bd90e71b01	Fix ugly typo in HValue::UpdateRepresentation. ... R=jkummerow@chromium.org TEST=mjsunit/math-min-max --extra-flags="--gc-interval=500" Review URL: https://codereview.chromium.org/17580019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-24 14:34:07 +00:00
jkummerow@chromium.org	cbc8ed7110	HBoundsCheck shouldn't ignore Tagged input representations unconditionally ... BUG=v8:2740 R=yangguo@chromium.org Review URL: https://codereview.chromium.org/16917003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-21 12:50:02 +00:00
rossberg@chromium.org	0977c60984	Use AST's type field and merge types for unary, binary & compare ICs ... R=jkummerow@chromium.org BUG= Review URL: https://codereview.chromium.org/17468003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-21 11:10:06 +00:00
yangguo@chromium.org	b7b92bd9ac	Short-circuit embedded cons strings. ... R=mstarzinger@chromium.org BUG= Review URL: https://codereview.chromium.org/17418003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-21 09:24:30 +00:00
verwaest@chromium.org	917ac7d413	Improve range analysis for smi phi ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/17498002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-20 14:11:52 +00:00
olivf@chromium.org	29d3461529	Let NaN flow as double into HBranch + some minor improvements ... BUG= R=verwaest@chromium.org Review URL: https://codereview.chromium.org/17082003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-20 13:51:03 +00:00
verwaest@chromium.org	4922e3d206	Flexible representation for BuildIncrement, but CannotBeTagged. ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/17028017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-20 13:22:46 +00:00
mstarzinger@chromium.org	ea87d08557	Revert r14930 and r14935 temporarily. ... This is a temporary revert to track down a potential perf regression introduced in r14930. The following two changes were reverted: - "Deprecate HAllocateObject in favor of HAllocate." - "Added pretenuring support for call new." R=danno@chromium.org BUG=chromium:247504 Review URL: https://codereview.chromium.org/17491002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-20 10:48:14 +00:00
palfia@homejinni.com	93609033e1	MIPS: Optimise Math.floor(x/y) to use integer division for MIPS. ... Use div instruction if some divisors do not have magic number. Based on commit r11427 (318a9598). This commit also ports commit r15161 (554d45c1). BUG= Review URL: https://codereview.chromium.org/16951016 Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15181 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-17 15:06:41 +00:00
jkummerow@chromium.org	681cfe9cad	Fix MathFloorOfDiv optimization on non-SDIV ARM ... R=verwaest@chromium.org Review URL: https://codereview.chromium.org/17069006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 18:15:49 +00:00
verwaest@chromium.org	328aeb14fb	Revert "Improved range analysis for bitwise operations." ... This reverts commit r15170 R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/17093005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 17:25:03 +00:00
verwaest@chromium.org	98167ed0a8	Improved range analysis for bitwise operations. ... R=fschneider@chromium.org, verwaest@chromium.org Review URL: https://chromiumcodereview.appspot.com/9156001 Patch from Stephen Adams <sra@google.com>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15170 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 16:55:34 +00:00
jkummerow@chromium.org	fb1057ad5d	Fix MathFloorOfDiv canonicalization ASSERT failures ... - remove outdated ASSERT about instruction type - add inserted HChanges to the graph R=danno@chromium.org Review URL: https://codereview.chromium.org/17094005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15166 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 16:27:52 +00:00
jkummerow@chromium.org	de71923b20	Make MathFloorOfDiv optimization trigger more often ... BUG=v8:2205 R=yangguo@chromium.org Review URL: https://codereview.chromium.org/16973002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 14:33:15 +00:00
verwaest@chromium.org	7cebf3f684	When HBranch sees Smi, it sees Smi. ... R=mvstanton@chromium.org Review URL: https://chromiumcodereview.appspot.com/17064006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 14:23:05 +00:00
verwaest@chromium.org	41c63d8899	Only infer int32 in HBoundsCheck if input is double or int32. ... R=jkummerow@chromium.org, mmassi@chromium.org Review URL: https://chromiumcodereview.appspot.com/17057004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15156 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 14:14:07 +00:00
verwaest@chromium.org	84759d7e6e	Cleanup RepresentationFromUseRequirements, move it to HValue and use it where relevant ... BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/17005004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-14 14:13:48 +00:00
jkummerow@chromium.org	9447014780	Skip some conditional deopts for Div/Mul when all uses are truncating. ... - set "can be minus zero" flag properly so minus-zero checks are skipped - skip "integer result?" check in division code when uses are truncating - drive-by cleanup: consolidated computation of kCanOverflow flag for Add/Sub into range inference phase BUG=v8:2132 R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/16741002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-11 11:43:57 +00:00
jkummerow@chromium.org	57632e208a	Increase sanity of integer division handling on ARM ... - In the INT32 BinaryOpStub, fix type feedback collection for DIV, bringing it in line with other platforms. - In Lithium codegen, emit proper inlined code, don't call the stub. - Drive-by fix: assert appropriate CpuFeaturesScope for SDIV. R=ulan@chromium.org Review URL: https://codereview.chromium.org/16082008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-11 10:47:44 +00:00
verwaest@chromium.org	8afeaabe57	Allow boundscheck elimination to work on Smi keys. ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16035016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-07 11:00:39 +00:00
verwaest@chromium.org	a3dccd15b0	Don't ignore the actual input representation in UnaryMathOperations ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16035014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14997 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-07 09:11:33 +00:00
verwaest@chromium.org	cb3645fee9	Infer the range of Math.abs ... R=jkummerow@chromium.org, svenpanne@chromium.org Review URL: https://chromiumcodereview.appspot.com/16268009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-07 09:07:53 +00:00
verwaest@chromium.org	8bd4199fdd	Don't force representations in the loop builder. ... Additionally, infer None-typed CompareIDAndBranch to Smi+actual input. R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16365004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-05 17:24:14 +00:00
verwaest@chromium.org	95cd146359	Fix win build ... BUG= R=hpayer@chromium.org Review URL: https://chromiumcodereview.appspot.com/15934019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 17:15:32 +00:00
jkummerow@chromium.org	20cedf9a4b	Liveness analysis for environment slots in Hydrogen ... R=titzer@chromium.org Review URL: https://codereview.chromium.org/15533004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14938 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 16:41:24 +00:00
verwaest@chromium.org	00addf5adc	Replace log2 with MostSignificantBit ... R=ulan@chromium.org Review URL: https://chromiumcodereview.appspot.com/15994015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 15:39:56 +00:00
verwaest@chromium.org	277ec5d7b2	Infer the range of XOR as limited by the highest possible changed bit. ... R=ulan@chromium.org Review URL: https://chromiumcodereview.appspot.com/16361003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 12:26:39 +00:00
mstarzinger@chromium.org	f8db2414f2	Deprecate FACTORY helper macro. ... This removes the FACTORY helper macro to avoid accidental TLS access when using the factory. Most internal code has access to the Isolate by now whereas tests which are not performance critical still heavily use TLS access through explicit Isolate::Current() calls. R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/16337005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14931 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 10:30:05 +00:00
mstarzinger@chromium.org	d7975dfdab	Deprecate HAllocateObject in favor of HAllocate. ... This models the instantiation of an implicit receiver for CallNew nodes in hydrogen using HAllocate together with generic stores instead of one specialized HAllocateObject instruction, hence creating a single choking point for inlined allocation in optimized code. R=hpayer@chromium.org Review URL: https://codereview.chromium.org/15714005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 08:28:33 +00:00
svenpanne@chromium.org	b9e025a8dc	Collect type feedback for power-of-2 right operands in BinaryOps. ... Improved --trace-ic output for unary/binary ops a bit on the way. Moved int32_t/uint32_t conversion helpers around. R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/15735005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-04 07:49:45 +00:00
verwaest@chromium.org	179ac2cd0c	Improve smi support in crankshaft ... - Recover smi in phis if inputs are smi-typed - Don't record smi-typed values as pointers BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16240003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-06-03 16:57:36 +00:00
verwaest@chromium.org	1a4a904bef	Replace DeoptimizeOnUndefined with whitelisting AllowUndefinedAsNan ... R=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/15952007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-30 09:11:06 +00:00
svenpanne@chromium.org	7bfe1436d3	Improve range analysis for modulo operations. ... R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/15952004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-29 12:42:04 +00:00
verwaest@chromium.org	7d32e7451f	Don't explicitly pass requested representations to constants; implement ConstantS ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/15932011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-29 10:47:55 +00:00
verwaest@chromium.org	8276673a73	Only allow non-double if the observed representations are int32. ... R=mvstanton@chromium.org Review URL: https://chromiumcodereview.appspot.com/15988005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-28 13:28:59 +00:00
verwaest@chromium.org	cf9b1170d1	Support Smi in CompareIDAndBranch ... BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16134003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-28 09:24:39 +00:00
verwaest@chromium.org	f98ee1a223	Tag smi-constants as smi. ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16010004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-28 08:00:42 +00:00
verwaest@chromium.org	aa2444269b	Fix the hole loading optimization. ... - Holes are only ever loaded as double or tagged. - Change to tagged has to deoptimize on undefined (no implicit conversions from double the hole NaN -> tagged undefined). BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16099006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14829 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-27 17:33:14 +00:00
verwaest@chromium.org	a64b7f926f	Remove HCheckSmi, LCheckSmi and rename LCheckSmiAndReturn to LCheckSmi. ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/15841007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-27 09:58:46 +00:00
verwaest@chromium.org	3cb8f95c91	Tag smi-constants as smi. This also fixes code that copies holes into arrays. ... BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/15861009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14814 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-27 08:43:58 +00:00
verwaest@chromium.org	2a28f53b18	Fix hole handling, and ensure smi representation is handled properly ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/16013003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14807 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-24 13:40:02 +00:00
verwaest@chromium.org	c417df74f4	Update representation-from-uses to support smi. ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/15692004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-24 12:29:37 +00:00
verwaest@chromium.org	c9a22a3c8d	Replace tagged keys for fast access by smi, and use smi in boundscheck. ... BUG= R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/15763004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-24 08:52:35 +00:00
titzer@chromium.org	94b4240f5c	Introduce ObjectAccess, which is used by LoadNamedField and StoreNamedField to denote what parts of an object are referred to by a given load or store. Refactor HGraphBuilder to use ObjectAccess, which removes the need to manually set GVN flags and simplifies the code as well. ... Review URL: https://codereview.chromium.org/14284010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-24 08:38:21 +00:00
jkummerow@chromium.org	f691f48c14	Avoid creating duplicate entries for a value when merging HSimulates ... R=yangguo@chromium.org Review URL: https://codereview.chromium.org/15660003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14766 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-23 09:17:01 +00:00
verwaest@chromium.org	308e69755b	Implement HChange support for Smis and use it in Load/StoreNameField ... BUG= R=verwaest@chromium.org Review URL: https://chromiumcodereview.appspot.com/15303004 Patch from Daniel Clifford <danno@chromium.org>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14765 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-23 08:32:07 +00:00
titzer@chromium.org	5746d38351	Fix code gen bug on arm and mips; SeqStringSetChar overwrites a register; Add better default PrintDataTo for HInstruction ... BUG= Review URL: https://codereview.chromium.org/14895019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-16 14:27:39 +00:00
titzer@chromium.org	68eb1e50ca	Improve dead code elimination by transitively marking live code and removing all dead code. Replace unreachable phi removal algorithm with the new dead code elimination pass, which is more thorough. ... Review URL: https://codereview.chromium.org/14676011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-14 13:10:52 +00:00
danno@chromium.org	6862babfd6	Remove HIsNilAndBranch (it's now unused) ... R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/14971005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-14 12:56:53 +00:00
svenpanne@chromium.org	c1bc396c2d	Consistently assume that arithmetic operations can overflow unless one can prove the opposite. ... Previously, HDiv never had its CanOverflow flag cleared and HMod had inverted logic (compared to HAdd, HSub and HMul). Minor cleanups on the way. R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/14617015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14644 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-13 13:48:15 +00:00
svenpanne@chromium.org	4525879eb0	Print range and type for phis, too. ... To comply with c1visualizer syntax, the format for ranges and types has changed slightly. Furthermore, the format for phi uses has been changed a bit for more consistency, too. R=ulan@chromium.org Review URL: https://codereview.chromium.org/14882006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-13 11:51:49 +00:00
danno@chromium.org	05e8e0e7b4	Elide hole checks on KeyedLoads of holey double arrays ... Improves NavierStokes by about 5% R=ulan@chromium.org Review URL: https://codereview.chromium.org/15014020 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-13 07:35:26 +00:00
svenpanne@chromium.org	f853b08ad0	Fixed constant folding in HMod. ... We have to check for overflow before attempting to do a modulo operation, otherwise Crankshaft itself segfaults on some platforms, e.g. ia32. Added tests even for division, where the problem doesn't show up, just to be sure... R=mvstanton@chromium.org Review URL: https://codereview.chromium.org/14617014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-13 07:32:38 +00:00
verwaest@chromium.org	d24d961638	Clear new-space promotion if the type is smi. ... R=mvstanton@chromium.org Review URL: https://chromiumcodereview.appspot.com/15098002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-10 12:19:34 +00:00
mstarzinger@chromium.org	8829a94c24	Remove obsolete HArrayLiteral instruction. ... R=ulan@chromium.org Review URL: https://codereview.chromium.org/14847013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14613 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-10 09:52:08 +00:00
mstarzinger@chromium.org	efe91b56f6	Remove obsolete HObjectLiteral instruction. ... R=ulan@chromium.org Review URL: https://codereview.chromium.org/14972008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14612 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-10 09:47:05 +00:00
verwaest@chromium.org	52008429b7	Use mutable heapnumbers to store doubles in fields. ... R=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/14850006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-08 15:02:08 +00:00
titzer@chromium.org	dbcd0e925a	Remove HLoadElements instruction and replace with use of more general HLoadNamedField. This removes the need for both the hydrogen and lithium instructions and allows both kinds of loads to be GVN'd. ... Review URL: https://codereview.chromium.org/14556020 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-03 12:21:16 +00:00
jkummerow@chromium.org	0ac47f23d8	Remove 'unanimous use observations' rule from Phi representation inference ... Review URL: https://codereview.chromium.org/14840014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14536 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-03 08:50:48 +00:00
jkummerow@chromium.org	f78f583110	Detect truncating Phi uses of Phis with constant inputs ... Review URL: https://codereview.chromium.org/14260013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14525 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-05-02 16:30:58 +00:00
mstarzinger@chromium.org	04fdcad547	Fix HConstant::InNewSpace() for parallel compilation. ... R=mvstanton@chromium.org Review URL: https://codereview.chromium.org/13977019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-30 08:00:43 +00:00
verwaest@chromium.org	99e17bb12a	Track storage types of instance variables. ... Review URL: https://chromiumcodereview.appspot.com/14146005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-26 15:30:41 +00:00
jkummerow@chromium.org	f80d86cbb1	Better handling of Phi nodes with constant inputs ... Review URL: https://codereview.chromium.org/14471034 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-26 08:47:02 +00:00
jkummerow@chromium.org	628875475e	Fix overflow check in mul-i which was missing since r14322 ... Review URL: https://codereview.chromium.org/14471012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14430 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-25 07:36:59 +00:00
svenpanne@chromium.org	bc06a802a7	Fixed HUnaryMathOperation regarding its possible operations. ... Review URL: https://codereview.chromium.org/14333013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-24 14:51:14 +00:00
jkummerow@chromium.org	5ab6439615	Properly consider Double inputs for representation inference when they are not marked as kFlexibleRepresentation ... Review URL: https://codereview.chromium.org/14408006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-24 12:39:30 +00:00
yangguo@chromium.org	28bbe46a98	Disallow dereferencing deferred handles when generating optimized code. ... R=mvstanton@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/14403015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14388 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-23 09:23:07 +00:00
jkummerow@chromium.org	0c634a1dae	Ignore observed Double output in binary operations when all uses are truncating to Integer32 ... BUG=v8:2424 Review URL: https://codereview.chromium.org/14320021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-22 16:31:16 +00:00
verwaest@chromium.org	8dd69f8dde	Infer smi-range for smi-typed values. ... Review URL: https://chromiumcodereview.appspot.com/14192034 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-22 08:00:28 +00:00
danno@chromium.org	bc04544f02	Replace math.h with cmath ... This will make it easier to use other STL headers in the future Review URL: https://codereview.chromium.org/14362023 Patch from Jochen Eisinger <jochen@chromium.org>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14352 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-19 13:26:47 +00:00
titzer@chromium.org	e210d8325f	Inline isUint32() method from HConstant, which was only used in one place. ... Add utility method for checking whether an HValue is a given int32_t constant. BUG= Review URL: https://codereview.chromium.org/14244023 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14329 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-18 11:22:29 +00:00
svenpanne@chromium.org	55324693aa	Unify canonicalization of HAdd/HSub/HMul a bit. ... HDiv/HMul are a slightly different story and will be handled in a separate CL. Review URL: https://codereview.chromium.org/14296013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14322 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-18 09:24:29 +00:00
svenpanne@chromium.org	0d8b7f7608	Improve handling of unary plus. ... Simple strategy: Transform unary plus into multiplication by one directly in the parser and remove it from the Hydrogen graph later. This gives correct type feedback without any special stub for it. BUG=v8:2527 Review URL: https://codereview.chromium.org/13902013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-17 12:47:15 +00:00
yangguo@chromium.org	e1742a6716	Remove relocation lock. ... Freeze HValue hash codes that are based on object addresses. R=svenpanne@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/14040006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-16 11:00:02 +00:00
mstarzinger@chromium.org	41f032f4d8	Reduce verbosity of hydrogen instructions with OSEs. ... R=hpayer@chromium.org Review URL: https://codereview.chromium.org/14091004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-12 07:59:13 +00:00
hpayer@chromium.org	5fd24b0afa	Added non observable side effects scope and removed unnecessary calls to AddSimulate. ... BUG= Review URL: https://codereview.chromium.org/14174002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-11 13:07:37 +00:00
hpayer@chromium.org	2db9e62fc8	Build fast literals in hydrogen. ... BUG= Review URL: https://codereview.chromium.org/12880017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14211 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-10 13:52:08 +00:00
yangguo@chromium.org	9559181b0e	Fix worst-case behavior of MergeRemovableSimulates(). ... Currently, when a long series of removable simulates are merged, we do this by merging them one by one as we find them. As we merge the value value lists of the simulates, those lists snowball so that we get a quadratic complexity wrt runtime and memory consumption. Instead, we gather simulates that need to be merged, and merge them backwards starting from the last simulate. R=jkummerow@chromium.org BUG=v8:2612 Review URL: https://chromiumcodereview.appspot.com/13649003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-08 17:37:22 +00:00
dslomov@chromium.org	a172a5e839	Remove (H|L)JSArrayLength instructions ... BUG= Review URL: https://codereview.chromium.org/12491023 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-04-03 16:25:24 +00:00
dslomov@chromium.org	47d8af7616	Canonicalize NaNs on store to Fast(Float|Double) arrays ... Also treat holey NaN coming from external float/double arrays correctly BUG=2596 Review URL: https://codereview.chromium.org/12918028 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-28 13:30:16 +00:00
rossberg@chromium.org	83d4a41dec	ES6 symbols: turn symbols into a proper primitive type ... (qua last week's TC39) Specifically: - Install Symbol constructor function on the global object. - Adjust code generation for typeof. - Remove IsSymbol built-in, IS_SYMBOL macro now defined using typeof. - Remove hack that allowed symbols as constructor results, and some other special cases. - Remove symbol_delegate and GetDelegate function. - Extend ToBoolean stub to handle symbols. - Extend ToNumber to return NaN on symbols. - Poison symbol's toString function, and thereby ToString on symbols. R=mstarzinger@chromium.org BUG=v8:2158 Review URL: https://codereview.chromium.org/12957004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14051 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-22 16:33:50 +00:00
mmassi@chromium.org	2416d69183	Fix induction variable detection. ... Review URL: https://codereview.chromium.org/12919005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-18 17:36:24 +00:00
mmassi@chromium.org	73e83b0b0f	Handling expression decomposition and array bounds check hoisting: working code with lots of debugging PrintFs, postdominance check still missing. ... Review URL: https://codereview.chromium.org/12377072 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-18 08:06:00 +00:00
hpayer@chromium.org	05a71fc9e4	Allow direct allocation in old pointer space. ... BUG= Review URL: https://codereview.chromium.org/12314155 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-14 08:32:52 +00:00
yangguo@chromium.org	a722726dc4	Parallel recompilation: fewer handle dereferences and tighter checks. ... BUG= Review URL: https://chromiumcodereview.appspot.com/12832002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-13 16:13:05 +00:00
mvstanton@chromium.org	30ca31f470	HInnerAllocatedObject instruction allows hydrogen code to carve up ... allocated regions into sub objects. BUG= Review URL: https://codereview.chromium.org/12812002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-13 11:05:48 +00:00
mvstanton@chromium.org	cf373b5690	Use an efficient graph constant in CodeStubGraphBuilderBase::BuildGraph(). ... Improve printing for HReturn. R=mstarzinger@chromium.org BUG= Review URL: https://codereview.chromium.org/12585004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-12 15:37:23 +00:00
mvstanton@chromium.org	3d1c89d4b1	Better hydrogen printing for the allocate instruction ... R=danno@chromium.org BUG= Review URL: https://codereview.chromium.org/12391057 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-06 14:10:02 +00:00
svenpanne@chromium.org	61a2c53d09	Track Hydrogen statistics on a per-Isolate basis ... This is basically the same fix as the one for --trace-hydrogen, but now for --hydrogen-stats. Removed a few train wrecks on the way. Review URL: https://codereview.chromium.org/12481015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13835 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-06 10:49:34 +00:00
mstarzinger@chromium.org	df0e676d2f	Print whether a HCheckPrototypeMaps is omitted. ... R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/12425005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13825 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-05 14:11:56 +00:00
jkummerow@chromium.org	03060c7105	Fixed HCheckSmiOrInt <-> HBoundsCheck interaction wrt. representations ... BUG=v8:2556 Review URL: https://codereview.chromium.org/12321165 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13820 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-03-05 09:14:28 +00:00
rossberg@chromium.org	55f93b5532	Renamed "symbols" to "internalized strings" throughout the code base, ... in preparation of the introduction of ES6 'symbols' (aka private/unique names). The SymbolTable became the StringTable. I also made sure to adapt all comments. The only remaining use of the term "symbol" (other than unrelated uses in the parser and such) is now 'NewSymbol' in the API and the 'V8.KeyedLoadGenericSymbol' counter, changing which might break embedders. The one functional change in this CL is that I removed the former 'empty_string' constant, since it is redundant given the 'empty_symbol' constant that we also had (and both were used inconsistently). R=yangguo@chromium.org BUG= Review URL: https://codereview.chromium.org/12210083 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-28 17:03:34 +00:00
jkummerow@chromium.org	610d78cd2c	Integer HConstants don't need to kDependsOnOsrEntries ... Review URL: https://codereview.chromium.org/12299009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13751 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-27 11:40:25 +00:00
svenpanne@chromium.org	fb6776e84a	Made Isolate a mandatory parameter for everything Handle-related. ... Unified parameter order of CreateHandle with the rest of v8 on the way. A few Isolate::Current()s had to be introduced, which is not nice, and not every place will win a beauty contest, but we can clean this up later easily in smaller steps. Review URL: https://codereview.chromium.org/12300018 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13717 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-25 14:46:09 +00:00
yangguo@chromium.org	a9539ff51f	Fix windows build warnings. ... R=jkummerow@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/12321047 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13707 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-21 12:17:48 +00:00
yangguo@chromium.org	0d63cef35b	Constant fold math and string operations. ... R=jkummerow@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/12315005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-21 11:40:37 +00:00
jkummerow@chromium.org	e93011892e	Avoid creating unnecessary branches in Hydrogen ... Review URL: https://codereview.chromium.org/12281019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-21 11:29:51 +00:00
mmassi@chromium.org	8ef28eb5ee	Fixed numeric relations on HPhi instances. ... Review URL: https://codereview.chromium.org/12301027 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-21 10:22:31 +00:00
mmassi@chromium.org	a5c6716cf5	Infrastructure classes for evaluating numeric relations between values. ... Review URL: https://codereview.chromium.org/12226112 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-13 14:16:15 +00:00
mmassi@chromium.org	6333383ceb	Remove instructions properly (stack check elimination was leaving "dangling uses" around). ... BUG= Review URL: https://codereview.chromium.org/12224090 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-12 12:04:29 +00:00
mmassi@chromium.org	2fb5064487	Separated smi check from HBoundsCheck. ... Review URL: https://codereview.chromium.org/12208013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13645 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-12 11:44:08 +00:00
danno@chromium.org	0c3575c874	Generate the TransitionElementsStub using Crankshaft ... This includes: * Adding support for saving callee-clobbered double registers in Crankshaft code. * Adding a new "HTrapAllocationMemento" hydrogen instruction to handle AllocationSiteInfo data in crankshafted stubs. * Adding a new "HAllocate" hydrogen instruction that can allocate raw memory from the GC in crankshafted code. * Support for manipulation of the hole in HChange instructions for Crankshafted stubs. * Utility routines to manually build loops and if statements containing hydrogen code. Review URL: https://codereview.chromium.org/11659022 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-04 12:01:59 +00:00
mmassi@chromium.org	3b8a61dcf3	Base iDef update code. ... Review URL: https://codereview.chromium.org/12079042 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-02-01 10:16:16 +00:00
mmassi@chromium.org	89c4153581	Foundation for the use of informative definitions in Crankshaft. ... Review URL: https://codereview.chromium.org/12090021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-29 15:46:34 +00:00
mstarzinger@chromium.org	44ffa0dcd3	Allow monomorphic loads when static type is known. ... This allows Crankshaft to generate monomorphic loads when the receiver type is statically known even though the load site has polymorphic type feedback. This applies to inlined constructor calls and literals. R=jkummerow@chromium.org TEST=mjsunit/compiler/property-static Review URL: https://codereview.chromium.org/12051058 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-24 17:54:30 +00:00
mstarzinger@chromium.org	ef4d9d1245	Fix map check removal issue in r13488. ... The removal of HCheckMaps is invalid when the instruction has a virtual usage, which can happen e.g. for HLoadElements or HJSArrayLength. R=jkummerow@chromium.org TEST=webkit:fast/js/regress/Float32Array-matrix-mult.html Review URL: https://codereview.chromium.org/12033073 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13491 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-24 12:35:56 +00:00
mstarzinger@chromium.org	1d124f0a75	Allow removal of obsolete map checks after transitions. ... This allows side effect dominator tracking to remove map checks that are dominated by a single HStoreNamedField that performs a transition on the same object. A similar trick could be applied to HAllocateObject. R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/12035026 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-24 09:10:06 +00:00
yangguo@chromium.org	3c22524119	Avoid handle dereference during graph optimization. ... With parallel recompilation enabled, objects made accessible by handles may have changed between graph construction and graph optimization. Therefore we must not assume that information on those objects remain the same between those two phases. To police this, we forbid handle dereferencing during graph optimization. Exceptions to this rule are: - Dereferencing the handle to obtain the raw location of the object. This is safe since parallel recompilation acquires RelocationLock - Some places that dereference the handle for a type check. These are checked to be safe on a case-by-case basis. R=jkummerow@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/12049012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-23 13:52:00 +00:00
yangguo@chromium.org	7f331f6280	Make HCheckPrototypeMaps compatible with parallel recompilation. ... HCheckPrototypeMaps currently records the prototype and the holder of the prototype chain (both ends of the chain) and assumes that the chain elements and their maps did not change in during the entirety of Crankshaft. The actual traversal of the prototype chain happens in Lithium at code generation. With parallel compilation, this assumption is not longer correct. R=mstarzinger@chromium.org BUG= Review URL: https://chromiumcodereview.appspot.com/11864013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-21 15:49:00 +00:00
mmassi@chromium.org	ca78326b66	Revert r13409 ("Make the array bounds check elimination phase optional (and set the foundation for introducing SSI in a simple way).") because of a crash in octane/mandreel. ... Review URL: https://chromiumcodereview.appspot.com/11962041 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-17 16:09:08 +00:00
jkummerow@chromium.org	a496e0d06a	Don't emit code for instructions that are hiding behind an HSoftDeoptimize ... Review URL: https://codereview.chromium.org/11377135 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13412 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-17 14:07:47 +00:00
mmassi@chromium.org	583f67b54b	Make the array bounds check elimination phase optional (and set the foundation for introducing SSI in a simple way). ... BUG= Review URL: https://chromiumcodereview.appspot.com/11783055 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-17 12:39:16 +00:00
mstarzinger@chromium.org	0484ddcf50	Fix arguments materialization for inlined apply(). ... This fixes materialization of the arguments object in case the constant function check if TryCallApply() inside an inlined frame fails. R=svenpanne@chromium.org BUG=v8:2489 TEST=mjsunit/regress/regress-2489 Review URL: https://codereview.chromium.org/11931012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-16 09:25:45 +00:00
svenpanne@chromium.org	252fbddc67	Improved printing of HForceRepresentation. ... Review URL: https://codereview.chromium.org/11745011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2013-01-03 10:05:40 +00:00
yangguo@chromium.org	362218a037	Deopt on overflow in integer mod. ... R=ulan@chromium.org BUG=166379 Review URL: https://chromiumcodereview.appspot.com/11618017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-12-19 12:01:22 +00:00
danno@chromium.org	e797e5a489	Fix crashes in debug output of generated stubs ... R=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/11464027 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-12-11 23:27:15 +00:00
jkummerow@chromium.org	35cd58365d	Make sure HMathMinMax always has a supported representation ... Review URL: https://codereview.chromium.org/11467021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-12-10 12:10:23 +00:00
mvstanton@chromium.org	80819f618d	Add dehoisting to the string printout of hydrogen and lithium instructions. ... This is nice when looking at hydrogen graphs, to see the real key offset. R=mmassi@chromium.org BUG= Review URL: https://codereview.chromium.org/11348176 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-11-22 10:19:05 +00:00
jkummerow@chromium.org	1c086d1202	Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps and comparisons ... Review URL: https://chromiumcodereview.appspot.com/10837165 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-11-14 15:59:45 +00:00
svenpanne@chromium.org	6f9a75a449	Removed useless Canonicalize implementations subsumed by dead code elimination. ... Review URL: https://codereview.chromium.org/11362085 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-11-05 14:38:00 +00:00
svenpanne@chromium.org	9de1d40d28	Improve handling of property loads on the proto chain. ... Previously Crankshaft emitted a generic load for these, now we emit a load of a named field, guarded by a proto chain check. LCheckPrototypeMaps now returns the holder, which is for free, because it already had to check its map as the last step, anyway. This is in sync with what StubCompiler::CheckPrototype does. Review URL: https://codereview.chromium.org/11338030 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-11-05 08:53:54 +00:00
mvstanton@chromium.org	a85fd03caa	Consolidated all the key store/load classes in the Hydrogen and Lithium ... space into just two: HLoadKeyed/HLoadKeyedGeneric and HStoreKeyed/HStoreKeyedGeneric LLoadKeyed/LLoadKeyedGeneric and LStoreKeyed/LStoreKeyedGeneric BUG= Review URL: https://codereview.chromium.org/11238016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-11-02 09:18:53 +00:00
svenpanne@chromium.org	bcb383e055	Improved printing of HLoadElements instruction. ... TBR=jkummerow@chromium.org Review URL: https://codereview.chromium.org/11177004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-10-16 11:41:07 +00:00
svenpanne@chromium.org	f03fd70d9e	Added a simple dead code removal phase. ... We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects. We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now. This patch includes a few const-correctness fixes, most of them were necessary for this CL. Review URL: https://codereview.chromium.org/11088027 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-10-11 10:52:58 +00:00
mstarzinger@chromium.org	4d485a438d	Fix printing of HCallKnownGlobal. ... R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/10941009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-09-18 11:06:05 +00:00
vegorov@chromium.org	106a83252d	Fix DoDeferredNumberTagU to keep the value in xmm1 instead of xmm0 on x64. ... xmm0 is not saved across runtime call on x64 because MacroAssembler::EnterExitFrameEpilogue preserves only allocatable XMM registers unlike on ia32 where it preserves all registers. Cleanup handling of shifts: SHR can deoptimize only when its a shift by 0, all other shift never deoptimize. Fix type inference for i-to-t change instruction. On X64 this ensures that write-barrier is generated correctly. R=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/10868032 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-23 16:14:01 +00:00
vegorov@chromium.org	f476d4d431	Allow uint32 value on optimized frames if they are consumed by safe operations. ... Safe operations are those that either do not observe unsignedness or have special support for uint32 values: - all binary bitwise operations: they perform ToInt32 on inputs; - >> and << shifts: they perform ToInt32 on left hand side and ToUint32 on right hand side; - >>> shift: it performs ToUint32 on both inputs; - stores to integer external arrays (not pixel, float or double ones): these stores are "bitwise"; - HChange: special support added for conversions of uint32 values to double and tagged values; - HSimulate: special support added for deoptimization with uint32 values in registers and stack slots; - HPhi: phis that have only safe uses and only uint32 operands are uint32 themselves. BUG=v8:2097 TEST=test/mjsunit/compiler/uint32.js Review URL: https://chromiumcodereview.appspot.com/10778029 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-22 15:44:17 +00:00
erik.corry@gmail.com	ac4b44297b	Add checks for interceptors to negative lookup code in Crankshaft. ... BUG=140473 Review URL: https://chromiumcodereview.appspot.com/10837141 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-07 14:48:19 +00:00
jkummerow@chromium.org	23a270c6e7	Refactor Math.min/max to be a single HInstruction. ... That allows us to dynamically compute representations and insert appropriate HChange instructions. Review URL: https://chromiumcodereview.appspot.com/10829169 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-06 14:28:27 +00:00
erik.corry@gmail.com	92f30d1df5	Improve load IC so it can call a native accessor even if the holder is ... in dictionary mode. Add a flag to all maps to indicate whether they are used for dictionary (normalized) objects or fast mode objects. Review URL: https://chromiumcodereview.appspot.com/10831153 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-06 14:25:19 +00:00
svenpanne@chromium.org	b5da7279b1	Introduced TypeFeedbackId and BailoutId types. ... This is a refactoring-only CL which improves the typing of IDs associated with AST nodes. The interesting parts are in utils.h and ast.h, the rest of the CL basically follows mechanically. Review URL: https://chromiumcodereview.appspot.com/10831172 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-08-06 14:13:09 +00:00
danno@chromium.org	3667f92cbb	Add dependency to HLoadKeyed* instructions to prevent invalid hoisting ... BUG=chromium:137768 TEST=test/mjsunit/regress/regress-137768.js Review URL: https://chromiumcodereview.appspot.com/10802038 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-23 13:59:24 +00:00
sanjoy@chromium.org	610b705e80	HConstant::PrintDataTo() uses wrong format string ... Review URL: https://chromiumcodereview.appspot.com/10783031 Patch from Zheng Liu <zheng.z.liu@intel.com>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-18 11:40:39 +00:00
verwaest@chromium.org	7cb94437cb	Remove LookupTransitionOrDescriptor altogether. ... Review URL: https://chromiumcodereview.appspot.com/10778011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-16 15:26:10 +00:00
sanjoy@chromium.org	caef7f1031	Unbreak MSVC build by respecting explicit FmtElm constructor. This is ... a real bug caught by MSVC but not g++. BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10700162 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12049 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-11 20:11:04 +00:00
sanjoy@chromium.org	5765fa2546	Defer creating Handles for HConstants to the code generation phase. ... BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10544196 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12048 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-11 16:17:02 +00:00
svenpanne@chromium.org	b6ebc22de8	Improved printing of CheckPrototypeMaps instruction. ... Review URL: https://chromiumcodereview.appspot.com/10696139 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-09 10:46:17 +00:00
verwaest@chromium.org	d7a5b7d5e2	Separating transitions from descriptors. ... In this design maps contain descriptor arrays, which in turn can contain transition arrays. If transitions are needed when no descriptor array is present, a descriptor array without real descriptors is inserted just so it can point at the transition array. The transition array does not contain details about the field it transitions to. In order to weed out transitions to FIELDs from CONSTANT_FUNCTION (what used to be MAP_TRANSITION vs CONSTANT_TRANSITION), the transition needs to be followed and the details need to be looked up in the target map. CALLBACKS transitions are still easy to recognize since the transition targets are stored as an AccessorPair containing the maps, rather than the maps directly. Currently AccessorPairs containing a transition and an accessor are shared between the descriptor array and the transition array. This simplifies lookup since we only have to look in one of both arrays. This will change in subsequent revisions, when descriptor arrays will become shared between multiple maps, since transitions cannot be shared. Review URL: https://chromiumcodereview.appspot.com/10697015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11994 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-07-05 13:54:20 +00:00
yangguo@chromium.org	e4f4aad2d1	x86/x64 port of Math.floor(x/y) to use integer division for specific divisor. ... Only handles when x is int32 and y is int32 constant. BUG=v8:2038 Currently implemented by imul (not fpmul). x86 and x64 algorithm differs a bit. x86 implementation is kind of cumbersome, but I couldn't think of better ways. Review URL: https://chromiumcodereview.appspot.com/10382033 Patch from Zheng Liu <zheng.z.liu@intel.com>. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-06-20 14:08:03 +00:00
erikcorry	0418b67142	Add negative lookups to polymorphic loads in Crankshaft. ... Review URL: http://codereview.chromium.org/10539110 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-06-12 15:44:12 +00:00
danno@chromium.org	43a1f5e25d	Eliminate redundant smi checks ... R=mstarzinger@chromium.org Review URL: https://chromiumcodereview.appspot.com/10543094 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11774 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-06-12 12:16:19 +00:00
sanjoy@chromium.org	6125718f37	Remove TLS access for current Zone. ... By passing around a Zone object explicitly we no longer need to do a TLS access at the sites that allocate memory from the current Zone. BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10534006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11761 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-06-11 12:42:31 +00:00
vegorov@chromium.org	d04ba1b2fb	Improve representation inference ... - Extend HValue interface to allow splitting observed input representation (comming from type feedback) from required input representation (dictated by instruction itself). Currently all instructions except for bitwise binary operations have this representations match. For bitwise binary operations hydrogen builder unconditionaly forces Integer32 representation for those operations that have Double type feedback. Thus causing representation inference to incorrectly count such uses as Integer32 instead of Double. This change also prepares for more fine grained type feedback for inputs of binary operations. - For phies that are not convertable to Integer32 discard direct and indirect use count of Integer32 type to avoid propagation of these uses to connected phies. R=jkummerow@chromium.org BUG=v8:2096 Review URL: https://chromiumcodereview.appspot.com/10540049 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11737 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-06-08 09:21:23 +00:00
danno@chromium.org	9910edbb9a	Implement tracking and optimizations of packed arrays ... R=jkummerow@chromium.org TEST=jkummerow@chromium.org Review URL: https://chromiumcodereview.appspot.com/10170030 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-05-23 14:24:29 +00:00
erik.corry@gmail.com	29c48e1076	Make DeltaBlue performance more stable by ignoring type feedback that ... tells us that a map can transition to another map when we are generating code for load operations. This may cause us to deopt if the same routine is seeing different maps caused by branching in constructors. If so, I have a different change that is around 100 times more complicated that lets us generated Crankshaft code for negative lookups. Review URL: https://chromiumcodereview.appspot.com/10306010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-05-08 09:22:58 +00:00
mmassi@chromium.org	93113da5a2	Eliminate redundant array bound checks (checks already performed earlier in the DT). ... As a special case, for checks on index expressions with the form (expr + constant) if a smaller constant is checked later in the DT also eliminate the check. Finally, if a larger constant is checked later in the same BB do the more general check (larger constant) earlier instead of the less general one. This will not cause useless deoptimizations because, since we are in the same BB, all the checks would have been executed anyway. BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/10032029 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11437 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-25 14:32:27 +00:00
fschneider@chromium.org	6e713a269d	Optimise Math.floor(x/y) to use integer division for specific divisor. ... Landing for Rodolph Perfetta <rodolph.perfetta@gmail.com>. Original CL: http://codereview.chromium.org/9638018/ Review URL: https://chromiumcodereview.appspot.com/10197010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-24 15:59:07 +00:00
fschneider@chromium.org	09657d94eb	Revert r11420 because Win32 compilation was broken. ... TBR=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/10190007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-23 18:12:36 +00:00
fschneider@chromium.org	2957c20926	optimise Math.floor(x/y) to use integer divisiion for specific divisor. ... BUG=none TEST=mjsunit/math-floor-of-div.js Landing for Rodolph Perfetta <rodolph.perfetta@gmail.com>. Review URL: https://chromiumcodereview.appspot.com/9638018 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-23 17:44:21 +00:00
fschneider@chromium.org	0556f87851	Optimize ~~(expr) in optimized code. ... ~~ is commonly used to truncate a value to int32 (ToInt32). This change avoid actually emitting the bitwise operations, and just truncates the subexpression of ~~. BUG=v8:2037 TEST=test/mjsunit/compiler/optimize-bitnot.js Review URL: https://chromiumcodereview.appspot.com/10123007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11390 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-19 13:24:15 +00:00
svenpanne@chromium.org	ef29accd6f	Improved printing of HBitwise instructions. ... Review URL: https://chromiumcodereview.appspot.com/9972007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-16 11:38:01 +00:00
vegorov@chromium.org	8bdbfc02e7	Skip canonicalization check in LStoreKeyedFastDoubleElement when it is not needed: ... - if value is a result of integer32 to double conversion (can't be NaN); - if value was loaded from fast double backing store (already canonicalized). R=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/10054009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11278 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-11 14:08:11 +00:00
vegorov@chromium.org	983d521fe9	Reland arguments access support for inlined functions (r11109,r11118). ... When pushing arguments use correct initial values instead of fetching them from the environment which can be modified. R=fschneider@chromium.org TEST=test/mjsunit/compiler/inline-arguments.js Review URL: https://chromiumcodereview.appspot.com/10033028 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11274 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-11 13:40:55 +00:00
mstarzinger@chromium.org	82cde7c832	Remove write-barriers for stores to new-space objects. ... This change allows hydrogen instructions to keep track of instructions that dominate certain side-effects (GVN flags) in the hydrogen graph. We use the GVN pass to keep track of side-effects because accurate flags are already in place. It also adds a new side-effect (kChangesNewSpacePromotion) indicating whether an instruction can cause a GC and have objects be promoted to old-space. An object allocated in new-space is sure to stay on paths not having said side-effect. R=erik.corry@gmail.com TEST=mjsunit/compiler/inline-construct Review URL: https://chromiumcodereview.appspot.com/10031031 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-04-11 10:56:16 +00:00
mstarzinger@chromium.org	ab4e4cd917	Improve polymorphic loads on single slots. ... If all property lookups for a polymorphic load actually result in the same field index under all maps, we can actually emit a monomorphic load that is guarded by a map check that verifies that the actual map is in the set of handled maps. This also allows GVN to get rid of redundant such map checks. R=danno@chromium.org Review URL: https://chromiumcodereview.appspot.com/9616014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-23 16:37:54 +00:00
vegorov@chromium.org	3ccc885c78	Revert arguments access support for inlined functions (r11109,r11118). ... We are inserting HPushArgument instructions after HEnterInlined based on the environment at the point of the first arguments access. Which might create use before def if there are redundant phis in the environment. Review URL: https://chromiumcodereview.appspot.com/9837041 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-23 15:39:34 +00:00
vegorov@chromium.org	b7dca5d5a7	Support arguments object access from inlined functions. ... R=fschneider@chromium.org TEST=test/mjsunit/compiler/inline-arguments.js Review URL: https://chromiumcodereview.appspot.com/9837002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11109 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-22 13:53:28 +00:00
vegorov@chromium.org	211a867943	Improve representation inference for HUnknownOSRValue. ... Use corresponding phi from the loop entry as a hint to infer proper representation for HUnkownOSRValue and dependent phis. R=fschneider@chromium.org Review URL: https://chromiumcodereview.appspot.com/9704012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-15 12:21:29 +00:00
vegorov@chromium.org	966ebf8f55	Don't take UnkownOSRValues into account when infering Phi's representation. ... For DIV with uninitialized result assume double result representation. R=fschneider@chromium.org Review URL: https://chromiumcodereview.appspot.com/9664070 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-14 12:59:49 +00:00
vegorov@chromium.org	da03f56b1f	Inline functions that use arguments object in f.apply(o, arguments) pattern. ... Support arguments materialization after deoptimization in all frames (not only in topmost one). R=fschneider@chromium.org Review URL: https://chromiumcodereview.appspot.com/9643001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11008 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-12 12:49:41 +00:00
mikhail.naganov@gmail.com	ab86e03a05	Fix signed / unsigned warnings for ?: operators reported by Xcode 4.x clang compiler. ... The patch is based on the report provided by github user Zakay. BUG=none TEST=none Review URL: https://chromiumcodereview.appspot.com/9592030 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10970 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-08 18:27:39 +00:00
danno@chromium.org	57a0c6c6e3	Inline ordered relational compares of mixed double/undefined values. ... Allow Crankshaft to inline ordered relational comparisons (<, >, <=, >=) that have undefined arguments in addition to double value arguments (rather than calling the generic Compare stub). R=fschneider@chromium.org TEST=test/mjsunit/comparison-ops-and-undefined.js Review URL: https://chromiumcodereview.appspot.com/9584006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-03-02 13:40:14 +00:00
fschneider@chromium.org	b854d09721	Eliminate overflow check after integer add and sub operation if result is truncated to int32. ... Review URL: https://chromiumcodereview.appspot.com/9286002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10870 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-29 13:41:18 +00:00
svenpanne@chromium.org	f9cdb0e18c	Explicitly use a Zone when allocating Range. ... This CL is a step towards removing ZoneObject's new operator without a Zone parameter, which uses Isolate::Current. For e.g. the bulletben benchmark, this CL reduces the number of calls to this new operator by roughly 120k, but we are still left with 780k calls from other sites... Review URL: https://chromiumcodereview.appspot.com/9487010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-28 15:32:58 +00:00
mstarzinger@chromium.org	fb8eb04bfd	Implement inlining of constructor calls. ... R=vegorov@chromium.org,kmillikin@chromium.org Review URL: https://chromiumcodereview.appspot.com/9304001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-28 09:05:55 +00:00
yangguo@chromium.org	7a98cb62c3	Speed up removing phi nodes. ... BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/9452022 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-24 08:46:10 +00:00
yangguo@chromium.org	0a6f18294f	Fix bug in r10812. ... BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/9455016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-23 15:37:27 +00:00
yangguo@chromium.org	671084074d	Lazy removal of dead HValues in GVN from use lists. ... BUG=v8:1969 TEST=regress/regress-1969 Review URL: https://chromiumcodereview.appspot.com/9455011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-23 13:59:35 +00:00
vegorov@chromium.org	6703dddac4	Support fast case for-in in Crankshaft. ... Only JSObject enumerables with enum cache (fast case properties, no interceptors, no enumerable properties on the prototype) are supported. HLoadKeyedGeneric with keys produced by for-in enumeration are recognized and rewritten into direct property load by index. For this enum-cache was extended to store property indices in a separate array (see handles.cc). New hydrogen instructions: - HForInPrepareMap: checks for-in fast case preconditions and returns map that contains enum-cache; - HForInCacheArray: extracts enum-cache array from the map; - HCheckMapValue: map check with HValue map instead of immediate; - HLoadFieldByIndex: load fast property by it's index, positive indexes denote in-object properties, negative - out of object properties; Changed hydrogen instructions: - HLoadKeyedFastElement: added hole check suppression for loads from internal FixedArrays that are knows to have no holes inside. R=fschneider@chromium.org BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/9425045 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10794 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-22 12:47:42 +00:00
mstarzinger@chromium.org	1dd2b094a5	Implement fast literal support in Crankshaft. ... This extends the current support for nested object literals we already have in Crankshaft, to also support nested array literals and mixed nested literals containing arrays and objects. All three types are generated by the unified HFastLiteral instruction. All previous upper bounds on nested literal graphs remain unchanged, keeping the size of generated code in check. The main intention is to boost performance of two-dimensional array literals containing constant elements (aka. matrices). R=danno@chromium.org TEST=mjsunit/compiler/literals-optimized Review URL: https://chromiumcodereview.appspot.com/9403018 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-16 17:32:30 +00:00
danno@chromium.org	d949c64688	Improve GVN handling of ElementTransitions. ... BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/9141016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-09 08:58:19 +00:00
svenpanne@chromium.org	82d1f51534	Give uses within a loop a greater weight when doing representation inference. ... Uses of a value are weighted by a factor of FLAG_loop_weight (default: 10) for every loop they are in. This makes uses in inner loops "more important", which should improve the result of the representation inference. Review URL: https://chromiumcodereview.appspot.com/8277031 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-02-01 08:49:18 +00:00
fschneider@chromium.org	2284996cc1	Add range information to external array loads. ... Review URL: http://codereview.chromium.org/9226014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10479 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-01-23 18:11:36 +00:00
svenpanne@chromium.org	fd2731a7e6	Replaced LookupResult::IsProperty by LookupResult::IsFound where possible. ... Yak shaving for map sharing with accessor properties contd.: When CALLBACKS can have map transitions, simply looking at the property type is not sufficient anymore to decide if a property is there or not. One has to look at the actual contents of the descriptor entry then, but this breaks down sometimes when the lookup is being done with a NULL holder. Luckily enough, we can oftren replace IsProperty by the simpler IsFound, because we inspect the type immediately afterwards, anyway. Review URL: https://chromiumcodereview.appspot.com/9280007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-01-23 12:01:47 +00:00
danno@chromium.org	8d741a9add	Split GVN flags from flags in Hydrogen instructions. ... BUG= TEST= Review URL: https://chromiumcodereview.appspot.com/9233005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10460 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-01-20 14:08:20 +00:00
yangguo@chromium.org	ddc0144490	Fixing issue 1898 (using HChange outside the insert-representation-changes phase). ... BUG=v8:1898 TEST=mjsunit/regress/regress-1898.js Review URL: http://codereview.chromium.org/9190047 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-01-13 07:48:44 +00:00
fschneider@chromium.org	befd149ef8	Optimize simple constant cases for bitwise &, | and ^. ... For integer bitwise operations we can replace x & -1 with x, x | 0 with x and x ^ 0 with x. Review URL: http://codereview.chromium.org/9177001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10382 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2012-01-11 10:01:59 +00:00
jkummerow@chromium.org	106973c3d2	Create missing boilerplate for array literals instead of deoptimizing ... BUG=107370 TEST=new additions to mjsunit/array-literal-transitions Review URL: http://codereview.chromium.org/8914006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-12-14 13:01:27 +00:00
danno@chromium.org	25e3d2706d	Optimize Crankshaft array literal initialization from boilerplate. ... BUG=none TEST=test/mjsunit/array-literal-transitions.js Review URL: http://codereview.chromium.org/8747009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-12-02 12:42:35 +00:00
mstarzinger@chromium.org	7e7d4dfd64	Implement crankshaft support for nested object literals. ... This generates optimized code for deep-copying of nested object literal boilerplates which are statically known. Most of the boilerplates have already been generated at crankshaft time, so this optimization should kick in for virtually every object literal. Only nested object literal graphs up to a certain depth and containing up to a certain total number of properties are considered for this optimization. This will prevent explosion of code size due to large object literals (e.g. eval on JSON). Improves splay performance because object literals are created often. R=fschneider@chromium.org Review URL: http://codereview.chromium.org/8640001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-24 13:42:52 +00:00
fschneider@chromium.org	8ebd1999f5	Propagate and combine constants in Hydrogen ... BUG=none TEST=none Review URL: http://codereview.chromium.org/8473002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10034 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-21 10:18:47 +00:00
fschneider@chromium.org	8fbf1d5017	Landing: [hydrogen] optimize switch with string clauses. Patch by Fedor Indutny <fedor.indutny@gmail.com>. ... Original code review: http://codereview.chromium.org/8373029/ Review URL: http://codereview.chromium.org/8589019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-17 13:57:55 +00:00
fschneider@chromium.org	4627023b38	Revert r9901 to make tree green again. ... There was a test failure on x64 mozilla tests. TBR=ricow@chromium.org Review URL: http://codereview.chromium.org/8495011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-08 09:56:09 +00:00
fschneider@chromium.org	cac3008437	[hydrogen] optimize switch with string clauses ... Hydrogen should optimize not only SMI clauses, but clauses with string literals too. Patch from fedor.indutny <fedor.indutny@gmail.com>. R=vegorov@chromium.org BUG= TEST= Review URL: http://codereview.chromium.org/8373029 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-08 09:08:33 +00:00
fschneider@chromium.org	f3f16dc17a	Make non-templatized versions of LIR printing functions. ... This avoid duplicating the code for each template instance. Also remove dead code from different places in our code base. Removed some verification code from release builds. Review URL: http://codereview.chromium.org/8387070 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-11-02 08:32:40 +00:00
danno@chromium.org	0766a138a6	Add and use ElementsKind side effect ... Also partition side effects into observable and not observable, with only observable requiring Simulates and non-observable changes able to participate in GVN and code hoisting. BUG=none TEST=none Review URL: http://codereview.chromium.org/8380017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-31 14:15:10 +00:00
fschneider@chromium.org	0df9569fe5	Merge IR classes for different bitwise operations AND, OR and XOR into one class. ... Since we already have only one LIR class, it does not make much sense to separate them at the HIR level. Review URL: http://codereview.chromium.org/8426005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-31 13:06:26 +00:00
svenpanne@chromium.org	627a3ecbd9	Improved printing of Simulate, LoadNamedFieldPolymorphic, LoadNamedGeneric, and StoreNamedField Hydrogen instructions a bit. ... Review URL: http://codereview.chromium.org/8352044 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9725 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-20 12:55:31 +00:00
jkummerow@chromium.org	3a9d6c04ba	Introduce HTransitionElementsKind instruction. ... TEST=mjsunit/elements-kind Review URL: http://codereview.chromium.org/8305001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-19 12:10:18 +00:00
danno@chromium.org	e5f23399b4	Support array literals with FAST_DOUBLE_ELEMENTS ElementsKind. ... BUG=none TEST=test/mjsunit/array-literal.js Review URL: http://codereview.chromium.org/8258015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-19 11:36:55 +00:00
svenpanne@chromium.org	140ae348d2	Recognize special comparisons via pattern matching on the hydrogen graph, 2nd attempt. ... This time, we initially leave the HTypeof instruction in the Hydrogen graph, even for the special cases. We later try to remove this instruction (and any HConstant) in the canonicalization pass, if possible. Always removing the HTypeof during the initial graph construction is wrong if e.g. it is used in an HSimulate. The removals can be generalized a bit, but this will happen in a separate CL. TEST=mjsunit/optimized-typeof.js Review URL: http://codereview.chromium.org/8334021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-19 07:35:30 +00:00
kmillikin@chromium.org	56c763f023	Make the GC aware of JSReceiver pointers in LookupResults. ... The LookupResult utility class is used in handlified code, but it can contain a raw pointer to the lookup's holder object. Create a per-thread stack of live LookupResults and iterate all the live ones on GC. R=vegorov@chromium.org,erik.corry@gmail.com BUG= TEST= Review URL: http://codereview.chromium.org/8341009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-18 11:18:55 +00:00
jkummerow@chromium.org	eb8f4c642d	Speedup HInstruction::Verify() for pathological cases ... BUG=v8:1767 TEST=mjsunit/numops-fuzz doesn't timeout in debug mode Review URL: http://codereview.chromium.org/8302023 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-17 07:52:20 +00:00
svenpanne@chromium.org	8856b62331	Fixed printing of HTypeofIsAndBranch instruction for non-ASCII type literals. ... Review URL: http://codereview.chromium.org/8291004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-14 13:16:23 +00:00
fschneider@chromium.org	212e4ae7d4	Eliminate write barrier for global stores at compile time if value stored is a smi. ... Omit smi check inside write barriers if the value is known to be a heap object. Refine inferred types of some instructions. Review URL: http://codereview.chromium.org/8256016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9618 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-10-14 07:45:18 +00:00
fschneider@chromium.org	9bc30dfe93	Small simplification of HChange instruction. ... Use existing flag to mark HChange instructions that deoptimize on undefined. Also there is no need to store the source representation explicitly. Review URL: http://codereview.chromium.org/8066007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-09-28 14:01:40 +00:00
fschneider@chromium.org	27e1a8d414	Improve our simple elimination of hole checks. ... Currently we avoid checking for the hole value after array loads, if the result is only used by instructions that definitely deoptimize in case of the hole value (HChange instructions). This change performs the same procedure for loading from deleteable/read-only global variable where we can also avoid the check in the same cases. Review URL: http://codereview.chromium.org/8054008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-09-27 13:03:19 +00:00
svenpanne@chromium.org	901f20b052	Improved printing of a few Hydrogen instructions. ... Review URL: http://codereview.chromium.org/8002021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-09-23 11:51:05 +00:00
danno@chromium.org	f48c9f6557	Basic support for tracking smi-only arrays on ia32. ... Activated by the flag --smi-only-arrays Currently not crankshaft support, using flag on non-ia32 platforms will lead to write barrier misses and crashes. BUG=none TEST=elements_kind.js Review URL: http://codereview.chromium.org/7901016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-09-22 11:30:04 +00:00
svenpanne@chromium.org	1a4086c076	Improved printing of Goto and CompareIDAndBranch instructions. ... Review URL: http://codereview.chromium.org/7862031 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9226 ce2b1a6d-e550-0410-aec6-3dcde31c8c00	2011-09-12 09:57:11 +00:00