verwaest@chromium.org
788811244e
Eliminate intentional conversion from Smi to Int32 in HMul
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If not all uses of arithmetic binary operation can be truncated to Smi, check if they can be truncated to Int32 which could avoid minus zero check
Fixed DoMulI on X64 to adopt correct operand size when the representation is Smi
Fixed DoMulI on ARM. Constant right operand optimization is based on Integer 32 instead of its representation.
BUG=
R=verwaest@chromium.org
Review URL: https://chromiumcodereview.appspot.com/22600005
Patch from Weiliang Lin <weiliang.lin2@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-27 13:55:00 +00:00
verwaest@chromium.org
169f5a9d7b
Never hchange nan-hole to hole or hole to nan-hole.
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Only allow changing hole to nan if all uses allow undefined as nan.
R=danno@chromium.org
Review URL: https://chromiumcodereview.appspot.com/22152003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-14 08:54:27 +00:00
jkummerow@chromium.org
6f800f90ee
Fix overflow check computation for Smi Phis
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BUG=v8:2836
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/22629011
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-13 18:18:24 +00:00
verwaest@chromium.org
5de783d47e
Adding Smi support to Add, Sub, Mul, and Bitwise
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R=svenpanne@chromium.org
Review URL: https://chromiumcodereview.appspot.com/20070005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-25 11:53:38 +00:00
olivf@chromium.org
b8d7bee4a3
Avoid tagged values for Instructions that truncate the operands with ToNumber.
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I case the ToNumber is applied to a non numeric value but its not observable (some constants and oddballs) we should already do it in hydrogen...
BUG=
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/19798002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15818 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-23 09:13:59 +00:00
bmeurer@chromium.org
47df386841
Turn the representation changes into a proper HPhase.
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R=mvstanton@chromium.org
Review URL: https://codereview.chromium.org/18832002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-08 09:02:09 +00:00
