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bmeurer 00f7d1f5f8 [intrinsics] Kill the %_IsMinusZero intrinsic. 
By now only the default %TypedArray%.prototype.sort compare function
and the JS implementation of SameValueZero were still using the odd
%_IsMinusZero intrinsic, whose semantics both included a number check
(actually HeapNumber test) plus testing if the heap number stores the
special -0 value. In both cases we already know that we deal with
number so we can reduce it to a simple number test for -0, which can
be expressed via dividing 1 by that value and checking the sign of
the result. In case of the compare function, we can be even smarter
and work with the reciprocal values in case x and y are equal to 0
(although long term we should probably rewrite the fast case for
the typed array sorting function in C++ anyway, which will be way,
way faster than our handwritten callback-style, type-feedback
polluted JS implementation).

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1680783002

Cr-Commit-Position: refs/heads/master@{#33833}
2016-02-09 06:28:53 +00:00
..
compiler [intrinsics] Kill the %_IsMinusZero intrinsic. 2016-02-09 06:28:53 +00:00
heap Remove --stop-at flag from several backends. 2016-02-08 13:57:39 +00:00
interpreter [interpreter] Remove special "prototype" load in class literals. 2016-02-08 15:20:32 +00:00
wasm [wasm] Put the condition last in kExprBrIf. 2016-02-08 21:19:26 +00:00
cctest.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
cctest.gyp Fix the receiver check in the HandleFastApiCall builtin. 2016-01-14 12:24:04 +00:00
cctest.h Re-re-land FastAccessorBuilder. 2015-12-11 09:54:00 +00:00
cctest.isolate Reland [swarming] Isolate v8 testing. 2015-10-05 09:48:42 +00:00
cctest.status Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
DEPS Add DEPS files and run checkdeps in presubmit check 2014-06-03 13:39:42 +00:00
expression-type-collector-macros.h Make typing-asm match spec more closely around load/store, add more tests. 2015-11-30 21:11:47 +00:00
expression-type-collector.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
expression-type-collector.h Create ast/ and parsing/ subdirectories and move appropriate files 2015-11-26 16:23:07 +00:00
gay-fixed.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-fixed.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
gay-precision.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-precision.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
gay-shortest.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
gay-shortest.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
log-eq-of-logging-and-traversal.js Fix test-log/EquivalenceOfLoggingAndTraversal 2013-08-26 14:56:23 +00:00
OWNERS Fix filename typo in OWNERS. 2016-01-11 20:20:18 +00:00
print-extension.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
print-extension.h Remove deprecated functions the smaller half of the remaing tests 2015-11-17 12:42:44 +00:00
profiler-extension.cc Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
profiler-extension.h Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
test-accessors.cc Add the data parameter back to the access check callback 2016-02-03 10:02:35 +00:00
test-api-accessors.cc Generalize 'fast accessor' tests to work with --always-opt. 2016-01-14 14:25:02 +00:00
test-api-fast-accessor-builder.cc [wasm] Provide backoff implementations for the Fxx rounding instructions 2016-02-02 12:26:58 +00:00
test-api-interceptors.cc Add the data parameter back to the access check callback 2016-02-03 10:02:35 +00:00
test-api.cc [api] Make ObjectTemplate::SetNativeDataProperty() work even if the ObjectTemplate does not have a constructor. 2016-02-06 18:10:36 +00:00
test-api.h Move heap and CPU profilers into a dedicated directory. 2015-09-28 19:34:18 +00:00
test-array-list.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-asm-validator.cc Switch to using Function(Any) for foreign functions, label declarations. 2016-02-03 01:21:02 +00:00
test-assembler-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-arm.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-mips64.cc MIPS: Fix FPU min, max, mina, maxa in simulator. 2016-02-05 17:59:05 +00:00
test-assembler-mips.cc Reland of MIPS: Add FPXX support to MIPS32R2 2016-02-08 09:44:19 +00:00
test-assembler-ppc.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-assembler-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-ast-expression-visitor.cc Fix bug where generators got closed prematurely. 2016-01-27 08:13:24 +00:00
test-ast.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-atomicops.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bignum-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bignum.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-bit-vector.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-circular-queue.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-arm.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-mips64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-mips.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-code-stubs.h Introduce x87 port 2014-05-23 16:37:27 +00:00
test-compiler.cc Revert of Type Feedback Vector lives in the closure (patchset #2 id:40001 of https://codereview.chromium.org/1668103002/ ) 2016-02-05 10:48:35 +00:00
test-constantpool.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-conversions.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-cpu-profiler.cc Unflake CPU profiler tests. 2016-02-08 18:12:20 +00:00
test-date.cc [builtins] Refactor the remaining Date builtins. 2016-01-12 10:48:26 +00:00
test-debug.cc [debugger] remove break point hit count and ignore count. 2016-01-21 13:15:29 +00:00
test-decls.cc Ship ES2015 sloppy-mode const semantics 2016-01-11 23:09:59 +00:00
test-deoptimization.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-dictionary.cc Make JSProxies always be in slow mode 2016-01-15 13:03:10 +00:00
test-disasm-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-arm.cc [arm] Add several missing vcvt disassembly tests. 2016-02-08 11:45:37 +00:00
test-disasm-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-mips64.cc MIPS64: r6 compact branch optimization. 2016-01-06 13:36:41 +00:00
test-disasm-mips.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-ppc.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-disasm-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-diy-fp.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-double.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-elements-kind.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-experimental-extra.js Add experimental, non-snapshotted V8 extras 2015-08-20 00:01:14 +00:00
test-extra.js [bootstrapper] extra natives must not use natives syntax. 2016-02-05 12:33:55 +00:00
test-fast-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-feedback-vector.cc Revert of Type Feedback Vector lives in the closure (patchset #2 id:40001 of https://codereview.chromium.org/1668103002/ ) 2016-02-05 10:48:35 +00:00
test-feedback-vector.h The metadata part of TypeFeedbackVector is extracted to TypeFeedbackMetadata array. 2015-10-07 10:33:32 +00:00
test-field-type-tracking.cc Replace HeapType with a non-templated FieldType class. 2016-01-26 15:03:57 +00:00
test-fixed-dtoa.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-flags.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-func-name-inference.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-fuzz-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-gc-tracer.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-global-handles.cc Don't NULL-check GlobalHandle::Node::object_ 2016-01-25 13:10:09 +00:00
test-global-object.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-hashing.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-hashmap.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-heap-profiler.cc Revert "Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12 id:220001 of https://codereview.chromium.org/1555553002/ )" 2016-01-22 16:36:57 +00:00
test-hydrogen-types.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-identity-map.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-inobject-slack-tracking.cc Introduce {FAST,SLOW}_STRING_WRAPPER_ELEMENTS 2016-01-29 18:58:04 +00:00
test-javascript-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-js-arm64-variables.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-list.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-liveedit.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-lockers.cc Add Isolate::DiscardThreadSpecificMetadata method to embedder API. 2015-12-16 15:49:49 +00:00
test-log-stack-tracer.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-log.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-arm.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-ia32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-mips64.cc MIPS: Use PC relative instructions on r6. 2016-02-03 13:31:30 +00:00
test-macro-assembler-mips.cc MIPS: Use PC relative instructions on r6. 2016-02-03 13:31:30 +00:00
test-macro-assembler-x64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-macro-assembler-x87.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-mementos.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-microtask-delivery.cc Pass --harmony-object-observe in tests that depend on it 2015-12-09 20:34:16 +00:00
test-object-observe.cc Add the data parameter back to the access check callback 2016-02-03 10:02:35 +00:00
test-parsing.cc [parser] report invalid rest parameter errors in Arrow functions 2016-02-02 00:33:07 +00:00
test-platform-linux.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-platform-win32.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-platform.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-profile-generator.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-random-number-generator.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-receiver-check-hidden-prototype.cc Fix the receiver check in the HandleFastApiCall builtin. 2016-01-14 12:24:04 +00:00
test-regexp.cc [regexp] implement case-insensitive unicode regexps. 2016-01-27 08:25:38 +00:00
test-reloc-info.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-representation.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-sampler-api.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-serialize.cc [serializer] remove some dead code. 2015-12-15 11:01:17 +00:00
test-simd.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-slots-buffer.cc [cctest] Move most heap related tests to test/cctest/heap and clean wrt IWYU 2015-12-09 11:26:15 +00:00
test-strings.cc Revert of [regexp] implement /ui to mirror the implementation for /i. (patchset #2 id:20001 of https://codereview.chromium.org/1641613002/ ) 2016-02-02 11:44:45 +00:00
test-strtod.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-symbols.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-thread-termination.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-threads.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-trace-event.cc Implement tracing interface for v8 2015-12-17 18:48:35 +00:00
test-transitions.cc Replace HeapType with a non-templated FieldType class. 2016-01-26 15:03:57 +00:00
test-typedarrays.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-types.cc Remove the template magic from types.(h|cc), remove types-inl.h. 2016-02-02 07:26:06 +00:00
test-typing-reset.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-unbound-queue.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-unboxed-doubles.cc New page local store buffer. 2016-02-08 08:51:38 +00:00
test-unique.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-unscopables-hidden-prototype.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-utils-arm64.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-utils-arm64.h [test] Test expectations in cctest should use CHECK and not DCHECK. 2015-12-07 05:37:15 +00:00
test-utils.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-version.cc Disable soon to be deprecated APIs per default for v8 2015-12-09 10:35:04 +00:00
test-weakmaps.cc [cctest] Move most heap related tests to test/cctest/heap and clean wrt IWYU 2015-12-09 11:26:15 +00:00
test-weaksets.cc [cctest] Move most heap related tests to test/cctest/heap and clean wrt IWYU 2015-12-09 11:26:15 +00:00
testcfg.py [test-runner] Move test case processing beyond the multi-process boundary. 2015-11-27 12:52:25 +00:00
trace-extension.cc Add CollectSample API function to CpuProfiler 2016-01-26 20:48:28 +00:00
trace-extension.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
types-fuzz.h Remove the template magic from types.(h|cc), remove types-inl.h. 2016-02-02 07:26:06 +00:00