Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 80778f6d90cfd5af2da37b8a47dd345dc4df5fee
https://github.com/WebKit/WebKit/commit/80778f6d90cfd5af2da37b8a47dd345dc4df5fee
Author: Yusuke Suzuki <ysuz...@apple.com>
Date: 2024-09-23 (Mon, 23 Sep 2024)
Changed paths:
A JSTests/microbenchmarks/hash-map-double.js
M Source/JavaScriptCore/assembler/ARM64Assembler.h
M Source/JavaScriptCore/assembler/MacroAssemblerARM64.cpp
M Source/JavaScriptCore/assembler/MacroAssemblerARM64.h
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
M Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.cpp
M Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/ftl/FTLOutput.cpp
M Source/JavaScriptCore/ftl/FTLOutput.h
M Source/WTF/wtf/PlatformHave.h
Log Message:
-----------
[JSC] Use frint32z if possible
https://bugs.webkit.org/show_bug.cgi?id=280094
rdar://136392239
Reviewed by Yijia Huang.
ARMv8.4 supports frint32z / frint32x / frint64z / frint64x and we can
convert double to int32 / int64 representing integers within FP
registers. This patch utilizes it so that it reduces traveling between
FP and GP.
ToT Patched
hash-map-double 11.7468+-0.0558 ^ 11.4932+-0.0750 ^
definitely 1.0221x faster
* JSTests/microbenchmarks/hash-map-double.js: Added.
(test):
* Source/JavaScriptCore/assembler/ARM64Assembler.h:
* Source/JavaScriptCore/assembler/MacroAssemblerARM64.cpp:
(JSC::MacroAssemblerARM64::collectCPUFeatures):
* Source/JavaScriptCore/assembler/MacroAssemblerARM64.h:
(JSC::MacroAssemblerARM64::roundTowardZeroInt32Double):
(JSC::MacroAssemblerARM64::roundTowardZeroInt32Float):
(JSC::MacroAssemblerARM64::roundTowardZeroInt64Double):
(JSC::MacroAssemblerARM64::roundTowardZeroInt64Float):
(JSC::MacroAssemblerARM64::branchConvertDoubleToInt32):
(JSC::MacroAssemblerARM64::supportsRoundFloatToIntegerFloat):
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp:
* Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.cpp:
(JSC::ARM64Disassembler::A64DOpcodeFloatingPointDataProcessing4Source::format):
* Source/JavaScriptCore/disassembler/ARM64/A64DOpcode.h:
(JSC::ARM64Disassembler::A64DOpcodeFloatingPointDataProcessing4Source::opName):
(JSC::ARM64Disassembler::A64DOpcodeFloatingPointDataProcessing4Source::opNum):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileDoubleRep):
(JSC::FTL::DFG::LowerDFGToB3::tryDoubleToInt32AsDouble):
(JSC::FTL::DFG::LowerDFGToB3::tryDoubleToInt64AsDouble):
(JSC::FTL::DFG::LowerDFGToB3::compileArithPow):
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
* Source/JavaScriptCore/ftl/FTLOutput.cpp:
(JSC::FTL::Output::doubleToInt32):
(JSC::FTL::Output::doubleToUInt32):
(JSC::FTL::Output::doubleToInt): Deleted.
(JSC::FTL::Output::doubleToUInt): Deleted.
* Source/JavaScriptCore/ftl/FTLOutput.h:
* Source/WTF/wtf/PlatformHave.h:
Canonical link: https://commits.webkit.org/284086@main
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