Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6ccecb6246b68e558105c2888e01ccbcf67b1a64
https://github.com/WebKit/WebKit/commit/6ccecb6246b68e558105c2888e01ccbcf67b1a64
Author: Shu-yu Guo <[email protected]>
Date: 2026-10-12 (Mon, 12 Oct 2026)
Changed paths:
M Source/JavaScriptCore/b3/B3StackmapGenerationParams.h
M
Source/JavaScriptCore/b3/air/AirAllocateRegistersAndStackAndGenerateCode.cpp
M Source/JavaScriptCore/b3/air/AirCode.cpp
M Source/JavaScriptCore/b3/air/AirCode.h
M Source/JavaScriptCore/b3/air/AirGenerate.cpp
M Source/JavaScriptCore/b3/air/AirGenerationContext.h
M Source/JavaScriptCore/b3/testb3.h
M Source/JavaScriptCore/b3/testb3_1.cpp
M Source/JavaScriptCore/b3/testb3_6.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/wasm/WasmOMGIRGenerator.cpp
Log Message:
-----------
[B3][Air] Let prologue generators emit late paths
https://bugs.webkit.org/show_bug.cgi?id=327261
rdar://189822287
Reviewed by Yusuke Suzuki.
Add the ability to let Air prologue generators emit late paths (i.e. OOL slow
paths).
This is accomplished by passing in a context to the prologue generator.
There is no behavior change in this patch.
Test: Source/JavaScriptCore/b3/testb3_6.cpp (testPrologueGeneratorLatePath)
Source/JavaScriptCore/b3/testb3_1.cpp
* Source/JavaScriptCore/b3/B3StackmapGenerationParams.h:
(JSC::B3::StackmapGenerationParams::addLatePath const):
* Source/JavaScriptCore/b3/air/AirAllocateRegistersAndStackAndGenerateCode.cpp:
(JSC::B3::Air::GenerateAndAllocateRegisters::generate):
* Source/JavaScriptCore/b3/air/AirCode.cpp:
(JSC::B3::Air::Code::Code):
(JSC::B3::Air::defaultPrologueGenerator):
(JSC::B3::Air::Code::emitDefaultPrologue):
* Source/JavaScriptCore/b3/air/AirCode.h:
* Source/JavaScriptCore/b3/air/AirGenerate.cpp:
(JSC::B3::Air::generateWithAlreadyAllocatedRegisters):
* Source/JavaScriptCore/b3/air/AirGenerationContext.h:
(JSC::B3::Air::GenerationContext::addLatePath):
* Source/JavaScriptCore/b3/testb3.h:
* Source/JavaScriptCore/b3/testb3_1.cpp:
(run):
* Source/JavaScriptCore/b3/testb3_6.cpp:
(testPrologueGeneratorLatePath):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::lower):
* Source/JavaScriptCore/wasm/WasmOMGIRGenerator.cpp:
(JSC::Wasm::OMGIRGenerator::OMGIRGenerator):
(JSC::Wasm::OMGIRGenerator::insertEntrySwitch):
Canonical link: https://commits.webkit.org/323494@main
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