[webkit-changes] [WebKit/WebKit] ad2e13: Print AIR in WASM BBQ disassembly

[Justin Michaud]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ad2e13b2a8e69c2ea538cdb8c7cb101a40555266
      https://github.com/WebKit/WebKit/commit/ad2e13b2a8e69c2ea538cdb8c7cb101a40555266
  Author: Justin Michaud <justin_michaud at apple.com>
  Date:   2022-09-06 (Tue, 06 Sep 2022)

  Changed paths:
    M Source/JavaScriptCore/assembler/AbstractMacroAssembler.h
    M Source/JavaScriptCore/assembler/LinkBuffer.cpp
    M Source/JavaScriptCore/b3/B3Common.cpp
    M Source/JavaScriptCore/b3/B3PatchpointSpecial.cpp
    M Source/JavaScriptCore/b3/B3Value.cpp
    M Source/JavaScriptCore/b3/B3Value.h
    M Source/JavaScriptCore/disassembler/X86Disassembler.cpp
    M Source/JavaScriptCore/jit/AssemblyHelpers.cpp
    M Source/JavaScriptCore/jit/AssemblyHelpersSpoolers.h
    M Source/JavaScriptCore/jit/ScratchRegisterAllocator.cpp
    M Source/JavaScriptCore/wasm/WasmAirIRGenerator.cpp
    M Source/JavaScriptCore/wasm/WasmBBQPlan.cpp
    M Source/JavaScriptCore/wasm/WasmBBQPlan.h
    M Source/JavaScriptCore/wasm/WasmThunks.cpp
    M Source/JavaScriptCore/wasm/generateWasmOpsHeader.py
    M Source/JavaScriptCore/wasm/js/JSToWasm.cpp
    M Source/WTF/wtf/Assertions.h
    M Source/WTF/wtf/StackTrace.cpp
    M Source/WTF/wtf/StackTrace.h

  Log Message:
  -----------
  Print AIR in WASM BBQ disassembly
https://bugs.webkit.org/show_bug.cgi?id=244644

Reviewed by Yusuke Suzuki.

1) Print AIR in WASM disassembly

2) Add extra jit comments, notably the compiler backtrace where each patchpoint is constructed

3) Add support for multiple jit comments

4) Add support for printing jit comments on x86

* Source/JavaScriptCore/assembler/LinkBuffer.cpp:
(JSC::LinkBuffer::linkComments):
* Source/JavaScriptCore/b3/B3PatchpointSpecial.cpp:
(JSC::B3::PatchpointSpecial::generate):
* Source/JavaScriptCore/b3/B3Value.h:
* Source/JavaScriptCore/disassembler/X86Disassembler.cpp:
(JSC::tryToDisassemble):
* Source/JavaScriptCore/jit/AssemblyHelpers.cpp:
(JSC::AssemblyHelpers::restoreCalleeSavesFromEntryFrameCalleeSavesBuffer):
(JSC::AssemblyHelpers::restoreCalleeSavesFromVMEntryFrameCalleeSavesBufferImpl):
(JSC::AssemblyHelpers::loadWasmContextInstance):
(JSC::AssemblyHelpers::storeWasmContextInstance):
(JSC::AssemblyHelpers::debugCall):
(JSC::AssemblyHelpers::copyCalleeSavesToEntryFrameCalleeSavesBufferImpl):
(JSC::AssemblyHelpers::emitSave):
(JSC::AssemblyHelpers::emitRestore):
(JSC::AssemblyHelpers::emitSaveCalleeSavesFor):
(JSC::AssemblyHelpers::emitRestoreCalleeSavesFor):
* Source/JavaScriptCore/jit/AssemblyHelpersSpoolers.h:
(JSC::AssemblyHelpers::Spooler::execute):
* Source/JavaScriptCore/jit/ScratchRegisterAllocator.cpp:
(JSC::ScratchRegisterAllocator::preserveReusedRegistersByPushing):
(JSC::ScratchRegisterAllocator::restoreReusedRegistersByPopping):
(JSC::ScratchRegisterAllocator::preserveRegistersToStackForCall):
(JSC::ScratchRegisterAllocator::restoreRegistersFromStackForCall):
* Source/JavaScriptCore/wasm/WasmAirIRGenerator.cpp:
(JSC::Wasm::AirIRGenerator::addCall):
(JSC::Wasm::parseAndCompileAir):
* Source/JavaScriptCore/wasm/WasmBBQPlan.cpp:
(JSC::Wasm::BBQPlan::didCompleteCompilation):
* Source/JavaScriptCore/wasm/WasmThunks.cpp:
(JSC::Wasm::throwExceptionFromWasmThunkGenerator):
(JSC::Wasm::throwStackOverflowFromWasmThunkGenerator):
(JSC::Wasm::triggerOMGEntryTierUpThunkGenerator):
* Source/JavaScriptCore/wasm/js/JSToWasm.cpp:
(JSC::Wasm::marshallJSResult):
(JSC::Wasm::createJSToWasmWrapper):
* Source/WTF/wtf/Assertions.h:

Canonical link: https://commits.webkit.org/254198@main