Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: b5a91e8e40a684cd9fe7694da3ba16b75a2470a9
https://github.com/WebKit/WebKit/commit/b5a91e8e40a684cd9fe7694da3ba16b75a2470a9
Author: Ross Kirsling <[email protected]>
Date: 2023-04-24 (Mon, 24 Apr 2023)
Changed paths:
M Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp
M Source/JavaScriptCore/jit/JITStubsMSVC64.asm
Log Message:
-----------
[JSC] Implement ctiMasmProbeTrampolineSIMD for MSVC
https://bugs.webkit.org/show_bug.cgi?id=255856
Reviewed by Yusuke Suzuki.
258282@main implemented ctiMasmProbeTrampolineSIMD for non-MSVC x86_64, this
patch implements the MSVC version.
(As with non-MSVC, this is identical to ctiMasmProbeTrampoline except for the
use of vmovaps.)
Without this, testProbeModifiesStackPointerToInsideProbeStateOnStack fails in
testmasm.
(The size of Probe::State increased with the addition of fprs.vectors, but the
position on the stack did not change,
meaning that the last iteration(s) would try to move the stack pointer in a
*positive* direction.)
* Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp:
(JSC::MacroAssembler::probe):
* Source/JavaScriptCore/jit/JITStubsMSVC64.asm:
Canonical link: https://commits.webkit.org/263301@main
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