Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e0651af57025a59af5f46f37ec2cf377878ca18d
https://github.com/WebKit/WebKit/commit/e0651af57025a59af5f46f37ec2cf377878ca18d
Author: Mikhail R. Gadelha <[email protected]>
Date: 2025-09-29 (Mon, 29 Sep 2025)
Changed paths:
M Source/JavaScriptCore/assembler/MacroAssemblerX86_64.h
M Source/JavaScriptCore/assembler/X86Assembler.h
M Source/JavaScriptCore/wasm/WasmBBQJIT.cpp
Log Message:
-----------
[JSC] Simplify BBQJIT::addF32Copysign
https://bugs.webkit.org/show_bug.cgi?id=299383
Reviewed by Yusuke Suzuki.
This PR simplifies the BBQJIT::addF32Copysign implementation by using fp
instructions on all platforms.
In some cases, we were converting the fps to scalar to perform part or all of
the
copy sign operation, especially on x86_64, where a couple of float operations
were missing. These are now also implemented.
* Source/JavaScriptCore/assembler/MacroAssemblerX86_64.h:
(JSC::MacroAssemblerX86_64::absFloat):
(JSC::MacroAssemblerX86_64::negateFloat):
* Source/JavaScriptCore/assembler/X86Assembler.h:
(JSC::X86Assembler::pslld_i8r):
* Source/JavaScriptCore/wasm/WasmBBQJIT.cpp:
(JSC::Wasm::BBQJITImpl::BBQJIT::addF32Copysign):
Canonical link: https://commits.webkit.org/300704@main
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