Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 54c30c45bed4cb4c6232cdd08d44ac783725430b
https://github.com/WebKit/WebKit/commit/54c30c45bed4cb4c6232cdd08d44ac783725430b
Author: Sergey Rubanov <[email protected]>
Date: 2026-09-05 (Sat, 05 Sep 2026)
Changed paths:
M Source/JavaScriptCore/b3/B3LowerToAir.cpp
M Source/JavaScriptCore/jit/SIMDInfo.h
M Source/JavaScriptCore/wasm/WasmBBQJIT64.cpp
Log Message:
-----------
[JSC] Load ARM64 SIMD bitmask tower constants
https://bugs.webkit.org/show_bug.cgi?id=323350
Reviewed by Yusuke Suzuki.
ARM64 i8x16/i16x8/i32x4.bitmask builds a {1,2,4,...} v128 mask
and materializes it with two 64-bit GPR moves plus splat and
replace-lane. Those lane values are not a repeated immediate.
Load the masks from a shared aligned constant via vectorBitmaskTower.
BBQ uses loadVector. B3 uses MoveVector from that address.
* Source/JavaScriptCore/jit/SIMDInfo.h:
* Source/JavaScriptCore/wasm/WasmBBQJIT64.cpp:
* Source/JavaScriptCore/b3/B3LowerToAir.cpp:
Canonical link: https://commits.webkit.org/320579@main
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