Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: dc46995eb9ed6f2af8e2c8d95414df91fe79cddf
https://github.com/WebKit/WebKit/commit/dc46995eb9ed6f2af8e2c8d95414df91fe79cddf
Author: Yusuke Suzuki <[email protected]>
Date: 2026-03-11 (Wed, 11 Mar 2026)
Changed paths:
A JSTests/stress/big-int-call-side-effect.js
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
Log Message:
-----------
[JSC] Fix FTL BigInt operations for comparisons
https://bugs.webkit.org/show_bug.cgi?id=309712
rdar://171518842
Reviewed by Yijia Huang.
callWithoutSideEffects should be used only when it is pure operation and
it is not load-dependent. HeapBigInt speculation requirement means that
this function call is load-dependent: we need to check and load the
cell's type before calling operation. Otherwise, this call can be
hoisted randomly before the check.
Test: JSTests/stress/big-int-call-side-effect.js
* JSTests/stress/big-int-call-side-effect.js: Added.
(main.v1):
(main.v4):
(main):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
Canonical link: https://commits.webkit.org/309099@main
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