Use index [4] instead of [3] to save MXCSR in case cf-protection is enabled#70
Merged
neboat merged 1 commit intoOpenCilk:devfrom Feb 20, 2026
Merged
Use index [4] instead of [3] to save MXCSR in case cf-protection is enabled#70neboat merged 1 commit intoOpenCilk:devfrom
neboat merged 1 commit intoOpenCilk:devfrom
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On x86 (at least) cf-protection causes
builtin_setjmpto save the shadow stack pointer in index 3 of the five word buffer. Move the saved MXCSR to index 4.