MaskRay added a comment. Ah, OK. I am investigating a miscompile that `: "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \` may assign `"=r"` to use RDX. The output then looks like
xchgq %rbx, %rdx cpuid xchgq %rbx, %rdx and rbx is clobbered, since cpuid writes rax/rbx/rcx/rdx. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D128461/new/ https://reviews.llvm.org/D128461 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
