On ia32, SAHF is guaranteed. It's only necessary to probe for it on x64.
R=svenpanne@chromium.org
BUG=376087
LOG=N
Review URL: https://codereview.chromium.org/
296133006
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21422
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
CPU cpu;
CHECK(cpu.has_sse2()); // SSE2 support is mandatory.
CHECK(cpu.has_cmov()); // CMOV support is mandatory.
- CHECK(cpu.has_sahf()); // SAHF must be available in compat/legacy mode.
- supported_ |= 1u << SAHF;
supported_ |= OS::CpuFeaturesImpliedByPlatform();
// Only use statically determined features for cross compile (snapshot).