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| author | Aaron Ballman <aaron@aaronballman.com> | 2013-04-03 18:00:22 +0000 |
|---|---|---|
| committer | Aaron Ballman <aaron@aaronballman.com> | 2013-04-03 18:00:22 +0000 |
| commit | 5e6d20524a1f77f9c24e1b06d0dcb6d5c2d2b874 (patch) | |
| tree | 26f89730ca449187371d7298a8b5b6b1261bab24 | |
| parent | b0c810ff6d238198fec9d9b727809831f0f9bab3 (diff) | |
| download | bcm5719-llvm-5e6d20524a1f77f9c24e1b06d0dcb6d5c2d2b874.tar.gz bcm5719-llvm-5e6d20524a1f77f9c24e1b06d0dcb6d5c2d2b874.zip | |
Ensuring that both bits are set, and not just a combination of one or the other.
llvm-svn: 178674
| -rw-r--r-- | llvm/lib/Support/Host.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp index fef66e634f9..73d98d14874 100644 --- a/llvm/lib/Support/Host.cpp +++ b/llvm/lib/Support/Host.cpp @@ -152,7 +152,8 @@ std::string sys::getHostCPUName() { // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV // indicates that the AVX registers will be saved and restored on context // switch, then we have full AVX support. - bool HasAVX = (ECX & ((1 << 28) | (1 << 27))) != 0 && OSHasAVXSupport(); + const unsigned AVXBits = (1 << 27) | (1 << 28); + bool HasAVX = ((ECX & AVXBits) == AVXBits) && OSHasAVXSupport(); GetX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX); bool Em64T = (EDX >> 29) & 0x1; |
