Formalize the notion that AVX and SSE are non-overlapping extensions from the compiler's point of view. Per email discussion, we either want to always use VEX-prefixed instructions or never use them, and are taking "HasAVX" to mean "Always use VEX". Passing -mattr=-avx,+sse42 should serve to restore legacy SSE support when desirable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121439 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h
index 58cf3e0..95c438d 100644
--- a/lib/Target/X86/X86Subtarget.h
+++ b/lib/Target/X86/X86Subtarget.h
@@ -155,6 +155,8 @@
bool has3DNowA() const { return X863DNowLevel >= ThreeDNowA; }
bool hasPOPCNT() const { return HasPOPCNT; }
bool hasAVX() const { return HasAVX; }
+ bool hasXMM() const { return hasSSE1() || hasAVX(); }
+ bool hasXMMInt() const { return hasSSE2() || hasAVX(); }
bool hasAES() const { return HasAES; }
bool hasCLMUL() const { return HasCLMUL; }
bool hasFMA3() const { return HasFMA3; }