don't repeat function names in comments; NFC

[oota-llvm.git] / lib / Target / X86 / X86Subtarget.cpp

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index ad593f4be2ea1557fee132f09c42f930763cd1af..f90a0b0d04f17797a5072a5352953ae6ddaca540 100644 (file)
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -189,6 +189,15 @@ void X86Subtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
       FullFS = "+64bit,+sse2";
   }
 
+  // LAHF/SAHF are always supported in non-64-bit mode.
+  if (!In64BitMode) {
+    if (!FullFS.empty())
+      FullFS = "+sahf," + FullFS;
+    else
+      FullFS = "+sahf";
+  }
+
+
   // Parse features string and set the CPU.
   ParseSubtargetFeatures(CPUName, FullFS);
 
@@ -231,7 +240,6 @@ void X86Subtarget::initializeEnvironment() {
   X86SSELevel = NoSSE;
   X863DNowLevel = NoThreeDNow;
   HasCMov = false;
-  HasMMX = false;
   HasX86_64 = false;
   HasPOPCNT = false;
   HasSSE4A = false;
@@ -265,6 +273,7 @@ void X86Subtarget::initializeEnvironment() {
   HasSHA = false;
   HasPRFCHW = false;
   HasRDSEED = false;
+  HasLAHFSAHF = false;
   HasMPX = false;
   IsBTMemSlow = false;
   IsSHLDSlow = false;