[cfe-commits] r94658 - /cfe/trunk/lib/Basic/Targets.cpp

[Anders Carlsson]

Author: andersca
Date: Tue Jan 26 21:47:49 2010
New Revision: 94658

URL: http://llvm.org/viewvc/llvm-project?rev=94658&view=rev
Log:
Add support for 3dnow and 3dnowa, and define the target macros accordingly. (This is needed in order to build Qt).

Modified:
    cfe/trunk/lib/Basic/Targets.cpp

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=94658&r1=94657&r2=94658&view=diff

==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Tue Jan 26 21:47:49 2010
@@ -637,9 +637,13 @@
   enum X86SSEEnum {
     NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42
   } SSELevel;
+  enum AMD3DNowEnum {
+    NoAMD3DNow, AMD3DNow, AMD3DNowAthlon
+  } AMD3DNowLevel;
+
 public:
   X86TargetInfo(const std::string& triple)
-    : TargetInfo(triple), SSELevel(NoMMXSSE) {
+    : TargetInfo(triple), SSELevel(NoMMXSSE), AMD3DNowLevel(NoAMD3DNow) {
     LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
   }
   virtual void getTargetBuiltins(const Builtin::Info *&Records,
@@ -804,6 +808,14 @@
       .Case("mmx", MMX)
       .Default(NoMMXSSE);
     SSELevel = std::max(SSELevel, Level);
+    
+    AMD3DNowEnum ThreeDNowLevel = 
+      llvm::StringSwitch<AMD3DNowEnum>(Features[i].substr(1))
+        .Case("3dnowa", AMD3DNowAthlon)
+        .Case("3dnow", AMD3DNow)
+        .Default(NoAMD3DNow);
+    
+    AMD3DNowLevel = std::max(AMD3DNowLevel, ThreeDNowLevel);
   }
 }
 
@@ -858,6 +870,16 @@
   case NoMMXSSE:
     break;
   }
+  
+  // Each case falls through to the previous one here.
+  switch (AMD3DNowLevel) {
+  case AMD3DNowAthlon:
+    Builder.defineMacro("__3dNOW_A__");
+  case AMD3DNow:
+    Builder.defineMacro("__3dNOW__");
+  case NoAMD3DNow:
+    break;
+  }
 }