[llvm-commits] CVS: llvm/lib/Target/X86/X86.td

[Bill Wendling]

Changes in directory llvm/lib/Target/X86:

X86.td updated: 1.31 -> 1.32
---
Log message:

Add an "implies" field to features. This indicates that, if the current
feature is set, then the features in the implied list should be set also.
The opposite is also enforced: if a feature in the implied list isn't set,
then the feature that owns that implies list shouldn't be set either.


---
Diffs of the changes:  (+21 -17)

 X86.td |   38 +++++++++++++++++++++-----------------
 1 files changed, 21 insertions(+), 17 deletions(-)


Index: llvm/lib/Target/X86/X86.td
diff -u llvm/lib/Target/X86/X86.td:1.31 llvm/lib/Target/X86/X86.td:1.32
--- llvm/lib/Target/X86/X86.td:1.31	Wed Apr 25 16:31:48 2007
+++ llvm/lib/Target/X86/X86.td	Fri May  4 15:38:40 2007
@@ -18,24 +18,28 @@
 
 //===----------------------------------------------------------------------===//
 // X86 Subtarget features.
-//
+//===----------------------------------------------------------------------===//
  
-def Feature64Bit     : SubtargetFeature<"64bit", "HasX86_64", "true",
-                                        "Support 64-bit instructions">;
-def FeatureMMX       : SubtargetFeature<"mmx","X86SSELevel", "MMX",
-                                        "Enable MMX instructions">;
-def FeatureSSE1      : SubtargetFeature<"sse", "X86SSELevel", "SSE1",
-                                        "Enable SSE instructions">;
-def FeatureSSE2      : SubtargetFeature<"sse2", "X86SSELevel", "SSE2",
-                                        "Enable SSE2 instructions">;
-def FeatureSSE3      : SubtargetFeature<"sse3", "X86SSELevel", "SSE3",
-                                        "Enable SSE3 instructions">;
-def FeatureSSSE3     : SubtargetFeature<"ssse3", "X86SSELevel", "SSSE3",
-                                        "Enable SSSE3 instructions">;
-def Feature3DNow     : SubtargetFeature<"3dnow", "X863DNowLevel", "ThreeDNow",
-                                        "Enable 3DNow! instructions">;
-def Feature3DNowA    : SubtargetFeature<"3dnowa", "X863DNowLevel", "ThreeDNowA",
-                                        "Enable 3DNow! Athlon instructions">;
+def Feature64Bit   : SubtargetFeature<"64bit", "HasX86_64", "true",
+                                      "Support 64-bit instructions">;
+def FeatureMMX     : SubtargetFeature<"mmx","X86SSELevel", "MMX",
+                                      "Enable MMX instructions">;
+def FeatureSSE1    : SubtargetFeature<"sse", "X86SSELevel", "SSE1",
+                                      "Enable SSE instructions",
+                                      [FeatureMMX]>;
+def FeatureSSE2    : SubtargetFeature<"sse2", "X86SSELevel", "SSE2",
+                                      "Enable SSE2 instructions",
+                                      [FeatureSSE1]>;
+def FeatureSSE3    : SubtargetFeature<"sse3", "X86SSELevel", "SSE3",
+                                      "Enable SSE3 instructions",
+                                      [FeatureSSE2]>;
+def FeatureSSSE3   : SubtargetFeature<"ssse3", "X86SSELevel", "SSSE3",
+                                      "Enable SSSE3 instructions",
+                                      [FeatureSSE3]>;
+def Feature3DNow   : SubtargetFeature<"3dnow", "X863DNowLevel", "ThreeDNow",
+                                      "Enable 3DNow! instructions">;
+def Feature3DNowA  : SubtargetFeature<"3dnowa", "X863DNowLevel", "ThreeDNowA",
+                                      "Enable 3DNow! Athlon instructions">;
 
 //===----------------------------------------------------------------------===//
 // X86 processors supported.