Only generate the popc instruction for SPARC CPUs that implement it.

[oota-llvm.git] / lib / Target / Sparc / Sparc.td

diff --git a/lib/Target/Sparc/Sparc.td b/lib/Target/Sparc/Sparc.td
index 9f6992de2f132a8aa282a59b44a141dc93fc7c59..ab86dc9c311e98e39006947eb29f6cec1eb4ca8c 100644 (file)
--- a/lib/Target/Sparc/Sparc.td
+++ b/lib/Target/Sparc/Sparc.td
@@ -34,6 +34,9 @@ def FeatureHardQuad
   : SubtargetFeature<"hard-quad-float", "HasHardQuad", "true",
                      "Enable quad-word floating point instructions">;
 
+def UsePopc : SubtargetFeature<"popc", "UsePopc", "true",
+                               "Use the popc (population count) instruction">;
+
 //===----------------------------------------------------------------------===//
 // Register File, Calling Conv, Instruction Descriptions
 //===----------------------------------------------------------------------===//
@@ -69,9 +72,9 @@ def : Proc<"v9",              [FeatureV9]>;
 def : Proc<"ultrasparc",      [FeatureV9, FeatureV8Deprecated]>;
 def : Proc<"ultrasparc3",     [FeatureV9, FeatureV8Deprecated]>;
 def : Proc<"niagara",         [FeatureV9, FeatureV8Deprecated]>;
-def : Proc<"niagara2",        [FeatureV9, FeatureV8Deprecated]>;
-def : Proc<"niagara3",        [FeatureV9, FeatureV8Deprecated]>;
-def : Proc<"niagara4",        [FeatureV9, FeatureV8Deprecated]>;
+def : Proc<"niagara2",        [FeatureV9, FeatureV8Deprecated, UsePopc]>;
+def : Proc<"niagara3",        [FeatureV9, FeatureV8Deprecated, UsePopc]>;
+def : Proc<"niagara4",        [FeatureV9, FeatureV8Deprecated, UsePopc]>;
 
 
 //===----------------------------------------------------------------------===//