Add X86 LZCNT instruction. Including instruction selection support.

[oota-llvm.git] / lib / Target / X86 / X86.td

diff --git a/lib/Target/X86/X86.td b/lib/Target/X86/X86.td
index 85376066da41fce0e16f25b5199ad8c7378eb38b..133ae7066e99fd099688ca5053e8c2d21271f85e 100644 (file)
--- a/lib/Target/X86/X86.td
+++ b/lib/Target/X86/X86.td
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This is a target description file for the Intel i386 architecture, referred to
-// here as the "X86" architecture.
+// This is a target description file for the Intel i386 architecture, referred
+// to here as the "X86" architecture.
 //
 //===----------------------------------------------------------------------===//
 
@@ -102,6 +102,8 @@ def FeatureRDRAND  : SubtargetFeature<"rdrand", "HasRDRAND", "true",
                                       "Support RDRAND instruction">;
 def FeatureF16C    : SubtargetFeature<"f16c", "HasF16C", "true",
                        "Support 16-bit floating point conversion instructions">;
+def FeatureLZCNT   : SubtargetFeature<"lzcnt", "HasLZCNT", "true",
+                                      "Support LZCNT instruction">;
 
 //===----------------------------------------------------------------------===//
 // X86 processors supported.