Make '-mtune=x86_64' assume fast unaligned memory accesses.

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

diff --git a/lib/Target/X86/X86.td b/lib/Target/X86/X86.td
index e3c22d9c3b8c417c80a23c14659de46529e1561e..b9d8cf76453b72f4873766e4253a8377aef08d5d 100644 (file)
--- a/lib/Target/X86/X86.td
+++ b/lib/Target/X86/X86.td
@@ -155,7 +155,8 @@ def : Proc<"pentium3m",       [FeatureSSE1, FeatureSlowBTMem]>;
 def : Proc<"pentium-m",       [FeatureSSE2, FeatureSlowBTMem]>;
 def : Proc<"pentium4",        [FeatureSSE2]>;
 def : Proc<"pentium4m",       [FeatureSSE2, FeatureSlowBTMem]>;
-def : Proc<"x86-64",          [FeatureSSE2, Feature64Bit, FeatureSlowBTMem]>;
+def : Proc<"x86-64",          [FeatureSSE2, Feature64Bit, FeatureSlowBTMem,
+                               FeatureFastUAMem]>;
 def : Proc<"yonah",           [FeatureSSE3, FeatureSlowBTMem]>;
 def : Proc<"prescott",        [FeatureSSE3, FeatureSlowBTMem]>;
 def : Proc<"nocona",          [FeatureSSE3, FeatureCMPXCHG16B,