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-rw-r--r--lib/Target/X86/X86.td3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/X86.td b/lib/Target/X86/X86.td
index 784c3a6557ff0..3a421fe773926 100644
--- a/lib/Target/X86/X86.td
+++ b/lib/Target/X86/X86.td
@@ -235,6 +235,8 @@ def FeatureLEAUsesAG : SubtargetFeature<"lea-uses-ag", "LEAUsesAG", "true",
"LEA instruction needs inputs at AG stage">;
def FeatureSlowLEA : SubtargetFeature<"slow-lea", "SlowLEA", "true",
"LEA instruction with certain arguments is slow">;
+def FeatureSlow3OpsLEA : SubtargetFeature<"slow-3ops-lea", "Slow3OpsLEA", "true",
+ "LEA instruction with 3 ops or certain registers is slow">;
def FeatureSlowIncDec : SubtargetFeature<"slow-incdec", "SlowIncDec", "true",
"INC and DEC instructions are slower than ADD and SUB">;
def FeatureSoftFloat
@@ -480,6 +482,7 @@ def SNBFeatures : ProcessorFeatures<[], [
FeatureXSAVE,
FeatureXSAVEOPT,
FeatureLAHFSAHF,
+ FeatureSlow3OpsLEA,
FeatureFastScalarFSQRT,
FeatureFastSHLDRotate
]>;