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Add SlowBTMem to Sandy Bridge and newer Intel CPUs. Reading through Agner Fog's table suggests there have been no improvements to these processors relative to Westmere for bit test instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244395 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2015-08-08 07:20:04 +00:00
parent 3309afe8f5
commit bef8d8f82e
1 changed files with 9 additions and 5 deletions
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14
lib/Target/X86/X86.td
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@ -307,6 +307,7 @@ def : WestmereProc<"westmere">;
class SandyBridgeProc<string Name> : ProcessorModel<Name, SandyBridgeModel, [
FeatureAVX,
FeatureCMPXCHG16B,
FeatureSlowBTMem,
FeatureFastUAMem,
FeatureSlowUAMem32,
FeaturePOPCNT,
@ -319,6 +320,7 @@ def : SandyBridgeProc<"corei7-avx">; // Legacy alias.
class IvyBridgeProc<string Name> : ProcessorModel<Name, SandyBridgeModel, [
FeatureAVX,
FeatureCMPXCHG16B,
FeatureSlowBTMem,
FeatureFastUAMem,
FeatureSlowUAMem32,
FeaturePOPCNT,
@ -334,6 +336,7 @@ def : IvyBridgeProc<"core-avx-i">; // Legacy alias.
class HaswellProc<string Name> : ProcessorModel<Name, HaswellModel, [
FeatureAVX2,
FeatureCMPXCHG16B,
FeatureSlowBTMem,
FeatureFastUAMem,
FeaturePOPCNT,
FeatureAES,
@ -356,6 +359,7 @@ def : HaswellProc<"core-avx2">; // Legacy alias.
class BroadwellProc<string Name> : ProcessorModel<Name, HaswellModel, [
FeatureAVX2,
FeatureCMPXCHG16B,
FeatureSlowBTMem,
FeatureFastUAMem,
FeaturePOPCNT,
FeatureAES,
@ -390,11 +394,11 @@ def : KnightsLandingProc<"knl">;
class SkylakeProc<string Name> : ProcessorModel<Name, HaswellModel,
[FeatureAVX512, FeatureCDI,
FeatureDQI, FeatureBWI, FeatureVLX,
FeatureCMPXCHG16B, FeatureFastUAMem, FeaturePOPCNT,
FeatureAES, FeaturePCLMUL, FeatureRDRAND, FeatureF16C,
FeatureFSGSBase, FeatureMOVBE, FeatureLZCNT, FeatureBMI,
FeatureBMI2, FeatureFMA, FeatureRTM, FeatureHLE,
FeatureSlowIncDec, FeatureMPX]>;
FeatureCMPXCHG16B, FeatureSlowBTMem, FeatureFastUAMem,
FeaturePOPCNT, FeatureAES, FeaturePCLMUL, FeatureRDRAND,
FeatureF16C, FeatureFSGSBase, FeatureMOVBE, FeatureLZCNT,
FeatureBMI, FeatureBMI2, FeatureFMA, FeatureRTM,
FeatureHLE, FeatureSlowIncDec, FeatureMPX]>;
def : SkylakeProc<"skylake">;
def : SkylakeProc<"skx">; // Legacy alias.