Move FeatureAES from SLM, WSM and SNB to GLM and SKL

[thiagomacieira]

Summary

Complements https://reviews.llvm.org/D51510 and matches https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01940.html

GoldmontProc already has FeatureAES.

[thiagomacieira]

lib/Target/X86/X86.td

627 ↗

(On Diff #163614)

Already here.

[craig.topper]

LGTM

llvm/trunk/lib/Target/X86/X86.td

class SilvermontProc<string Name> : ProcessorModel<Name, SLMModel, [
   FeatureSSE42,
   FeatureFXSR,
   FeatureNOPL,
   Feature64Bit,
   FeatureCMPXCHG16B,
   FeatureMOVBE,
   FeaturePOPCNT,
   FeaturePCLMUL,
-  FeatureAES,
   FeatureSlowDivide64,
   FeatureSlowTwoMemOps,
   FeaturePRFCHW,
   FeatureSlowLEA,
   FeatureSlowIncDec,
   FeatureSlowPMULLD,
   FeatureRDRAND,
   FeatureLAHFSAHF,
class WestmereProc<string Name> : ProcessorModel<Name, SandyBridgeModel, [
   FeatureCMOV,
   FeatureMMX,
   FeatureSSE42,
   FeatureFXSR,
   FeatureNOPL,
   Feature64Bit,
   FeatureCMPXCHG16B,
   FeaturePOPCNT,
-  FeatureAES,
   FeaturePCLMUL,
   FeatureLAHFSAHF,
   FeatureMacroFusion
 ]>;
 def : WestmereProc<"westmere">;
 
 // SSE is not listed here since llvm treats AVX as a reimplementation of SSE,
 // rather than a superset.
 def SNBFeatures : ProcessorFeatures<[], [
   FeatureX87,
   FeatureCMOV,
   FeatureMMX,
   FeatureAVX,
   FeatureFXSR,
   FeatureNOPL,
   Feature64Bit,
   FeatureCMPXCHG16B,
   FeaturePOPCNT,
-  FeatureAES,
   FeatureSlowDivide64,
   FeaturePCLMUL,
   FeatureXSAVE,
   FeatureXSAVEOPT,
   FeatureLAHFSAHF,
   FeatureSlow3OpsLEA,
   FeatureFastScalarFSQRT,
   FeatureFastSHLDRotate,
class BroadwellProc<string Name> : ProcModel<Name, BroadwellModel,
                                              BDWFeatures.Value, [
   ProcIntelBDW,
   FeaturePOPCNTFalseDeps,
   FeatureLZCNTFalseDeps
 ]>;
 def : BroadwellProc<"broadwell">;
 
 def SKLFeatures : ProcessorFeatures<BDWFeatures.Value, [
+  FeatureAES,
   FeatureMPX,
   FeatureRTM,
   FeatureXSAVEC,
   FeatureXSAVES,
   FeatureCLFLUSHOPT,
   FeatureFastVectorFSQRT
 ]>;