[llvm] r329414 - [X86] Merge itineraries for CLC, CMC, and STC.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Fri Apr  6 09:16:43 2018
New Revision: 329414

URL: http://llvm.org/viewvc/llvm-project?rev=329414&view=rev
Log:
[X86] Merge itineraries for CLC, CMC, and STC.

These are very simple flag setting instructions that appear to only be a single uop. They're unlikely to need this separation.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.td
    llvm/trunk/lib/Target/X86/X86Schedule.td
    llvm/trunk/lib/Target/X86/X86ScheduleAtom.td

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=329414&r1=329413&r2=329414&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Fri Apr  6 09:16:43 2018
@@ -2119,13 +2119,13 @@ def INSL : I<0x6D, RawFrmDst, (outs), (i
 
 // Flag instructions
 let SchedRW = [WriteALU] in {
-def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
-def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
+def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC_CMC_STC>;
+def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_CLC_CMC_STC>;
 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
-def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
+def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CLC_CMC_STC>;
 
 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
 }

Modified: llvm/trunk/lib/Target/X86/X86Schedule.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Schedule.td?rev=329414&r1=329413&r2=329414&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Schedule.td (original)
+++ llvm/trunk/lib/Target/X86/X86Schedule.td Fri Apr  6 09:16:43 2018
@@ -641,12 +641,10 @@ def IIC_CMPXCHG_8B : InstrItinClass;
 def IIC_CMPXCHG_16B : InstrItinClass;
 def IIC_LODS : InstrItinClass;
 def IIC_OUTS : InstrItinClass;
-def IIC_CLC : InstrItinClass;
+def IIC_CLC_CMC_STC : InstrItinClass;
 def IIC_CLD : InstrItinClass;
 def IIC_CLI : InstrItinClass;
-def IIC_CMC : InstrItinClass;
 def IIC_CLTS : InstrItinClass;
-def IIC_STC : InstrItinClass;
 def IIC_STI : InstrItinClass;
 def IIC_STD : InstrItinClass;
 def IIC_XLAT : InstrItinClass;

Modified: llvm/trunk/lib/Target/X86/X86ScheduleAtom.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ScheduleAtom.td?rev=329414&r1=329413&r2=329414&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ScheduleAtom.td (original)
+++ llvm/trunk/lib/Target/X86/X86ScheduleAtom.td Fri Apr  6 09:16:43 2018
@@ -523,12 +523,10 @@ def AtomItineraries : ProcessorItinerari
   InstrItinData<IIC_CMPXCHG_16B, [InstrStage<22, [Port0, Port1]>] >,
   InstrItinData<IIC_LODS, [InstrStage<2, [Port0, Port1]>] >,
   InstrItinData<IIC_OUTS, [InstrStage<74, [Port0, Port1]>] >,
-  InstrItinData<IIC_CLC, [InstrStage<1, [Port0, Port1]>] >,
+  InstrItinData<IIC_CLC_CMC_STC, [InstrStage<1, [Port0, Port1]>] >,
   InstrItinData<IIC_CLD, [InstrStage<3, [Port0, Port1]>] >,
   InstrItinData<IIC_CLI, [InstrStage<14, [Port0, Port1]>] >,
-  InstrItinData<IIC_CMC, [InstrStage<1, [Port0, Port1]>] >,
   InstrItinData<IIC_CLTS, [InstrStage<33, [Port0, Port1]>] >,
-  InstrItinData<IIC_STC, [InstrStage<1, [Port0, Port1]>] >,
   InstrItinData<IIC_STI, [InstrStage<17, [Port0, Port1]>] >,
   InstrItinData<IIC_STD, [InstrStage<21, [Port0, Port1]>] >,
   InstrItinData<IIC_XLAT, [InstrStage<6, [Port0, Port1]>] >,