[AMDGPU] Initialize instruction itinerary from GCNSubtarget

I need to use it in the GCN codegen.

Differential Revision: https://reviews.llvm.org/D52123

llvm-svn: 342400

2 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
index 8124e063a87..d34834329b5 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
@@ -149,6 +149,7 @@ GCNSubtarget::GCNSubtarget(const Triple &TT, StringRef GPU, StringRef FS,
     TargetTriple(TT),
     Gen(SOUTHERN_ISLANDS),
     IsaVersion(ISAVersion0_0_0),
+    InstrItins(getInstrItineraryForCPU(GPU)),
     LDSBankCount(0),
     MaxPrivateElementSize(0),
 
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
index 19974712e2f..8bd6415c995 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
@@ -297,6 +297,7 @@ protected:
   Triple TargetTriple;
   unsigned Gen;
   unsigned IsaVersion;
+  InstrItineraryData InstrItins;
   int LDSBankCount;
   unsigned MaxPrivateElementSize;
 
@@ -420,6 +421,10 @@ public:
     return &TSInfo;
   }
 
+  const InstrItineraryData *getInstrItineraryData() const override {
+    return &InstrItins;
+  }
+
   void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
 
   Generation getGeneration() const {