[AMDGPU][R600] Move R600CodeGenPassBuilder into R600TargetMachine(NFC). (#103721)

Author: cdevadas

llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp

@@ -32,7 +32,6 @@
 #include "GCNSchedStrategy.h"
 #include "GCNVOPDUtils.h"
 #include "R600.h"
-#include "R600MachineFunctionInfo.h"
 #include "R600TargetMachine.h"
 #include "SIFixSGPRCopies.h"
 #include "SIMachineFunctionInfo.h"
@@ -1214,13 +1213,6 @@ AMDGPUPassConfig::createMachineScheduler(MachineSchedContext *C) const {
   return DAG;
 }
 
-MachineFunctionInfo *R600TargetMachine::createMachineFunctionInfo(
-    BumpPtrAllocator &Allocator, const Function &F,
-    const TargetSubtargetInfo *STI) const {
-  return R600MachineFunctionInfo::create<R600MachineFunctionInfo>(
-      Allocator, F, static_cast<const R600Subtarget *>(STI));
-}
-
 //===----------------------------------------------------------------------===//
 // GCN Legacy Pass Setup
 //===----------------------------------------------------------------------===//

llvm/lib/Target/AMDGPU/CMakeLists.txt

@@ -121,7 +121,6 @@ add_llvm_target(AMDGPUCodeGen
   GCNVOPDUtils.cpp
   R600AsmPrinter.cpp
   R600ClauseMergePass.cpp
-  R600CodeGenPassBuilder.cpp
   R600ControlFlowFinalizer.cpp
   R600EmitClauseMarkers.cpp
   R600ExpandSpecialInstrs.cpp

llvm/lib/Target/AMDGPU/R600CodeGenPassBuilder.cpp

@@ -15,7 +15,6 @@
 #include "AMDGPU.h"
 #include "MCTargetDesc/R600MCTargetDesc.h"
 #include "R600Defines.h"
-#include "R600InstrInfo.h"
 #include "R600MachineFunctionInfo.h"
 #include "R600Subtarget.h"
 #include "R600TargetMachine.h"

llvm/lib/Target/AMDGPU/R600CodeGenPassBuilder.h

@@ -7,14 +7,16 @@
 //===----------------------------------------------------------------------===//
 //
 /// \file
-/// The AMDGPU-R600 target machine contains all of the hardware specific
-/// information  needed to emit code for R600 GPUs.
+/// This file contains both AMDGPU-R600 target machine and the CodeGen pass
+/// builder. The target machine contains all of the hardware specific
+/// information needed to emit code for R600 GPUs and the CodeGen pass builder
+/// handles the pass pipeline for new pass manager.
 //
 //===----------------------------------------------------------------------===//
 
 #include "R600TargetMachine.h"
 #include "R600.h"
-#include "R600CodeGenPassBuilder.h"
+#include "R600MachineFunctionInfo.h"
 #include "R600MachineScheduler.h"
 #include "R600TargetTransformInfo.h"
 #include "llvm/Transforms/Scalar.h"
@@ -152,3 +154,35 @@ Error R600TargetMachine::buildCodeGenPipeline(
   R600CodeGenPassBuilder CGPB(*this, Opts, PIC);
   return CGPB.buildPipeline(MPM, Out, DwoOut, FileType);
 }
+
+MachineFunctionInfo *R600TargetMachine::createMachineFunctionInfo(
+    BumpPtrAllocator &Allocator, const Function &F,
+    const TargetSubtargetInfo *STI) const {
+  return R600MachineFunctionInfo::create<R600MachineFunctionInfo>(
+      Allocator, F, static_cast<const R600Subtarget *>(STI));
+}
+
+//===----------------------------------------------------------------------===//
+// R600 CodeGen Pass Builder interface.
+//===----------------------------------------------------------------------===//
+
+R600CodeGenPassBuilder::R600CodeGenPassBuilder(
+    R600TargetMachine &TM, const CGPassBuilderOption &Opts,
+    PassInstrumentationCallbacks *PIC)
+    : CodeGenPassBuilder(TM, Opts, PIC) {
+  Opt.RequiresCodeGenSCCOrder = true;
+}
+
+void R600CodeGenPassBuilder::addPreISel(AddIRPass &addPass) const {
+  // TODO: Add passes pre instruction selection.
+}
+
+void R600CodeGenPassBuilder::addAsmPrinter(AddMachinePass &addPass,
+                                           CreateMCStreamer) const {
+  // TODO: Add AsmPrinter.
+}
+
+Error R600CodeGenPassBuilder::addInstSelector(AddMachinePass &) const {
+  // TODO: Add instruction selector.
+  return Error::success();
+}

llvm/lib/Target/AMDGPU/R600ISelLowering.cpp

@@ -55,6 +55,21 @@ class R600TargetMachine final : public AMDGPUTargetMachine {
                             const TargetSubtargetInfo *STI) const override;
 };
 
+//===----------------------------------------------------------------------===//
+// R600 CodeGen Pass Builder interface.
+//===----------------------------------------------------------------------===//
+
+class R600CodeGenPassBuilder
+    : public CodeGenPassBuilder<R600CodeGenPassBuilder, R600TargetMachine> {
+public:
+  R600CodeGenPassBuilder(R600TargetMachine &TM, const CGPassBuilderOption &Opts,
+                         PassInstrumentationCallbacks *PIC);
+
+  void addPreISel(AddIRPass &addPass) const;
+  void addAsmPrinter(AddMachinePass &, CreateMCStreamer) const;
+  Error addInstSelector(AddMachinePass &) const;
+};
+
 } // end namespace llvm
 
 #endif // LLVM_LIB_TARGET_AMDGPU_R600TARGETMACHINE_H