AMDGPU: Fix passes depending on dominator tree for no reason

[• tstellarAMD]

LGTM.

[arsenm]

r260494

lib/Target/AMDGPU/SIFoldOperands.cpp

 //===-- SIFoldOperands.cpp - Fold operands --- ----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 /// \file
 //===----------------------------------------------------------------------===//
 //
 
 #include "AMDGPU.h"
 #include "AMDGPUSubtarget.h"
 #include "SIInstrInfo.h"
 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
-#include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetMachine.h"
public:
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
   const char *getPassName() const override {
     return "SI Fold Operands";
   }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addRequired<MachineDominatorTree>();
-    AU.addPreserved<MachineDominatorTree>();
     AU.setPreservesCFG();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 };
 
 struct FoldCandidate {
   MachineInstr *UseMI;
   unsigned UseOpNo;
struct FoldCandidate {
 
   bool isImm() const {
     return !OpToFold;
   }
 };
 
 } // End anonymous namespace.
 
-INITIALIZE_PASS_BEGIN(SIFoldOperands, DEBUG_TYPE,
-                      "SI Fold Operands", false, false)
-INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
-INITIALIZE_PASS_END(SIFoldOperands, DEBUG_TYPE,
-                    "SI Fold Operands", false, false)
+INITIALIZE_PASS(SIFoldOperands, DEBUG_TYPE,
 
 char SIFoldOperands::ID = 0;
 
 char &llvm::SIFoldOperandsID = SIFoldOperands::ID;
 
 FunctionPass *llvm::createSIFoldOperandsPass() {
   return new SIFoldOperands();
 }

lib/Target/AMDGPU/SILowerI1Copies.cpp

 //===----------------------------------------------------------------------===//
 //
 
 #define DEBUG_TYPE "si-i1-copies"
 #include "AMDGPU.h"
 #include "AMDGPUSubtarget.h"
 #include "SIInstrInfo.h"
 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
-#include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Function.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Target/TargetMachine.h"
 
public:
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 
   const char *getPassName() const override {
     return "SI Lower i1 Copies";
   }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addRequired<MachineDominatorTree>();
-    AU.addPreserved<MachineDominatorTree>();
     AU.setPreservesCFG();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 };
 
 } // End anonymous namespace.
 
-INITIALIZE_PASS_BEGIN(SILowerI1Copies, DEBUG_TYPE,
-                      "SI Lower i1 Copies", false, false)
-INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
-INITIALIZE_PASS_END(SILowerI1Copies, DEBUG_TYPE,
-                    "SI Lower i1 Copies", false, false)
+INITIALIZE_PASS(SILowerI1Copies, DEBUG_TYPE,
 
 char SILowerI1Copies::ID = 0;
 
 char &llvm::SILowerI1CopiesID = SILowerI1Copies::ID;
 
 FunctionPass *llvm::createSILowerI1CopiesPass() {
   return new SILowerI1Copies();
 }