From c2b786163cd0fc8facd6346d5b328ab374dd9731 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Thu, 18 Nov 2010 18:45:06 +0000 Subject: Rename ExpandPseudos to ExpandISelPseudos to help clarify its role. llvm-svn: 119716 --- llvm/lib/CodeGen/CMakeLists.txt | 2 +- llvm/lib/CodeGen/ExpandISelPseudos.cpp | 82 ++++++++++++++++++++++++++++++++++ llvm/lib/CodeGen/ExpandPseudos.cpp | 82 ---------------------------------- 3 files changed, 83 insertions(+), 83 deletions(-) create mode 100644 llvm/lib/CodeGen/ExpandISelPseudos.cpp delete mode 100644 llvm/lib/CodeGen/ExpandPseudos.cpp (limited to 'llvm/lib/CodeGen') diff --git a/llvm/lib/CodeGen/CMakeLists.txt b/llvm/lib/CodeGen/CMakeLists.txt index cfc2c9e4830..7a36c5137ae 100644 --- a/llvm/lib/CodeGen/CMakeLists.txt +++ b/llvm/lib/CodeGen/CMakeLists.txt @@ -11,7 +11,7 @@ add_llvm_library(LLVMCodeGen DwarfEHPrepare.cpp ELFCodeEmitter.cpp ELFWriter.cpp - ExpandPseudos.cpp + ExpandISelPseudos.cpp GCMetadata.cpp GCMetadataPrinter.cpp GCStrategy.cpp diff --git a/llvm/lib/CodeGen/ExpandISelPseudos.cpp b/llvm/lib/CodeGen/ExpandISelPseudos.cpp new file mode 100644 index 00000000000..b5ec303f5d9 --- /dev/null +++ b/llvm/lib/CodeGen/ExpandISelPseudos.cpp @@ -0,0 +1,82 @@ +//===-- llvm/CodeGen/ExpandISelPseudos.cpp ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Expand Psuedo-instructions produced by ISel. These are usually to allow +// the expansion to contain control flow, such as a conditional move +// implemented with a conditional branch and a phi, or an atomic operation +// implemented with a loop. +// +//===----------------------------------------------------------------------===// + +#define DEBUG_TYPE "expand-isel-pseudos" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineFunctionPass.h" +#include "llvm/CodeGen/Passes.h" +#include "llvm/Target/TargetLowering.h" +#include "llvm/Target/TargetMachine.h" +#include "llvm/Support/Debug.h" +using namespace llvm; + +namespace { + class ExpandISelPseudos : public MachineFunctionPass { + public: + static char ID; // Pass identification, replacement for typeid + ExpandISelPseudos() : MachineFunctionPass(ID) {} + + private: + virtual bool runOnMachineFunction(MachineFunction &MF); + + const char *getPassName() const { + return "Expand ISel Pseudo-instructions"; + } + + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + MachineFunctionPass::getAnalysisUsage(AU); + } + }; +} // end anonymous namespace + +char ExpandISelPseudos::ID = 0; +INITIALIZE_PASS(ExpandISelPseudos, "expand-isel-pseudos", + "Expand CodeGen Pseudo-instructions", false, false) + +FunctionPass *llvm::createExpandISelPseudosPass() { + return new ExpandISelPseudos(); +} + +bool ExpandISelPseudos::runOnMachineFunction(MachineFunction &MF) { + bool Changed = false; + const TargetLowering *TLI = MF.getTarget().getTargetLowering(); + + // Iterate through each instruction in the function, looking for pseudos. + for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) { + MachineBasicBlock *MBB = I; + for (MachineBasicBlock::iterator MBBI = MBB->begin(), MBBE = MBB->end(); + MBBI != MBBE; ) { + MachineInstr *MI = MBBI++; + + // If MI is a pseudo, expand it. + const TargetInstrDesc &TID = MI->getDesc(); + if (TID.usesCustomInsertionHook()) { + Changed = true; + MachineBasicBlock *NewMBB = + TLI->EmitInstrWithCustomInserter(MI, MBB); + // The expansion may involve new basic blocks. + if (NewMBB != MBB) { + MBB = NewMBB; + I = NewMBB; + MBBI = NewMBB->begin(); + MBBE = NewMBB->end(); + } + } + } + } + + return Changed; +} diff --git a/llvm/lib/CodeGen/ExpandPseudos.cpp b/llvm/lib/CodeGen/ExpandPseudos.cpp deleted file mode 100644 index df8d02a8005..00000000000 --- a/llvm/lib/CodeGen/ExpandPseudos.cpp +++ /dev/null @@ -1,82 +0,0 @@ -//===-- llvm/CodeGen/ExpandPseudos.cpp --------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// Expand Psuedo-instructions produced by ISel. These are usually to allow -// the expansion to contain control flow, such as a conditional move -// implemented with a conditional branch and a phi, or an atomic operation -// implemented with a loop. -// -//===----------------------------------------------------------------------===// - -#define DEBUG_TYPE "expand-pseudos" -#include "llvm/CodeGen/MachineFunction.h" -#include "llvm/CodeGen/MachineFunctionPass.h" -#include "llvm/CodeGen/Passes.h" -#include "llvm/Target/TargetLowering.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Support/Debug.h" -using namespace llvm; - -namespace { - class ExpandPseudos : public MachineFunctionPass { - public: - static char ID; // Pass identification, replacement for typeid - ExpandPseudos() : MachineFunctionPass(ID) {} - - private: - virtual bool runOnMachineFunction(MachineFunction &MF); - - const char *getPassName() const { - return "Expand CodeGen Pseudo-instructions"; - } - - virtual void getAnalysisUsage(AnalysisUsage &AU) const { - MachineFunctionPass::getAnalysisUsage(AU); - } - }; -} // end anonymous namespace - -char ExpandPseudos::ID = 0; -INITIALIZE_PASS(ExpandPseudos, "expand-pseudos", - "Expand CodeGen Pseudo-instructions", false, false) - -FunctionPass *llvm::createExpandPseudosPass() { - return new ExpandPseudos(); -} - -bool ExpandPseudos::runOnMachineFunction(MachineFunction &MF) { - bool Changed = false; - const TargetLowering *TLI = MF.getTarget().getTargetLowering(); - - // Iterate through each instruction in the function, looking for pseudos. - for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) { - MachineBasicBlock *MBB = I; - for (MachineBasicBlock::iterator MBBI = MBB->begin(), MBBE = MBB->end(); - MBBI != MBBE; ) { - MachineInstr *MI = MBBI++; - - // If MI is a pseudo, expand it. - const TargetInstrDesc &TID = MI->getDesc(); - if (TID.usesCustomInsertionHook()) { - Changed = true; - MachineBasicBlock *NewMBB = - TLI->EmitInstrWithCustomInserter(MI, MBB); - // The expansion may involve new basic blocks. - if (NewMBB != MBB) { - MBB = NewMBB; - I = NewMBB; - MBBI = NewMBB->begin(); - MBBE = NewMBB->end(); - } - } - } - } - - return Changed; -} -- cgit v1.2.3