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-rw-r--r--contrib/llvm/lib/Target/R600/SILowerI1Copies.cpp151
1 files changed, 0 insertions, 151 deletions
diff --git a/contrib/llvm/lib/Target/R600/SILowerI1Copies.cpp b/contrib/llvm/lib/Target/R600/SILowerI1Copies.cpp
deleted file mode 100644
index 67421e2..0000000
--- a/contrib/llvm/lib/Target/R600/SILowerI1Copies.cpp
+++ /dev/null
@@ -1,151 +0,0 @@
-//===-- SILowerI1Copies.cpp - Lower I1 Copies -----------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-/// i1 values are usually inserted by the CFG Structurize pass and they are
-/// unique in that they can be copied from VALU to SALU registers.
-/// This is not possible for any other value type. Since there are no
-/// MOV instructions for i1, we to use V_CMP_* and V_CNDMASK to move the i1.
-///
-//===----------------------------------------------------------------------===//
-//
-
-#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"
-
-using namespace llvm;
-
-namespace {
-
-class SILowerI1Copies : public MachineFunctionPass {
-public:
- static char ID;
-
-public:
- SILowerI1Copies() : MachineFunctionPass(ID) {
- initializeSILowerI1CopiesPass(*PassRegistry::getPassRegistry());
- }
-
- 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.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)
-
-char SILowerI1Copies::ID = 0;
-
-char &llvm::SILowerI1CopiesID = SILowerI1Copies::ID;
-
-FunctionPass *llvm::createSILowerI1CopiesPass() {
- return new SILowerI1Copies();
-}
-
-bool SILowerI1Copies::runOnMachineFunction(MachineFunction &MF) {
- MachineRegisterInfo &MRI = MF.getRegInfo();
- const SIInstrInfo *TII =
- static_cast<const SIInstrInfo *>(MF.getSubtarget().getInstrInfo());
- const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
- std::vector<unsigned> I1Defs;
-
- for (MachineFunction::iterator BI = MF.begin(), BE = MF.end();
- BI != BE; ++BI) {
-
- MachineBasicBlock &MBB = *BI;
- MachineBasicBlock::iterator I, Next;
- for (I = MBB.begin(); I != MBB.end(); I = Next) {
- Next = std::next(I);
- MachineInstr &MI = *I;
-
- if (MI.getOpcode() == AMDGPU::IMPLICIT_DEF) {
- unsigned Reg = MI.getOperand(0).getReg();
- const TargetRegisterClass *RC = MRI.getRegClass(Reg);
- if (RC == &AMDGPU::VReg_1RegClass)
- MRI.setRegClass(Reg, &AMDGPU::SReg_64RegClass);
- continue;
- }
-
- if (MI.getOpcode() != AMDGPU::COPY)
- continue;
-
- const MachineOperand &Dst = MI.getOperand(0);
- const MachineOperand &Src = MI.getOperand(1);
-
- if (!TargetRegisterInfo::isVirtualRegister(Src.getReg()) ||
- !TargetRegisterInfo::isVirtualRegister(Dst.getReg()))
- continue;
-
- const TargetRegisterClass *DstRC = MRI.getRegClass(Dst.getReg());
- const TargetRegisterClass *SrcRC = MRI.getRegClass(Src.getReg());
-
- if (DstRC == &AMDGPU::VReg_1RegClass &&
- TRI->getCommonSubClass(SrcRC, &AMDGPU::SGPR_64RegClass)) {
- I1Defs.push_back(Dst.getReg());
- DebugLoc DL = MI.getDebugLoc();
-
- MachineInstr *DefInst = MRI.getUniqueVRegDef(Src.getReg());
- if (DefInst->getOpcode() == AMDGPU::S_MOV_B64) {
- if (DefInst->getOperand(1).isImm()) {
- I1Defs.push_back(Dst.getReg());
-
- int64_t Val = DefInst->getOperand(1).getImm();
- assert(Val == 0 || Val == -1);
-
- BuildMI(MBB, &MI, DL, TII->get(AMDGPU::V_MOV_B32_e32))
- .addOperand(Dst)
- .addImm(Val);
- MI.eraseFromParent();
- continue;
- }
- }
-
- BuildMI(MBB, &MI, DL, TII->get(AMDGPU::V_CNDMASK_B32_e64))
- .addOperand(Dst)
- .addImm(0)
- .addImm(-1)
- .addOperand(Src);
- MI.eraseFromParent();
- } else if (TRI->getCommonSubClass(DstRC, &AMDGPU::SGPR_64RegClass) &&
- SrcRC == &AMDGPU::VReg_1RegClass) {
- BuildMI(MBB, &MI, MI.getDebugLoc(), TII->get(AMDGPU::V_CMP_NE_I32_e64))
- .addOperand(Dst)
- .addOperand(Src)
- .addImm(0);
- MI.eraseFromParent();
- }
- }
- }
-
- for (unsigned Reg : I1Defs)
- MRI.setRegClass(Reg, &AMDGPU::VGPR_32RegClass);
-
- return false;
-}
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