diff options
| -rw-r--r-- | llvm/lib/Target/SparcV9/SparcV9BurgISel.cpp | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/llvm/lib/Target/SparcV9/SparcV9BurgISel.cpp b/llvm/lib/Target/SparcV9/SparcV9BurgISel.cpp index 597d319d56b..ae638c7c5f8 100644 --- a/llvm/lib/Target/SparcV9/SparcV9BurgISel.cpp +++ b/llvm/lib/Target/SparcV9/SparcV9BurgISel.cpp @@ -626,9 +626,13 @@ CreateSETUWConst(uint32_t C, int32_t sC = (int32_t) C; bool smallNegValue =isSigned && sC < 0 && sC != -sC && -sC < (int32_t)MAXSIMM; + //Create TmpInstruction for intermediate values + TmpInstruction *tmpReg; + // Set the high 22 bits in dest if non-zero and simm13 field of OR not enough if (!smallNegValue && (C & ~MAXLO) && C > MAXSIMM) { - miSETHI = BuildMI(V9::SETHI, 2).addZImm(C).addRegDef(dest); + tmpReg = new TmpInstruction(mcfi, PointerType::get(val->getType()), (Instruction*) val); + miSETHI = BuildMI(V9::SETHI, 2).addZImm(C).addRegDef(tmpReg); miSETHI->getOperand(0).markHi32(); mvec.push_back(miSETHI); } @@ -638,7 +642,7 @@ CreateSETUWConst(uint32_t C, if (miSETHI==NULL || C & MAXLO) { if (miSETHI) { // unsigned value with high-order bits set using SETHI - miOR = BuildMI(V9::ORi,3).addReg(dest).addZImm(C).addRegDef(dest); + miOR = BuildMI(V9::ORi,3).addReg(tmpReg).addZImm(C).addRegDef(dest); miOR->getOperand(1).markLo32(); } else { // unsigned or small signed value that fits in simm13 field of OR @@ -648,6 +652,8 @@ CreateSETUWConst(uint32_t C, } mvec.push_back(miOR); } + else + mvec.push_back(BuildMI(V9::ORr,3).addReg(tmpReg).addMReg(SparcV9::g0).addRegDef(dest)); assert((miSETHI || miOR) && "Oops, no code was generated!"); } @@ -662,13 +668,19 @@ static inline void CreateSETSWConst(int32_t C, Instruction* dest, std::vector<MachineInstr*>& mvec, MachineCodeForInstruction& mcfi, Value* val) { + + //TmpInstruction for intermediate values + TmpInstruction *tmpReg = new TmpInstruction(mcfi, (Instruction*) val); + // Set the low 32 bits of dest - CreateSETUWConst((uint32_t) C, dest, mvec, mcfi, val, /*isSigned*/true); + CreateSETUWConst((uint32_t) C, tmpReg, mvec, mcfi, val, /*isSigned*/true); // Sign-extend to the high 32 bits if needed. // NOTE: The value C = 0x80000000 is bad: -C == C and so -C is < MAXSIMM if (C < 0 && (C == -C || -C > (int32_t) MAXSIMM)) - mvec.push_back(BuildMI(V9::SRAi5,3).addReg(dest).addZImm(0).addRegDef(dest)); + mvec.push_back(BuildMI(V9::SRAi5,3).addReg(tmpReg).addZImm(0).addRegDef(dest)); + else + mvec.push_back(BuildMI(V9::ORr,3).addReg(tmpReg).addMReg(SparcV9::g0).addRegDef(dest)); } /// CreateSETXConst - Set a 64-bit signed or unsigned constant in the @@ -689,15 +701,21 @@ CreateSETXConst(uint64_t C, // Code to set the upper 32 bits of the value in register `tmpReg' CreateSETUWConst((C >> 32), tmpReg, mvec, mcfi, val); + //TmpInstruction for intermediate values + TmpInstruction *tmpReg2 = new TmpInstruction(mcfi, (Instruction*) val); + // Shift tmpReg left by 32 bits mvec.push_back(BuildMI(V9::SLLXi6, 3).addReg(tmpReg).addZImm(32) - .addRegDef(tmpReg)); + .addRegDef(tmpReg2)); + //TmpInstruction for intermediate values + TmpInstruction *tmpReg3 = new TmpInstruction(mcfi, (Instruction*) val); + // Code to set the low 32 bits of the value in register `dest' - CreateSETUWConst(C, dest, mvec, mcfi, val); + CreateSETUWConst(C, tmpReg3, mvec, mcfi, val); // dest = OR(tmpReg, dest) - mvec.push_back(BuildMI(V9::ORr,3).addReg(dest).addReg(tmpReg).addRegDef(dest)); + mvec.push_back(BuildMI(V9::ORr,3).addReg(tmpReg3).addReg(tmpReg2).addRegDef(dest)); } /// CreateSETUWLabel - Set a 32-bit constant (given by a symbolic label) in |
