diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsAsmPrinter.cpp | 44 | ||||
| -rw-r--r-- | llvm/test/MC/Mips/mips64shift.ll | 5 |
2 files changed, 28 insertions, 21 deletions
diff --git a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp index 00ff7545c14..3b1509d46bb 100644 --- a/llvm/lib/Target/Mips/MipsAsmPrinter.cpp +++ b/llvm/lib/Target/Mips/MipsAsmPrinter.cpp @@ -58,33 +58,37 @@ void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { return; } - // Direct object specific instruction lowering - if (!OutStreamer.hasRawTextSupport()) - switch (MI->getOpcode()) { - case Mips::DSLL: - case Mips::DSRL: - case Mips::DSRA: - assert(MI->getNumOperands() == 3 && - "Invalid no. of machine operands for shift!"); - assert(MI->getOperand(2).isImm()); - int64_t Shift = MI->getOperand(2).getImm(); - if (Shift > 31) { - MCInst TmpInst0; - MCInstLowering.LowerLargeShift(MI, TmpInst0, Shift - 32); - OutStreamer.EmitInstruction(TmpInst0); - return; - } - break; - } - MachineBasicBlock::const_instr_iterator I = MI; MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end(); do { MCInst TmpInst0; + + // Direct object specific instruction lowering + if (!OutStreamer.hasRawTextSupport()) + switch (I->getOpcode()) { + // If shift amount is >= 32 it the inst needs to be lowered further + case Mips::DSLL: + case Mips::DSRL: + case Mips::DSRA: + { + assert(I->getNumOperands() == 3 && + "Invalid no. of machine operands for shift!"); + assert(I->getOperand(2).isImm()); + int64_t Shift = I->getOperand(2).getImm(); + if (Shift > 31) { + MCInst TmpInst0; + MCInstLowering.LowerLargeShift(I, TmpInst0, Shift - 32); + OutStreamer.EmitInstruction(TmpInst0); + return; + } + } + } + MCInstLowering.Lower(I++, TmpInst0); OutStreamer.EmitInstruction(TmpInst0); - } while ((I != E) && I->isInsideBundle()); + + } while ((I != E) && I->isInsideBundle()); // Delay slot check } //===----------------------------------------------------------------------===// diff --git a/llvm/test/MC/Mips/mips64shift.ll b/llvm/test/MC/Mips/mips64shift.ll index e1c18576de0..99cac7b591f 100644 --- a/llvm/test/MC/Mips/mips64shift.ll +++ b/llvm/test/MC/Mips/mips64shift.ll @@ -1,5 +1,8 @@ -; RUN: llc -march=mips64el -filetype=obj -mcpu=mips64r2 -disable-mips-delay-filler %s -o - | llvm-objdump -disassemble -triple mips64el - | FileCheck %s +; RUN: llc -march=mips64el -filetype=obj -mcpu=mips64r2 -disable-mips-delay-filler %s -o - \ +; RUN: | llvm-objdump -disassemble -triple mips64el - | FileCheck %s +; RUN: llc -march=mips64el -filetype=obj -mcpu=mips64r2 %s -o - \ +; RUN: | llvm-objdump -disassemble -triple mips64el - | FileCheck %s define i64 @f3(i64 %a0) nounwind readnone { entry: |
