diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index b5881309b20..3c12fa17356 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -903,20 +903,16 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI, ? X86::LEA64_32r : X86::LEA32r; unsigned leaInReg = RegInfo.createVirtualRegister(&X86::GR32RegClass); unsigned leaOutReg = RegInfo.createVirtualRegister(&X86::GR32RegClass); - - // Build and insert into an implicit UNDEF value. This is OK because - // well be shifting and then extracting the lower 16-bits. - MachineInstr *Ins = - BuildMI(get(X86::INSERT_SUBREG),leaInReg).addImm(X86::IMPL_VAL_UNDEF) - .addReg(Src).addImm(X86::SUBREG_16BIT); + + MachineInstr *Ins = + BuildMI(get(X86::INSERT_SUBREG), leaInReg).addReg(Src).addImm(2); Ins->copyKillDeadInfo(MI); NewMI = BuildMI(get(Opc), leaOutReg) .addReg(0).addImm(1 << ShAmt).addReg(leaInReg).addImm(0); MachineInstr *Ext = - BuildMI(get(X86::EXTRACT_SUBREG), Dest) - .addReg(leaOutReg).addImm(X86::SUBREG_16BIT); + BuildMI(get(X86::EXTRACT_SUBREG), Dest).addReg(leaOutReg).addImm(2); Ext->copyKillDeadInfo(MI); MFI->insert(MBBI, Ins); // Insert the insert_subreg |
