diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp index 5129287e17c..8f41b2e7f74 100644 --- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp +++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp @@ -676,6 +676,23 @@ void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) { return; } break; + case PPC::MTOCRF: + case PPC::MTOCRF8: + if (!Subtarget.hasMFOCRF()) { + // Transform: %CR7 = MTOCRF %R3 + // Into: MTCRF mask, %R3 ;; cr7 + unsigned NewOpcode = + MI->getOpcode() == PPC::MTOCRF ? PPC::MTCRF : PPC::MTCRF8; + unsigned Mask = 0x80 >> OutContext.getRegisterInfo() + ->getEncodingValue(MI->getOperand(0).getReg()); + OutStreamer.AddComment(PPCInstPrinter:: + getRegisterName(MI->getOperand(0).getReg())); + OutStreamer.EmitInstruction(MCInstBuilder(NewOpcode) + .addImm(Mask) + .addReg(MI->getOperand(1).getReg())); + return; + } + break; case PPC::SYNC: // In Book E sync is called msync, handle this special case here... if (Subtarget.isBookE()) { |
