diff options
Diffstat (limited to 'lib/Target/PowerPC/PPCRegisterInfo.cpp')
-rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index 1ccc859901..6d564b9ba4 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -149,14 +149,21 @@ MachineInstr *PPC32RegisterInfo::foldMemoryOperand(MachineInstr *MI, unsigned InReg = MI->getOperand(1).getReg(); return addFrameReference(BuildMI(PPC::STW, 3).addReg(InReg), FrameIndex); - } else { + } else { // move -> load unsigned OutReg = MI->getOperand(0).getReg(); return addFrameReference(BuildMI(PPC::LWZ, 2, OutReg), FrameIndex); } } else if (Opc == PPC::FMR) { - // FIXME: We would be able to fold this, but we don't know whether to use a - // 32- or 64-bit load/store :(. + // We currently always spill FP values as doubles. :( + if (OpNum == 0) { // move -> store + unsigned InReg = MI->getOperand(1).getReg(); + return addFrameReference(BuildMI(PPC::STFD, + 3).addReg(InReg), FrameIndex); + } else { // move -> load + unsigned OutReg = MI->getOperand(0).getReg(); + return addFrameReference(BuildMI(PPC::LFD, 2, OutReg), FrameIndex); + } } return 0; } |