diff options
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.cpp | 19 | ||||
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.h | 1 |
2 files changed, 19 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp index 322d027..66251c0 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.cpp +++ b/lib/Target/PowerPC/PPCInstrInfo.cpp @@ -95,8 +95,25 @@ unsigned PPCInstrInfo::isLoadFromStackSlot(MachineInstr *MI, break; } return 0; - } +} +unsigned PPCInstrInfo::isStoreToStackSlot(MachineInstr *MI, + int &FrameIndex) const { + switch (MI->getOpcode()) { + default: break; + //case PPC::ST: ? + case PPC::STW: + case PPC::STFS: + case PPC::STFD: + if (MI->getOperand(1).isImmediate() && !MI->getOperand(1).getImmedValue() && + MI->getOperand(2).isFrameIndex()) { + FrameIndex = MI->getOperand(2).getFrameIndex(); + return MI->getOperand(0).getReg(); + } + break; + } + return 0; +} // commuteInstruction - We can commute rlwimi instructions, but only if the // rotate amt is zero. We also have to munge the immediates a bit. diff --git a/lib/Target/PowerPC/PPCInstrInfo.h b/lib/Target/PowerPC/PPCInstrInfo.h index d0be2d6..f046e5d 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.h +++ b/lib/Target/PowerPC/PPCInstrInfo.h @@ -40,6 +40,7 @@ public: unsigned& destReg) const; unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const; + unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const; // commuteInstruction - We can commute rlwimi instructions, but only if the // rotate amt is zero. We also have to munge the immediates a bit. |