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| author | Richard Osborne <richard@xmos.com> | 2011-07-14 14:03:48 +0000 |
|---|---|---|
| committer | Richard Osborne <richard@xmos.com> | 2011-07-14 14:03:48 +0000 |
| commit | c7e33965f0690d407d2ec2dc8036a58af94c0542 (patch) | |
| tree | 5c8333bfdc57e77226059c66c1f3ae7969c21653 /lib/Target/XCore/XCoreRegisterInfo.cpp | |
| parent | d155945f15f73eb5619756d94e69b5bc5319d89a (diff) | |
| download | llvm-c7e33965f0690d407d2ec2dc8036a58af94c0542.tar.gz llvm-c7e33965f0690d407d2ec2dc8036a58af94c0542.tar.bz2 llvm-c7e33965f0690d407d2ec2dc8036a58af94c0542.tar.xz | |
Update XCoreRegisterInfo::eliminateFrameIndex() to handle DBG_VALUE
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135146 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/XCore/XCoreRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/XCore/XCoreRegisterInfo.cpp | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/lib/Target/XCore/XCoreRegisterInfo.cpp b/lib/Target/XCore/XCoreRegisterInfo.cpp index 2bf43b40ba..0aa7d5fb3e 100644 --- a/lib/Target/XCore/XCoreRegisterInfo.cpp +++ b/lib/Target/XCore/XCoreRegisterInfo.cpp @@ -196,7 +196,16 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, #endif Offset += StackSize; - + + unsigned FrameReg = getFrameRegister(MF); + + // Special handling of DBG_VALUE instructions. + if (MI.isDebugValue()) { + MI.getOperand(i).ChangeToRegister(FrameReg, false /*isDef*/); + MI.getOperand(i+1).ChangeToImmediate(Offset); + return; + } + // fold constant into offset. Offset += MI.getOperand(i + 1).getImm(); MI.getOperand(i + 1).ChangeToImmediate(0); @@ -208,7 +217,7 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, Offset/=4; bool FP = TFI->hasFP(MF); - + unsigned Reg = MI.getOperand(0).getReg(); bool isKill = MI.getOpcode() == XCore::STWFI && MI.getOperand(0).isKill(); @@ -219,7 +228,6 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, if (FP) { bool isUs = isImmUs(Offset); - unsigned FramePtr = XCore::R10; if (!isUs) { if (!RS) @@ -231,18 +239,18 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, switch (MI.getOpcode()) { case XCore::LDWFI: BuildMI(MBB, II, dl, TII.get(XCore::LDW_3r), Reg) - .addReg(FramePtr) + .addReg(FrameReg) .addReg(ScratchReg, RegState::Kill); break; case XCore::STWFI: BuildMI(MBB, II, dl, TII.get(XCore::STW_3r)) .addReg(Reg, getKillRegState(isKill)) - .addReg(FramePtr) + .addReg(FrameReg) .addReg(ScratchReg, RegState::Kill); break; case XCore::LDAWFI: BuildMI(MBB, II, dl, TII.get(XCore::LDAWF_l3r), Reg) - .addReg(FramePtr) + .addReg(FrameReg) .addReg(ScratchReg, RegState::Kill); break; default: @@ -252,18 +260,18 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, switch (MI.getOpcode()) { case XCore::LDWFI: BuildMI(MBB, II, dl, TII.get(XCore::LDW_2rus), Reg) - .addReg(FramePtr) + .addReg(FrameReg) .addImm(Offset); break; case XCore::STWFI: BuildMI(MBB, II, dl, TII.get(XCore::STW_2rus)) .addReg(Reg, getKillRegState(isKill)) - .addReg(FramePtr) + .addReg(FrameReg) .addImm(Offset); break; case XCore::LDAWFI: BuildMI(MBB, II, dl, TII.get(XCore::LDAWF_l2rus), Reg) - .addReg(FramePtr) + .addReg(FrameReg) .addImm(Offset); break; default: |