diff options
| -rw-r--r-- | lib/Target/ARM/ARMBaseInstrInfo.cpp | 10 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMBaseInstrInfo.h | 6 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 7 |
3 files changed, 23 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp index 7c49374..cce9a8b 100644 --- a/lib/Target/ARM/ARMBaseInstrInfo.cpp +++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp @@ -816,6 +816,16 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, } } +MachineInstr* +ARMBaseInstrInfo::emitFrameIndexDebugValue(MachineFunction &MF, + unsigned FrameIx, uint64_t Offset, + const MDNode *MDPtr, + DebugLoc DL) const { + MachineInstrBuilder MIB = BuildMI(MF, DL, get(ARM::DBG_VALUE)) + .addFrameIndex(FrameIx).addImm(0).addImm(Offset).addMetadata(MDPtr); + return &*MIB; +} + MachineInstr *ARMBaseInstrInfo:: foldMemoryOperandImpl(MachineFunction &MF, MachineInstr *MI, const SmallVectorImpl<unsigned> &Ops, int FI) const { diff --git a/lib/Target/ARM/ARMBaseInstrInfo.h b/lib/Target/ARM/ARMBaseInstrInfo.h index 292c498..fb0b3af 100644 --- a/lib/Target/ARM/ARMBaseInstrInfo.h +++ b/lib/Target/ARM/ARMBaseInstrInfo.h @@ -269,6 +269,12 @@ public: unsigned DestReg, int FrameIndex, const TargetRegisterClass *RC) const; + virtual MachineInstr *emitFrameIndexDebugValue(MachineFunction &MF, + unsigned FrameIx, + uint64_t Offset, + const MDNode *MDPtr, + DebugLoc DL) const; + virtual bool canFoldMemoryOperand(const MachineInstr *MI, const SmallVectorImpl<unsigned> &Ops) const; diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index 2a4e1a8..bc12187 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -1183,6 +1183,13 @@ ARMBaseRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, SPAdj = 0; Offset += SPAdj; + // Special handling of dbg_value instructions. + if (MI.isDebugValue()) { + MI.getOperand(i). ChangeToRegister(FrameReg, false /*isDef*/); + MI.getOperand(i+1).ChangeToImmediate(Offset); + return 0; + } + // Modify MI as necessary to handle as much of 'Offset' as possible bool Done = false; if (!AFI->isThumbFunction()) |