diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 4e972592bf..bcbebcd45d 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -1634,7 +1634,8 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, // Moving EFLAGS to / from another register requires a push and a pop. if (SrcRC == &X86::CCRRegClass) { - assert(SrcReg == X86::EFLAGS); + if (SrcReg != X86::EFLAGS) + return false; if (DestRC == &X86::GR64RegClass) { BuildMI(MBB, MI, get(X86::PUSHFQ)); BuildMI(MBB, MI, get(X86::POP64r), DestReg); @@ -1645,7 +1646,8 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, return true; } } else if (DestRC == &X86::CCRRegClass) { - assert(DestReg == X86::EFLAGS); + if (DestReg != X86::EFLAGS) + return false; if (SrcRC == &X86::GR64RegClass) { BuildMI(MBB, MI, get(X86::PUSH64r)).addReg(SrcReg); BuildMI(MBB, MI, get(X86::POPFQ)); @@ -1670,7 +1672,8 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, else if (DestRC == &X86::RFP64RegClass) Opc = isST0 ? X86::FpGET_ST0_64 : X86::FpGET_ST1_64; else { - assert(DestRC == &X86::RFP80RegClass); + if (DestRC != &X86::RFP80RegClass) + return false; Opc = isST0 ? X86::FpGET_ST0_80 : X86::FpGET_ST1_80; } BuildMI(MBB, MI, get(Opc), DestReg); @@ -1689,7 +1692,8 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, else if (SrcRC == &X86::RFP64RegClass) Opc = X86::FpSET_ST0_64; else { - assert(SrcRC == &X86::RFP80RegClass); + if (SrcRC != &X86::RFP80RegClass) + return false; Opc = X86::FpSET_ST0_80; } BuildMI(MBB, MI, get(Opc)).addReg(SrcReg); |