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| author | Craig Topper <craig.topper@gmail.com> | 2020-01-13 22:02:45 -0800 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2020-01-13 22:02:45 -0800 |
| commit | b1dcd84c7ea3c97ddd73f629441be24791f23624 (patch) | |
| tree | 7a81dc3a62e380e5a8d48badaf0bcea6cfff871e /llvm/lib | |
| parent | 1768ed7f8b1f53b5b4b3ff80da6ae2dce22b74a9 (diff) | |
| download | bcm5719-llvm-b1dcd84c7ea3c97ddd73f629441be24791f23624.tar.gz bcm5719-llvm-b1dcd84c7ea3c97ddd73f629441be24791f23624.zip | |
[X86] Copy the nofpexcept flag when folding a load into an instruction using the load folding tables./
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index f41a27aba3f..245346d8273 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -4704,6 +4704,10 @@ static MachineInstr *FuseInst(MachineFunction &MF, unsigned Opcode, updateOperandRegConstraints(MF, *NewMI, TII); + // Copy the NoFPExcept flag from the instruction we're fusing. + if (MI.getFlag(MachineInstr::MIFlag::NoFPExcept)) + NewMI->setFlag(MachineInstr::MIFlag::NoFPExcept); + MachineBasicBlock *MBB = InsertPt->getParent(); MBB->insert(InsertPt, NewMI); |
