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| author | Aditya Nandakumar <aditya_nandakumar@apple.com> | 2017-05-12 22:54:52 +0000 |
|---|---|---|
| committer | Aditya Nandakumar <aditya_nandakumar@apple.com> | 2017-05-12 22:54:52 +0000 |
| commit | 2a735421d1aace9d64c4ee7adc1f905974311db3 (patch) | |
| tree | d7af7e68e4f9be539ccb5484227eaccf04a25b50 /llvm/lib/CodeGen | |
| parent | 479ddd20fc60dfb57d1f92188277acea91370a5b (diff) | |
| download | bcm5719-llvm-2a735421d1aace9d64c4ee7adc1f905974311db3.tar.gz bcm5719-llvm-2a735421d1aace9d64c4ee7adc1f905974311db3.zip | |
[GISel]: Add a getConstantFPVRegVal utility
This might be useful across various GISel Passes
https://reviews.llvm.org/D33051
llvm-svn: 302964
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/Utils.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/Utils.cpp b/llvm/lib/CodeGen/GlobalISel/Utils.cpp index 3c93f8123b0..254bdf10d80 100644 --- a/llvm/lib/CodeGen/GlobalISel/Utils.cpp +++ b/llvm/lib/CodeGen/GlobalISel/Utils.cpp @@ -110,3 +110,11 @@ Optional<int64_t> llvm::getConstantVRegVal(unsigned VReg, return None; } + +const llvm::ConstantFP* llvm::getConstantFPVRegVal(unsigned VReg, + const MachineRegisterInfo &MRI) { + MachineInstr *MI = MRI.getVRegDef(VReg); + if (TargetOpcode::G_FCONSTANT != MI->getOpcode()) + return nullptr; + return MI->getOperand(1).getFPImm(); +} |
