diff options
Diffstat (limited to 'llvm/lib/Target/BPF/BPFMIPeephole.cpp')
| -rw-r--r-- | llvm/lib/Target/BPF/BPFMIPeephole.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/BPF/BPFMIPeephole.cpp b/llvm/lib/Target/BPF/BPFMIPeephole.cpp index df870314fffe..354980e4bf3c 100644 --- a/llvm/lib/Target/BPF/BPFMIPeephole.cpp +++ b/llvm/lib/Target/BPF/BPFMIPeephole.cpp @@ -475,6 +475,9 @@ bool BPFMIPeepholeTruncElim::eliminateTruncSeq(void) { if (MI.getOpcode() == BPF::SRL_ri && MI.getOperand(2).getImm() == 32) { SrcReg = MI.getOperand(1).getReg(); + if (!MRI->hasOneNonDBGUse(SrcReg)) + continue; + MI2 = MRI->getVRegDef(SrcReg); DstReg = MI.getOperand(0).getReg(); |