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| author | Amara Emerson <aemerson@apple.com> | 2019-06-06 07:33:47 +0000 |
|---|---|---|
| committer | Amara Emerson <aemerson@apple.com> | 2019-06-06 07:33:47 +0000 |
| commit | d940e20051baf8b913e72a6f2e2c045f05c230d5 (patch) | |
| tree | 547f11cabd2f8cd780d1385844b2b70a4ed887f3 /llvm/lib | |
| parent | c1867557d93d622f761b57af6e66e3e518bc0b9f (diff) | |
| download | bcm5719-llvm-d940e20051baf8b913e72a6f2e2c045f05c230d5.tar.gz bcm5719-llvm-d940e20051baf8b913e72a6f2e2c045f05c230d5.zip | |
[AArch64][GlobalISel] Add the new changes to fix PR42129 that were supposed to go into r362666.
The changes weren't staged so ended up just re-commiting the unmodified reverted change.
llvm-svn: 362677
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp index c9af8fa1d65..288ef2abed2 100644 --- a/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp +++ b/llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp @@ -2854,6 +2854,11 @@ bool AArch64InstructionSelector::tryOptSelect(MachineInstr &I) const { if (Opc != TargetOpcode::COPY && Opc != TargetOpcode::G_TRUNC) break; + // Can't see past copies from physregs. + if (Opc == TargetOpcode::COPY && + TargetRegisterInfo::isPhysicalRegister(CondDef->getOperand(1).getReg())) + return false; + CondDef = MRI.getVRegDef(CondDef->getOperand(1).getReg()); } |
