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-rw-r--r--llvm/lib/Target/Mips/MipsISelLowering.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 906c9a9555f..eb460ca3797 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -4008,11 +4008,13 @@ MipsTargetLowering::getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI,
}
}
- std::pair<unsigned, const TargetRegisterClass *> R;
- R = parseRegForInlineAsmConstraint(Constraint, VT);
+ if (!Constraint.empty()) {
+ std::pair<unsigned, const TargetRegisterClass *> R;
+ R = parseRegForInlineAsmConstraint(Constraint, VT);
- if (R.second)
- return R;
+ if (R.second)
+ return R;
+ }
return TargetLowering::getRegForInlineAsmConstraint(TRI, Constraint, VT);
}
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