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-rw-r--r--llvm/lib/Target/SystemZ/SystemZElimCompare.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp b/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
index 1ea02984f3d..ce99ee5bc41 100644
--- a/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZElimCompare.cpp
@@ -47,7 +47,7 @@ struct Reference {
return *this;
}
- operator bool() const { return Def || Use; }
+ LLVM_EXPLICIT operator bool() const { return Def || Use; }
// True if the register is defined or used in some form, either directly or
// via a sub- or super-register.
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