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-rw-r--r--llvm/utils/TableGen/AsmWriterEmitter.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/utils/TableGen/AsmWriterEmitter.cpp b/llvm/utils/TableGen/AsmWriterEmitter.cpp
index 2c21965a034..c4812dcae6d 100644
--- a/llvm/utils/TableGen/AsmWriterEmitter.cpp
+++ b/llvm/utils/TableGen/AsmWriterEmitter.cpp
@@ -544,7 +544,7 @@ void AsmWriterEmitter::EmitGetRegisterName(raw_ostream &O) {
O << " const unsigned *RegAsmOffset;\n"
<< " const char *AsmStrs;\n"
<< " switch(AltIdx) {\n"
- << " default: assert(0 && \"Invalid register alt name index!\");\n";
+ << " default: llvm_unreachable(\"Invalid register alt name index!\");\n";
for (unsigned i = 0, e = AltNameIndices.size(); i < e; ++i) {
StringRef Namespace = AltNameIndices[1]->getValueAsString("Namespace");
StringRef AltName(AltNameIndices[i]->getName());
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