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-rw-r--r--lib/Sema/SemaStmtAsm.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Sema/SemaStmtAsm.cpp b/lib/Sema/SemaStmtAsm.cpp
index 18616ee226..33eb565b43 100644
--- a/lib/Sema/SemaStmtAsm.cpp
+++ b/lib/Sema/SemaStmtAsm.cpp
@@ -536,6 +536,8 @@ StmtResult Sema::ActOnMSAsmStmt(SourceLocation AsmLoc, SourceLocation LBraceLoc,
SmallString<128> OpcodeStr;
for (unsigned i = 0, e = IDVal.size(); i != e; ++i)
OpcodeStr.push_back(tolower(IDVal[i]));
+ // FIXME: Convert to a StmtError.
+ assert(TargetParser->mnemonicIsValid(OpcodeStr) && "Invalid mnemonic!");
// Parse the operands.
llvm::SMLoc IDLoc;