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-rw-r--r--llvm/lib/MC/MCParser/AsmParser.cpp5
-rw-r--r--llvm/test/MC/AsmParser/macro-args.s10
2 files changed, 15 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp
index bd5956f9b48..41ad1642d28 100644
--- a/llvm/lib/MC/MCParser/AsmParser.cpp
+++ b/llvm/lib/MC/MCParser/AsmParser.cpp
@@ -1528,6 +1528,11 @@ bool AsmParser::HandleMacroEntry(StringRef Name, SMLoc NameLoc,
}
Lex();
}
+ // If there weren't any arguments, erase the token vector so everything
+ // else knows that. Leaving around the vestigal empty token list confuses
+ // things.
+ if (MacroArguments.size() == 1 && MacroArguments.back().empty())
+ MacroArguments.clear();
// Macro instantiation is lexical, unfortunately. We construct a new buffer
// to hold the macro body with substitutions.
diff --git a/llvm/test/MC/AsmParser/macro-args.s b/llvm/test/MC/AsmParser/macro-args.s
index 808b6eb4880..4b878999e42 100644
--- a/llvm/test/MC/AsmParser/macro-args.s
+++ b/llvm/test/MC/AsmParser/macro-args.s
@@ -8,3 +8,13 @@
GET is_sse, %eax
// CHECK: movl is_sse@GOTOFF(%ebx), %eax
+
+.macro bar
+ .long $n
+.endm
+
+bar 1, 2, 3
+bar
+
+// CHECK: .long 3
+// CHECK: .long 0
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