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-rw-r--r--test/Assembler/musttail.ll14
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diff --git a/test/Assembler/musttail.ll b/test/Assembler/musttail.ll
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+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
+
+; Check that the ellipsis round trips.
+
+%struct.A = type { i32 }
+
+declare i8* @f(i8*, ...)
+
+define i8* @f_thunk(i8* %this, ...) {
+ %rv = musttail call i8* (i8*, ...)* @f(i8* %this, ...)
+ ret i8* %rv
+}
+; CHECK-LABEL: define i8* @f_thunk(i8* %this, ...)
+; CHECK: %rv = musttail call i8* (i8*, ...)* @f(i8* %this, ...)