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-rw-r--r--test/Integer/testvarargs_bt.ll15
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diff --git a/test/Integer/testvarargs_bt.ll b/test/Integer/testvarargs_bt.ll
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+; RUN: llvm-as %s -o - | llvm-dis > %t1.ll
+; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+
+implementation
+
+declare i31 "printf"(i8*, ...) ;; Prototype for: i32 __builtin_printf(const char*, ...)
+
+define i31 "testvarar"()
+begin
+ call i31(i8*, ...) *%printf(i8 * null, i31 12, i8 42);
+ ret i31 %0
+end
+
+