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-rw-r--r--clang/test/Sema/builtin-setjmp.c10
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diff --git a/clang/test/Sema/builtin-setjmp.c b/clang/test/Sema/builtin-setjmp.c
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+++ b/clang/test/Sema/builtin-setjmp.c
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+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify -DNO_JMP_BUF %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsyntax-only -verify %s
+
+#ifdef NO_JMP_BUF
+extern long setjmp(long *); // expected-warning {{declaration of built-in function 'setjmp' requires the declaration of the 'jmp_buf' type, commonly provided in the header <setjmp.h>.}}
+#else
+typedef long jmp_buf;
+extern int setjmp(char); // expected-warning@8 {{incompatible redeclaration of library function 'setjmp'}}
+ // expected-note@8 {{'setjmp' is a builtin with type 'int (jmp_buf)' (aka 'int (long)')}}
+#endif
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