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/* { dg-do compile { target musttail } } */ float f1(void); int f2(void) { __attribute__((musttail)) return f1 (); /* { dg-error "changed after call" } */ } int f3(int *); int f4(int *p) { int x; (void) p; __attribute__((musttail)) return f3(&x); /* { dg-warning "address of automatic variable 'x' passed to 'musttail' call argument" } */ }