1*2240d72fSNick Desaulniers // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify %s 2*2240d72fSNick Desaulniers x(void)3*2240d72fSNick Desaulniers__attribute__((function_return("keep"))) void x(void) {} 4*2240d72fSNick Desaulniers 5*2240d72fSNick Desaulniers // expected-warning@+1 {{'function_return' attribute argument not supported: thunk}} y(void)6*2240d72fSNick Desaulniers__attribute__((function_return("thunk"))) void y(void) {} 7*2240d72fSNick Desaulniers 8*2240d72fSNick Desaulniers // expected-warning@+1 {{'function_return' attribute argument not supported: thunk-inline}} z(void)9*2240d72fSNick Desaulniers__attribute__((function_return("thunk-inline"))) void z(void) {} 10*2240d72fSNick Desaulniers w(void)11*2240d72fSNick Desaulniers__attribute__((function_return("thunk-extern"))) void w(void) {} 12*2240d72fSNick Desaulniers 13*2240d72fSNick Desaulniers // expected-warning@+1 {{'function_return' attribute argument not supported: invalid}} v(void)14*2240d72fSNick Desaulniers__attribute__((function_return("invalid"))) void v(void) {} 15*2240d72fSNick Desaulniers 16*2240d72fSNick Desaulniers // expected-error@+1 {{'function_return' attribute requires a string}} a(void)17*2240d72fSNick Desaulniers__attribute__((function_return(5))) void a(void) {} 18*2240d72fSNick Desaulniers 19*2240d72fSNick Desaulniers // expected-error@+1 {{'function_return' attribute takes one argument}} b(void)20*2240d72fSNick Desaulniers__attribute__((function_return)) void b(void) {} 21*2240d72fSNick Desaulniers 22*2240d72fSNick Desaulniers // expected-warning@+1 {{'function_return' attribute only applies to functions}} 23*2240d72fSNick Desaulniers __attribute__((function_return)) int c; 24