1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 %s -fsyntax-only -verify -triple=x86_64-apple-darwin10 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc #define CHECK_SIZE(name, size) extern int name##1[sizeof(name) == size ? 1 : -1]; 4*f4a2713aSLionel Sambuc #define CHECK_ALIGN(name, size) extern int name##2[__alignof(name) == size ? 1 : -1]; 5*f4a2713aSLionel Sambuc 6*f4a2713aSLionel Sambuc // Simple tests. 7*f4a2713aSLionel Sambuc struct Test1 { 8*f4a2713aSLionel Sambuc char c : 9; // expected-warning {{size of bit-field 'c' (9 bits) exceeds the size of its type; value will be truncated to 8 bits}} 9*f4a2713aSLionel Sambuc }; 10*f4a2713aSLionel Sambuc CHECK_SIZE(Test1, 2); 11*f4a2713aSLionel Sambuc CHECK_ALIGN(Test1, 1); 12*f4a2713aSLionel Sambuc 13*f4a2713aSLionel Sambuc struct Test2 { 14*f4a2713aSLionel Sambuc char c : 16; // expected-warning {{size of bit-field 'c' (16 bits) exceeds the size of its type; value will be truncated to 8 bits}} 15*f4a2713aSLionel Sambuc }; 16*f4a2713aSLionel Sambuc CHECK_SIZE(Test2, 2); 17*f4a2713aSLionel Sambuc CHECK_ALIGN(Test2, 2); 18*f4a2713aSLionel Sambuc 19*f4a2713aSLionel Sambuc struct Test3 { 20*f4a2713aSLionel Sambuc char c : 32; // expected-warning {{size of bit-field 'c' (32 bits) exceeds the size of its type; value will be truncated to 8 bits}} 21*f4a2713aSLionel Sambuc }; 22*f4a2713aSLionel Sambuc CHECK_SIZE(Test3, 4); 23*f4a2713aSLionel Sambuc CHECK_ALIGN(Test3, 4); 24*f4a2713aSLionel Sambuc 25*f4a2713aSLionel Sambuc struct Test4 { 26*f4a2713aSLionel Sambuc char c : 64; // expected-warning {{size of bit-field 'c' (64 bits) exceeds the size of its type; value will be truncated to 8 bits}} 27*f4a2713aSLionel Sambuc }; 28*f4a2713aSLionel Sambuc CHECK_SIZE(Test4, 8); 29*f4a2713aSLionel Sambuc CHECK_ALIGN(Test4, 8); 30*f4a2713aSLionel Sambuc 31