| // RUN: %clang_cc1 -triple=x86_64-none-none -Wpadded -Wpacked -verify %s -emit-llvm-only |
| |
| struct S1 { |
| char c; |
| short s; // expected-warning {{padding struct 'S1' with 1 byte to align 's'}} |
| long l; // expected-warning {{padding struct 'S1' with 4 bytes to align 'l'}} |
| }; |
| |
| struct S2 { // expected-warning {{padding size of 'S2' with 3 bytes to alignment boundary}} |
| int i; |
| char c; |
| }; |
| |
| struct S3 { |
| char c; |
| int i; |
| } __attribute__((packed)); |
| |
| struct S4 { |
| int i; // expected-warning {{packed attribute is unnecessary for 'i'}} |
| char c; |
| } __attribute__((packed)); |
| |
| struct S5 { |
| char c; |
| union { |
| char c; |
| int i; |
| } u; // expected-warning {{padding struct 'S5' with 3 bytes to align 'u'}} |
| }; |
| |
| struct S6 { // expected-warning {{padding size of 'S6' with 30 bits to alignment boundary}} |
| int i : 2; |
| }; |
| |
| struct S7 { // expected-warning {{padding size of 'S7' with 7 bytes to alignment boundary}} |
| char c; |
| virtual void m(); |
| }; |
| |
| struct B { |
| char c; |
| }; |
| |
| struct S8 : B { |
| int i; // expected-warning {{padding struct 'S8' with 3 bytes to align 'i'}} |
| }; |
| |
| struct S9 { // expected-warning {{packed attribute is unnecessary for 'S9'}} |
| int x; // expected-warning {{packed attribute is unnecessary for 'x'}} |
| int y; // expected-warning {{packed attribute is unnecessary for 'y'}} |
| } __attribute__((packed)); |
| |
| struct S10 { // expected-warning {{packed attribute is unnecessary for 'S10'}} |
| int x; // expected-warning {{packed attribute is unnecessary for 'x'}} |
| char a,b,c,d; |
| } __attribute__((packed)); |
| |
| |
| struct S11 { |
| bool x; |
| char a,b,c,d; |
| } __attribute__((packed)); |
| |
| struct S12 { |
| bool b : 1; |
| char c; // expected-warning {{padding struct 'S12' with 7 bits to align 'c'}} |
| }; |
| |
| struct S13 { // expected-warning {{padding size of 'S13' with 6 bits to alignment boundary}} |
| char c; |
| bool b : 10; |
| }; |
| |
| // The warnings are emitted when the layout of the structs is computed, so we have to use them. |
| void f(S1*, S2*, S3*, S4*, S5*, S6*, S7*, S8*, S9*, S10*, S11*, S12*, S13*) { } |