diff options
Diffstat (limited to 'test/CodeGenCXX/warn-padded-packed.cpp')
-rw-r--r-- | test/CodeGenCXX/warn-padded-packed.cpp | 93 |
1 files changed, 85 insertions, 8 deletions
diff --git a/test/CodeGenCXX/warn-padded-packed.cpp b/test/CodeGenCXX/warn-padded-packed.cpp index f2af60865e05a..2cb049537348d 100644 --- a/test/CodeGenCXX/warn-padded-packed.cpp +++ b/test/CodeGenCXX/warn-padded-packed.cpp @@ -17,7 +17,7 @@ struct S3 { } __attribute__((packed)); struct S4 { - int i; // expected-warning {{packed attribute is unnecessary for 'i'}} + int i; char c; } __attribute__((packed)); @@ -46,18 +46,18 @@ 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'}} +struct S9 { + int x; + int y; } __attribute__((packed)); -struct S10 { // expected-warning {{packed attribute is unnecessary for 'S10'}} - int x; // expected-warning {{packed attribute is unnecessary for 'x'}} +struct S10 { + int x; char a,b,c,d; } __attribute__((packed)); -struct S11 { +struct S11 { // expected-warning {{packed attribute is unnecessary for 'S11'}} bool x; char a,b,c,d; } __attribute__((packed)); @@ -72,5 +72,82 @@ struct S13 { // expected-warning {{padding size of 'S13' with 6 bits to alignmen bool b : 10; }; +struct S14 { // expected-warning {{packed attribute is unnecessary for 'S14'}} + char a,b,c,d; +} __attribute__((packed)); + +struct S15 { // expected-warning {{packed attribute is unnecessary for 'S15'}} + struct S14 s; + char a; +} __attribute__((packed)); + +struct S16 { // expected-warning {{padding size of 'S16' with 2 bytes to alignment boundary}} expected-warning {{packed attribute is unnecessary for 'S16'}} + char a,b; +} __attribute__((packed, aligned(4))); + +struct S17 { + struct S16 s; + char a,b; +} __attribute__((packed, aligned(2))); + +struct S18 { // expected-warning {{padding size of 'S18' with 2 bytes to alignment boundary}} expected-warning {{packed attribute is unnecessary for 'S18'}} + struct S16 s; + char a,b; +} __attribute__((packed, aligned(4))); + +struct S19 { // expected-warning {{packed attribute is unnecessary for 'S19'}} + bool b; + char a; +} __attribute__((packed, aligned(1))); + +struct S20 { + int i; + char a; +} __attribute__((packed, aligned(1))); + +struct S21 { // expected-warning {{padding size of 'S21' with 4 bits to alignment boundary}} + unsigned char a : 6; + unsigned char b : 6; +} __attribute__((packed, aligned(1))); + +struct S22 { // expected-warning {{packed attribute is unnecessary for 'S22'}} + unsigned char a : 4; + unsigned char b : 4; +} __attribute__((packed)); + +struct S23 { // expected-warning {{padding size of 'S23' with 4 bits to alignment boundary}} expected-warning {{packed attribute is unnecessary for 'S23'}} + unsigned char a : 2; + unsigned char b : 2; +} __attribute__((packed)); + +struct S24 { + unsigned char a : 6; + unsigned char b : 6; + unsigned char c : 6; + unsigned char d : 6; + unsigned char e : 6; + unsigned char f : 6; + unsigned char g : 6; + unsigned char h : 6; +} __attribute__((packed)); + +struct S25 { // expected-warning {{padding size of 'S25' with 7 bits to alignment boundary}} expected-warning {{packed attribute is unnecessary for 'S25'}} + unsigned char a; + unsigned char b : 1; +} __attribute__((packed)); + +struct S26 { // expected-warning {{packed attribute is unnecessary for 'S26'}} + unsigned char a : 1; + unsigned char b; //expected-warning {{padding struct 'S26' with 7 bits to align 'b'}} +} __attribute__((packed)); + +struct S27 { // expected-warning {{padding size of 'S27' with 7 bits to alignment boundary}} + unsigned char a : 1; + unsigned char b : 8; +} __attribute__((packed)); + + // 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*) { } +void f(S1*, S2*, S3*, S4*, S5*, S6*, S7*, S8*, S9*, S10*, S11*, S12*, S13*, + S14*, S15*, S16*, S17*, S18*, S19*, S20*, S21*, S22*, S23*, S24*, S25*, + S26*, S27*){} |