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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m')
-rw-r--r-- | gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m b/gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m new file mode 100644 index 000000000..58d939b9d --- /dev/null +++ b/gcc-4.9/gcc/testsuite/objc.dg/bitfield-5.m @@ -0,0 +1,113 @@ +/* Check ObjC class layout follows the ABI (informally) + set in the past. ObjC structs must be laid out as if + all ivars, including those inherited from superclasses, + were defined at once (i.e., any padding introduced for + superclasses should be removed). */ +/* Contributed by Ziemowit Laski <zlaski@apple.com>. */ +/* { dg-options "-Wpadded" } */ +/* { dg-do run } */ + +#include "../objc-obj-c++-shared/TestsuiteObject.m" +#include <objc/objc.h> +#include <stdlib.h> + +#define CHECK_IF(expr) if(!(expr)) abort() + +enum Enum { zero, one, two, three, four }; + +@interface Base: TestsuiteObject { +@public + unsigned a: 2; + int b: 3; + enum Enum c: 4; + unsigned d: 5; +} /* { dg-warning "padding struct size to alignment boundary" } */ +@end + +struct Base_0 { + Class isa; + unsigned a: 2; + int b: 3; + enum Enum c: 4; + unsigned d: 5; +}; /* { dg-warning "padding struct size to alignment boundary" } */ + +@interface Derived: Base { +@public + signed e: 5; + unsigned f: 4; + enum Enum g: 3; +} /* { dg-warning "padding struct size to alignment boundary" } */ +@end + +struct Derived_0 { + Class isa; + unsigned a: 2; + int b: 3; + enum Enum c: 4; + unsigned d: 5; + signed e: 5; + int f: 4; + enum Enum g: 3; +}; /* { dg-warning "padding struct size to alignment boundary" } */ + +@interface Leaf: Derived { +@public + signed h: 2; +} /* { dg-warning "padding struct size to alignment boundary" } */ +@end + +struct Leaf_0 { + Class isa; + unsigned a: 2; + int b: 3; + enum Enum c: 4; + unsigned d: 5; + signed e: 5; + unsigned f: 4; + enum Enum g: 3; + signed h: 2; +}; /* { dg-warning "padding struct size to alignment boundary" } */ + +/* Note that the semicolon after @defs(...) is optional. */ + +typedef struct { @defs(Base) } Base_t; /* { dg-warning "padding struct size to alignment boundary" } */ +typedef struct { @defs(Derived); } Derived_t; /* { dg-warning "padding struct size to alignment boundary" } */ +typedef struct { @defs(Leaf); } Leaf_t; /* { dg-warning "padding struct size to alignment boundary" } */ + +int main(void) +{ + struct Leaf_0 l_0; + Leaf *l = (Leaf *)&l_0; + Leaf_t *l_t = (Leaf_t *)&l_0; + + CHECK_IF(sizeof(Base_t) == sizeof(Base)); + CHECK_IF(sizeof(Derived_t) == sizeof(Derived)); + CHECK_IF(sizeof(Leaf_t) == sizeof(Leaf)); + + CHECK_IF(sizeof(struct Base_0) == sizeof(Base)); + CHECK_IF(sizeof(struct Derived_0) == sizeof(Derived)); + CHECK_IF(sizeof(struct Leaf_0) == sizeof(Leaf)); + + l_0.isa = (Class)0; + l_0.a = 3; + l_0.b = 0; + l_0.c = three; + l_0.d = 31; + l_0.e = 0; + l_0.f = 15; + l_0.g = zero; + l_0.h = -2; + + CHECK_IF(!l_t->isa); + CHECK_IF(l->a == 3 && l_t->a == 3); + CHECK_IF(!l->b && !l_t->b); + CHECK_IF(l->c == three && l_t->c == three); + CHECK_IF(l->d == 31 && l_t->d == 31); + CHECK_IF(!l->e && !l_t->e); + CHECK_IF(l->f == 15 && l_t->f == 15); + CHECK_IF(l->g == zero && l_t->g == zero); + CHECK_IF(l->h == -2 && l_t->h == -2); + + return 0; +} |