From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/objc.dg/bitfield-3.m | 49 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 gcc/testsuite/objc.dg/bitfield-3.m (limited to 'gcc/testsuite/objc.dg/bitfield-3.m') diff --git a/gcc/testsuite/objc.dg/bitfield-3.m b/gcc/testsuite/objc.dg/bitfield-3.m new file mode 100644 index 000000000..5bea0fca9 --- /dev/null +++ b/gcc/testsuite/objc.dg/bitfield-3.m @@ -0,0 +1,49 @@ +/* Check if the @defs() construct preserves the correct + layout of bitfields. */ +/* Contributed by Ziemowit Laski . */ +/* { dg-options "-Wpadded" } */ +/* { dg-do run } */ + +#include "../objc-obj-c++-shared/Object1.h" + +extern void abort(void); +extern int strcmp(const char *str1, const char *str2); +#define CHECK_IF(expr) if(!(expr)) abort() + +enum Enum { one, two, three, four }; + +@interface Base: Object { + unsigned a: 2; + int b: 3; + enum Enum c: 4; + unsigned d: 5; +} /* { dg-warning "padding struct size to alignment boundary" } */ +@end + +@interface Derived: Base { + signed e: 5; + int f: 4; + enum Enum g: 3; +} /* { dg-warning "padding struct size to alignment boundary" } */ +@end + +/* 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" } */ + +int main(void) +{ + CHECK_IF(sizeof(Base_t) == sizeof(Base)); + CHECK_IF(sizeof(Derived_t) == sizeof(Derived)); + +#ifdef __NEXT_RUNTIME__ + CHECK_IF(!strcmp(@encode(Base), "{Base=#b2b3b4b5}")); + CHECK_IF(!strcmp(@encode(Derived), "{Derived=#b2b3b4b5b5b4b3}")); + + CHECK_IF(!strcmp(@encode(Base_t), "{?=#b2b3b4b5}")); + CHECK_IF(!strcmp(@encode(Derived_t), "{?=#b2b3b4b5b5b4b3}")); +#endif /* __NEXT_RUNTIME__ */ + + return 0; +} -- cgit v1.2.3