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| author | H.J. Lu <hongjiu.lu@intel.com> | 2010-07-03 22:44:32 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2010-07-03 15:44:32 -0700 |
| commit | 24b93bd603c942aa8c9af256a6387b9094404dda (patch) | |
| tree | 0d0b07899e98b798e7d8f869091d3f216cb4e06e /gcc | |
| parent | d3ca3d6bd706bd629168a7e467ae1efdd923fed8 (diff) | |
| download | gcc-24b93bd603c942aa8c9af256a6387b9094404dda.zip gcc-24b93bd603c942aa8c9af256a6387b9094404dda.tar.gz gcc-24b93bd603c942aa8c9af256a6387b9094404dda.tar.bz2 | |
Add a testcase for PR 44806.
2010-07-03 H.J. Lu <hongjiu.lu@intel.com>
PR c/44806
* gcc.dg/torture/pr44806.c: New.
From-SVN: r161787
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr44806.c | 90 |
2 files changed, 95 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d64f505..a815dd1 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-07-03 H.J. Lu <hongjiu.lu@intel.com> + + PR c/44806 + * gcc.dg/torture/pr44806.c: New. + 2010-07-03 Eric Botcazou <ebotcazou@adacore.com> * gnat.dg/cond_expr1.adb: New test. diff --git a/gcc/testsuite/gcc.dg/torture/pr44806.c b/gcc/testsuite/gcc.dg/torture/pr44806.c new file mode 100644 index 0000000..d0002d3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr44806.c @@ -0,0 +1,90 @@ +/* { dg-do run } */ + +#include <stdint.h> + +extern void abort (void); + +#define N_DEV_BITS_4 5 +#define N_INO_BITS_4 (32 - N_DEV_BITS_4 - 2 - 1) + +#define N_DEV_BITS_8 8 +#define N_INO_BITS_8 (64 - N_DEV_BITS_8 - 2 - 1) + +struct dev_ino_4 +{ + uint32_t mode:2; + uint32_t short_ino:N_INO_BITS_4; + uint32_t mapped_dev:N_DEV_BITS_4; + uint32_t always_set:1; +}; + +struct dev_ino_8 +{ + uint32_t mode:2; + uint64_t short_ino:N_INO_BITS_8; + uint32_t mapped_dev:N_DEV_BITS_8; + uint32_t always_set:1; +}; + +struct dev_ino_full +{ + uint32_t mode:2; + uint32_t dev; + uint32_t ino; +}; + +enum di_mode +{ + DI_MODE_4 = 1, + DI_MODE_8 = 2, + DI_MODE_FULL = 3 +}; + +struct di_ent +{ + union + { + struct dev_ino_4 di4; + struct dev_ino_8 di8; + struct dev_ino_full full; + uint32_t u32; + uint64_t u64; + void *ptr; + } u; +}; + +static struct di_ent +decode_ptr (struct di_ent const *v) +{ + struct di_ent di; + di.u.ptr = (void *) v; + return di; +} + +static int +di_ent_equal (void const *x, void const *y) +{ + struct di_ent a = decode_ptr (x); + struct di_ent b = decode_ptr (y); + if (a.u.di4.mode != b.u.di4.mode) + return 0; + + if (a.u.di4.mode == DI_MODE_4) + return (a.u.di4.short_ino == b.u.di4.short_ino + && a.u.di4.mapped_dev == b.u.di4.mapped_dev); + + if (a.u.di8.mode == DI_MODE_8) + return (a.u.di8.short_ino == b.u.di8.short_ino + && a.u.di8.mapped_dev == b.u.di8.mapped_dev); + + return (a.u.full.ino == b.u.full.ino + && a.u.full.dev == b.u.full.dev); +} + +int +main () +{ + if (di_ent_equal ((void *) 0x80143c4d, (void *) 0x80173851) != 0) + abort (); + return 0; +} |