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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/pr36227.c | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/pr36227.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr36227.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr36227.c b/gcc/testsuite/gcc.dg/pr36227.c new file mode 100644 index 000000000..27fe00155 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr36227.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -Wstrict-overflow=3" } */ +#if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__) +typedef unsigned long long ptrcast; +#elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__) +typedef unsigned long ptrcast; +#elif (__SIZEOF_INT__ == __SIZEOF_POINTER__) +typedef unsigned int ptrcast; +#else +#error Add target support here +#endif + +volatile unsigned long * +sat_add(volatile unsigned long *ptr, unsigned long i, volatile unsigned long *end) +{ + if ((ptrcast)ptr + i * sizeof(*ptr) > (ptrcast)ptr) /* { dg-bogus "pointer wraparound" } */ + return ptr + i; + else + return end; +} + + |