diff options
| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/torture/pr50067-5.c | |
| 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/gcc.dg/torture/pr50067-5.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/torture/pr50067-5.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr50067-5.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr50067-5.c new file mode 100644 index 000000000..13ed73fe4 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr50067-5.c @@ -0,0 +1,28 @@ +/* { dg-do run } */ + +/* Verify we do not get a bogus access function pairs with + exchanged dimensions, 0, {1, +, 1}_1 vs. {2B, +, 1}_1, 0 which + disambiguates both accesses and leads to vectorization. */ + +extern int memcmp(const void *, const void *, __SIZE_TYPE__); +extern void abort (void); +short a[33] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 }; +short b[33] = { 0, }; +char * volatile ap_ = (char *)&a[0]; +int main() +{ +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + int i; + char *ap = ap_; + if (sizeof (short) == 2) + { + for (i = 0; i < 64; ++i) + { + (*((char(*)[])&ap[i+2]))[0] = (*((char(*)[])&ap[0]))[i+1]; + } + if (memcmp (&a, &b, sizeof (a)) != 0) + abort (); + } +#endif + return 0; +} |