diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.dg/vect/pr60276.c')
-rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.dg/vect/pr60276.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr60276.c b/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr60276.c new file mode 100644 index 000000000..d4ad21980 --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr60276.c @@ -0,0 +1,52 @@ +/* { dg-do run } */ + +extern void abort (void); + +static void +foo (int *out, const int *lp, unsigned samples) +{ + int x, target; + for (x = 0, target = 0; x < (int)samples; x += 2, target++) + { + out[x] = lp[target]; + out[x - 1] = out[x - 2] + out[x]; + } +} + +static void +foo_novec (int *out, const int *lp, unsigned samples) +{ + int x, target; + for (x = 0, target = 0; x < (int)samples; x += 2, target++) + { + out[x] = lp[target]; + out[x - 1] = out[x - 2] + out[x]; + __asm__ volatile ("" : : : "memory"); + } +} + +int main(void) +{ + const int lp[25] = { + 0, 2, 4, 6, 8, + 10, 12, 14, 16, + 18, 20, 22, 24, + 26, 28, 30, 32, + 34, 36, 38, 40, + 42, 44, 46, 48, + }; + int out[49] = {0}; + int out2[49] = {0}; + int s; + + foo (out + 2, lp + 1, 48); + foo_novec (out2 + 2, lp + 1, 48); + + for (s = 0; s < 49; s++) + if (out[s] != out2[s]) + abort (); + + return 0; +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ |