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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/vect/vect-35.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/vect-35.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-35.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-35.c b/gcc/testsuite/gcc.dg/vect/vect-35.c new file mode 100644 index 000000000..0f4284a62 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-35.c @@ -0,0 +1,50 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 + +__attribute__ ((noinline)) +int main1 () +{ + union { + unsigned char a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + unsigned char b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + } s; + int i; + + /* Initialization. */ + for (i = 0; i < N; i++) + { + s.b[i] = i; + } + + /* Dependence analysis fails cause s.a and s.b may overlap. + Use runtime aliasing test with versioning. */ + for (i = 0; i < N; i++) + { + s.a[i] = s.b[i] + 1; + } + + /* check results: */ + for (i = 0; i < N; i++) + { + if (s.a[i] != i + 1) + abort (); + } + + return 0; +} + +int main (void) +{ + check_vect (); + + return main1 (); +} + + +/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { xfail { ia64-*-* sparc*-*-* } } } } */ +/* { dg-final { scan-tree-dump-times "can't determine dependence between" 1 "vect" } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |