Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/vect/vect-35-big-array.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/vect/vect-35-big-array.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,51 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 128 + +__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. + Try to use runtime aliasing test with versioning, and + later versioning/vectorization are skipped because the + overlap is proven at compilation time. */ + 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 1 loops" 1 "vect" { xfail { ia64-*-* sparc*-*-* } } } } */ +/* { dg-final { scan-tree-dump "can't determine dependence between" "vect" } } */