Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/vect/pr79824-2.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-require-effective-target mmap } */ #include <sys/mman.h> #include <stdio.h> #include "tree-vect.h" #define COUNT 320 #define MMAP_SIZE 0x10000 #define ADDRESS 0x1122000000 #define TYPE double #ifndef MAP_ANONYMOUS #define MAP_ANONYMOUS MAP_ANON #endif void __attribute__((noinline)) foo (TYPE *__restrict a, TYPE *__restrict b) { int n; b = __builtin_assume_aligned (b, sizeof (TYPE) * 2); a = __builtin_assume_aligned (a, sizeof (TYPE) * 2); for (n = 0; n < COUNT; n++) { a[n] = b[n * 4] + b[n * 4 + 1]; } } int main (void) { void *x; size_t b_offset; check_vect (); x = mmap ((void *) ADDRESS, MMAP_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (x == MAP_FAILED) { perror ("mmap"); return 1; } b_offset = MMAP_SIZE - (4 * COUNT - 2) * sizeof (TYPE); foo ((TYPE *) x, (TYPE *) ((char *) x + b_offset)); return 0; }