Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do compile } */ /* { dg-require-effective-target section_anchors } */ /* { dg-require-effective-target vect_int } */ #define N 32 /* Increase alignment of struct if an array's offset is multiple of alignment of vector type corresponding to it's scalar type. For the below test-case: offsetof(e) == 8 bytes. i) For arm: let x = alignment of vector type corresponding to int, x == 8 bytes. Since offsetof(e) % x == 0, set DECL_ALIGN(a, b, c) to x. ii) For aarch64, ppc: x == 16 bytes. Since offsetof(e) % x != 0, don't increase alignment of a, b, c. */ static struct A { int p1, p2; int e[N]; } a, b, c; int foo(void) { for (int i = 0; i < N; i++) a.e[i] = b.e[i] + c.e[i]; return a.e[0]; } /* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 0 "increase_alignment" { target aarch64*-*-* } } } */ /* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 0 "increase_alignment" { target powerpc64*-*-* } } } */ /* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 3 "increase_alignment" { target arm*-*-* } } } */