diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c b/gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c new file mode 100644 index 00000000000..7010a52b58d --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/aligned-section-anchors-vect-70.c @@ -0,0 +1,33 @@ +/* { 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*-*-* } } } */ |