Viewing file:  pr88497-4.c (1.37 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* { dg-do compile } */
/* { dg-require-effective-target vect_int } */
/* { dg-require-effective-target powerpc_altivec_ok { target { powerpc*-*-* } } } */
/* { dg-require-effective-target sse2 { target { i?86-*-* x86_64-*-* } } } */
/* { dg-options "-O2 -ffast-math -fdump-tree-reassoc1" } */
/* { dg-additional-options "-maltivec" { target { powerpc*-*-* } } } */
/* { dg-additional-options "-msse2" { target { i?86-*-* x86_64-*-* } } } */
/* To test reassoc can undistribute vector bit_field_ref on bitwise IOR.
v1, v2, v3, v4 of type vector int.
reassoc transforms
accumulator |= v1[0] | v1[1] | v1[2] | v1[3] |
v2[0] | v2[1] | v2[2] | v2[3] |
v3[0] | v3[1] | v3[2] | v3[3] |
v4[0] | v4[1] | v4[2] | v4[3] ;
into:
T = v1 | v2 | v3 | v4;
accumulator |= T[0] | T[1] | T[2] | T[3];
Fewer bit_field_refs, only four for 128 or more bits vector. */
typedef int v4si __attribute__ ((vector_size (16)));
int
test (int accumulator, v4si v1, v4si v2, v4si v3, v4si v4)
{
accumulator |= v1[0] | v1[1] | v1[2] | v1[3];
accumulator |= v2[0] | v2[1] | v2[2] | v2[3];
accumulator |= v3[0] | v3[1] | v3[2] | v3[3];
accumulator |= v4[0] | v4[1] | v4[2] | v4[3];
return accumulator;
}
/* { dg-final { scan-tree-dump-times "BIT_FIELD_REF" 4 "reassoc1" { target { powerpc*-*-* i?86-*-* x86_64-*-* } } } } */
|
