Viewing file:  pr88497-3.c (1.37 KB) -rw-r--r--
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/* { 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 AND.
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-*-* } } } } */
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