diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/match.pd | 11 | ||||
| -rw-r--r--[-rwxr-xr-x] | gcc/testsuite/gcc.dg/pr54346.c | 2 |
2 files changed, 11 insertions, 2 deletions
diff --git a/gcc/match.pd b/gcc/match.pd index d07c0e4..194ba8f 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -8118,7 +8118,16 @@ and, vec_perm_indices sel2 (builder2, 2, nelts); tree op0 = NULL_TREE; - if (can_vec_perm_const_p (result_mode, op_mode, sel2, false)) + /* If the new VEC_PERM_EXPR can't be handled but both + original VEC_PERM_EXPRs can, punt. + If one or both of the original VEC_PERM_EXPRs can't be + handled and the new one can't be either, don't increase + number of VEC_PERM_EXPRs that can't be handled. */ + if (can_vec_perm_const_p (result_mode, op_mode, sel2, false) + || (single_use (@0) + ? (!can_vec_perm_const_p (result_mode, op_mode, sel0, false) + || !can_vec_perm_const_p (result_mode, op_mode, sel1, false)) + : !can_vec_perm_const_p (result_mode, op_mode, sel1, false))) op0 = vec_perm_indices_to_tree (TREE_TYPE (@4), sel2); } (if (op0) diff --git a/gcc/testsuite/gcc.dg/pr54346.c b/gcc/testsuite/gcc.dg/pr54346.c index 63611ab..5ec0609 100755..100644 --- a/gcc/testsuite/gcc.dg/pr54346.c +++ b/gcc/testsuite/gcc.dg/pr54346.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O -fdump-tree-dse1" } */ +/* { dg-options "-O -fdump-tree-dse1 -Wno-psabi" } */ typedef int veci __attribute__ ((vector_size (4 * sizeof (int)))); |