diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr55857-1.c | 17 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr55857-2.c | 21 | ||||
| -rw-r--r-- | gcc/tree-vect-stmts.c | 3 |
5 files changed, 52 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index da7cc29..0680d23 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2013-01-03 Richard Biener <rguenther@suse.de> + PR tree-optimization/55857 + * tree-vect-stmts.c (vectorizable_load): Do not setup + re-alignment for invariant loads. + +2013-01-03 Richard Biener <rguenther@suse.de> + PR lto/55848 * lto-symtab.c (lto_symtab_merge_decls_1): As last resort, always prefer a built-in decl. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0b77bdd..3beff10 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2013-01-03 Richard Biener <rguenther@suse.de> + + PR tree-optimization/55857 + * gcc.dg/vect/pr55857-1.c: New testcase. + * gcc.dg/vect/pr55857-2.c: Likewise. + 2013-01-03 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/55838 diff --git a/gcc/testsuite/gcc.dg/vect/pr55857-1.c b/gcc/testsuite/gcc.dg/vect/pr55857-1.c new file mode 100644 index 0000000..ad41d30 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr55857-1.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ + +void +foo (int *data, unsigned len, const int qlp_coeff[], int lp, int residual[]) +{ + int i; + int sum; + for(i = 0; i < (int)len; i++) + { + sum = 0; + sum += qlp_coeff[1] * data[i-2]; + sum += qlp_coeff[0] * data[i-1]; + residual[i] = data[i] - (sum >> lp); + } +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/testsuite/gcc.dg/vect/pr55857-2.c b/gcc/testsuite/gcc.dg/vect/pr55857-2.c new file mode 100644 index 0000000..3bfff82 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr55857-2.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ + +void foo (int *data, unsigned len, const int qlp_coeff[], + unsigned order, int lp, int residual[]) +{ + int i; + int sum; + if(order == 2) + for(i = 0; i < (int)len; i++) + { + sum = 0; + sum += qlp_coeff[1] * data[i-2]; + sum += qlp_coeff[0] * data[i-1]; + residual[i] = data[i] - (sum >> lp); + } + else + for(i = 0; i < (int)len; i++) + residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp); +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index da9f12b..dfbce96 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -4927,7 +4927,8 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt, if ((alignment_support_scheme == dr_explicit_realign_optimized || alignment_support_scheme == dr_explicit_realign) - && !compute_in_loop) + && !compute_in_loop + && !integer_zerop (DR_STEP (dr))) { msq = vect_setup_realignment (first_stmt, gsi, &realignment_token, alignment_support_scheme, NULL_TREE, |