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| author | Ira Rosen <irar@il.ibm.com> | 2004-11-30 14:40:38 +0000 |
|---|---|---|
| committer | Dorit Nuzman <dorit@gcc.gnu.org> | 2004-11-30 14:40:38 +0000 |
| commit | f2b60e4039b662779ffc4a59eacb186b5b821cd6 (patch) | |
| tree | 145401d23e39193da659af0881fee2965fca8448 /gcc | |
| parent | 1b3c8f4655e63309012ab8054699b47d9b64b9fe (diff) | |
| download | gcc-f2b60e4039b662779ffc4a59eacb186b5b821cd6.zip gcc-f2b60e4039b662779ffc4a59eacb186b5b821cd6.tar.gz gcc-f2b60e4039b662779ffc4a59eacb186b5b821cd6.tar.bz2 | |
re PR tree-optimization/18607 (Vectorizer: data_reference is overwritten in vect_analyze_data_refs)
2004-11-30 Ira Rosen <irar@il.ibm.com>
PR tree-opt/18607
* tree-vectorizer.c (vect_analyze_data_refs): Use temporary
variable for data_reference when looking for memtag.
From-SVN: r91521
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-89.c | 46 | ||||
| -rw-r--r-- | gcc/tree-vectorizer.c | 8 |
3 files changed, 56 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 63e7c3c..457e8e6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-11-30 Ira Rosen <irar@il.ibm.com> + + PR tree-opt/18607 + * tree-vectorizer.c (vect_analyze_data_refs): Use temporary + variable for data_reference when looking for memtag. + 2004-11-30 Jakub Jelinek <jakub@redhat.com> * c-opts.c (check_deps_environment_vars): If spec != NULL, set diff --git a/gcc/testsuite/gcc.dg/vect/vect-89.c b/gcc/testsuite/gcc.dg/vect/vect-89.c new file mode 100644 index 0000000..754e984 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-89.c @@ -0,0 +1,46 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 + +struct tmp_struct +{ + int x; + int y[N]; +}; + +int main1 () +{ + int i, *q; + struct tmp_struct tmp, *p; + + p = &tmp; + q = p->y; + + for (i = 0; i < N; i++) + { + *q++ = 5; + } + + /* check results: */ + for (i = 0; i < N; i++) + { + if (p->y[i] != 5) + { + abort (); + } + } + + return 0; +} + +int main (void) +{ + check_vect (); + + return main1 (); +} + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c index 7aa6175..0f49a32 100644 --- a/gcc/tree-vectorizer.c +++ b/gcc/tree-vectorizer.c @@ -4899,7 +4899,7 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo) int nbbs = loop->num_nodes; block_stmt_iterator si; int j; - struct data_reference *dr; + struct data_reference *dr, *tmp_dr; tree tag; tree address_base; bool base_aligned_p; @@ -5013,9 +5013,9 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo) switch (TREE_CODE (address_base)) { case ARRAY_REF: - dr = analyze_array (stmt, TREE_OPERAND (symbl, 0), - DR_IS_READ(dr)); - tag = vect_get_base_and_bit_offset (dr, DR_BASE_NAME (dr), + tmp_dr = analyze_array (stmt, TREE_OPERAND (symbl, 0), + DR_IS_READ (tmp_dr)); + tag = vect_get_base_and_bit_offset (tmp_dr, DR_BASE_NAME (tmp_dr), NULL_TREE, loop_vinfo, &offset, &base_aligned_p); if (!tag) { |