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| author | Richard Guenther <rguenther@suse.de> | 2012-02-20 15:15:52 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-02-20 15:15:52 +0000 |
| commit | a7ce6ec39314e69d2789bf4175983fb687225006 (patch) | |
| tree | 52b584af322306a457efe446b5f1f3d74618ee07 /gcc/tree-vect-data-refs.c | |
| parent | b0408f13d4b3170e5dc50149f042f21d1527767d (diff) | |
| download | gcc-a7ce6ec39314e69d2789bf4175983fb687225006.zip gcc-a7ce6ec39314e69d2789bf4175983fb687225006.tar.gz gcc-a7ce6ec39314e69d2789bf4175983fb687225006.tar.bz2 | |
re PR tree-optimization/52298 (ICE: verify_ssa failed: definition in block follows use)
2012-02-20 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52298
* tree-vect-stmts.c (vectorizable_store): Properly use
STMT_VINFO_DR_STEP instead of DR_STEP when vectorizing
outer loops.
(vectorizable_load): Likewise.
* tree-vect-data-refs.c (vect_analyze_data_ref_access):
Access DR_STEP after ensuring it is not NULL.
* gcc.dg/torture/pr52298.c: New testcase.
* gcc.dg/vect/pr52298.c: Likewise.
From-SVN: r184396
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 43f7662..b7d0cb5 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -2319,7 +2319,7 @@ vect_analyze_data_ref_access (struct data_reference *dr) stmt_vec_info stmt_info = vinfo_for_stmt (stmt); loop_vec_info loop_vinfo = STMT_VINFO_LOOP_VINFO (stmt_info); struct loop *loop = NULL; - HOST_WIDE_INT dr_step = TREE_INT_CST_LOW (step); + HOST_WIDE_INT dr_step; if (loop_vinfo) loop = LOOP_VINFO_LOOP (loop_vinfo); @@ -2332,6 +2332,7 @@ vect_analyze_data_ref_access (struct data_reference *dr) } /* Allow invariant loads in loops. */ + dr_step = TREE_INT_CST_LOW (step); if (loop_vinfo && dr_step == 0) { GROUP_FIRST_ELEMENT (vinfo_for_stmt (stmt)) = NULL; |