diff options
| author | Richard Guenther <rguenther@suse.de> | 2012-03-23 11:34:32 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-03-23 11:34:32 +0000 |
| commit | 0ac168a1cd87bfefee6f8ebad245080cfe16fc1d (patch) | |
| tree | 8b6ebe34884569f079b8d732cd6e253f6ca11fac /gcc/tree-vect-loop.c | |
| parent | 6e349de504c00b9451becd66103ae96eb4b6ad56 (diff) | |
| download | gcc-0ac168a1cd87bfefee6f8ebad245080cfe16fc1d.zip gcc-0ac168a1cd87bfefee6f8ebad245080cfe16fc1d.tar.gz gcc-0ac168a1cd87bfefee6f8ebad245080cfe16fc1d.tar.bz2 | |
re PR tree-optimization/52678 (internal compiler error: in vect_update_ivs_after_vectorizer, at tree-vect-loop-manip.c:1842)
2012-03-23 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52678
* tree-vectorizer.h (struct _stmt_vec_info): Add
loop_phi_evolution_part member.
(STMT_VINFO_LOOP_PHI_EVOLUTION_PART): New define.
* tree-vect-loop.c (vect_analyze_scalar_cycles_1): Initialize
STMT_VINFO_LOOP_PHI_EVOLUTION_PART.
* tree-vect-loop-manip.c (vect_update_ivs_after_vectorizer):
Use the cached evolution part and the PHI nodes value from
the loop preheader edge instead of re-analyzing the evolution.
* gfortran.dg/pr52678.f: New testcase.
From-SVN: r185734
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index abf131e..1b4ed88 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -579,6 +579,10 @@ vect_analyze_scalar_cycles_1 (loop_vec_info loop_vinfo, struct loop *loop) continue; } + STMT_VINFO_LOOP_PHI_EVOLUTION_PART (stmt_vinfo) + = evolution_part_in_loop_num (access_fn, loop->num); + gcc_assert (STMT_VINFO_LOOP_PHI_EVOLUTION_PART (stmt_vinfo) != NULL_TREE); + if (vect_print_dump_info (REPORT_DETAILS)) fprintf (vect_dump, "Detected induction."); STMT_VINFO_DEF_TYPE (stmt_vinfo) = vect_induction_def; |