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| author | Martin Jambor <mjambor@suse.cz> | 2010-06-09 13:20:03 +0200 |
|---|---|---|
| committer | Martin Jambor <jamborm@gcc.gnu.org> | 2010-06-09 13:20:03 +0200 |
| commit | 1536b6ab5405e87b082c305321f382345d20f604 (patch) | |
| tree | 7211b6e8b2594dec83d408ac174c8aae3475ae20 /gcc/tree-sra.c | |
| parent | 2d7f5f9b5f54aae8eaaaa6e430422ecbbfe91f4d (diff) | |
| download | gcc-1536b6ab5405e87b082c305321f382345d20f604.zip gcc-1536b6ab5405e87b082c305321f382345d20f604.tar.gz gcc-1536b6ab5405e87b082c305321f382345d20f604.tar.bz2 | |
re PR tree-optimization/44423 (Massive performance regression in SSE code due to SRA)
2010-06-09 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/44423
* tree-sra.c (dump_access): Dump also grp_assignment_read.
(analyze_access_subtree): Pass negative allow_replacements to children
if the current type is scalar.
* testsuite/gcc.dg/tree-ssa/pr44423.c: New test.
From-SVN: r160462
Diffstat (limited to 'gcc/tree-sra.c')
| -rw-r--r-- | gcc/tree-sra.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index 702187c..5387a19 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -356,13 +356,13 @@ dump_access (FILE *f, struct access *access, bool grp) print_generic_expr (f, access->type, 0); if (grp) fprintf (f, ", grp_write = %d, total_scalarization = %d, " - "grp_read = %d, grp_hint = %d, " + "grp_read = %d, grp_hint = %d, grp_assignment_read = %d," "grp_covered = %d, grp_unscalarizable_region = %d, " "grp_unscalarized_data = %d, grp_partial_lhs = %d, " "grp_to_be_replaced = %d, grp_maybe_modified = %d, " "grp_not_necessarilly_dereferenced = %d\n", access->grp_write, access->total_scalarization, - access->grp_read, access->grp_hint, + access->grp_read, access->grp_hint, access->grp_assignment_read, access->grp_covered, access->grp_unscalarizable_region, access->grp_unscalarized_data, access->grp_partial_lhs, access->grp_to_be_replaced, access->grp_maybe_modified, @@ -1791,7 +1791,8 @@ analyze_access_subtree (struct access *root, bool allow_replacements, else covered_to += child->size; - sth_created |= analyze_access_subtree (child, allow_replacements, + sth_created |= analyze_access_subtree (child, + allow_replacements && !scalar, mark_read, mark_write); root->grp_unscalarized_data |= child->grp_unscalarized_data; |