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| author | Richard Biener <rguenther@suse.de> | 2013-03-06 11:24:07 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-03-06 11:24:07 +0000 |
| commit | fa5556deb30c805414137700342441f3186b075a (patch) | |
| tree | c3718ec07ee45dfd5809b7725f9a6cc7dcfb2b88 /gcc/tree-into-ssa.c | |
| parent | 010403d180a49644c9786a55d51d677aafa86402 (diff) | |
| download | gcc-fa5556deb30c805414137700342441f3186b075a.zip gcc-fa5556deb30c805414137700342441f3186b075a.tar.gz gcc-fa5556deb30c805414137700342441f3186b075a.tar.bz2 | |
re PR tree-optimization/56294 (BOOT_CFLAGS='-O2 -g -fno-ipa-sra' leads to bootstrap comparison failure)
2013-03-06 Richard Biener <rguenther@suse.de>
PR middle-end/56294
* tree-into-ssa.c (insert_phi_nodes_for): Add dumping.
(insert_updated_phi_nodes_compare_uids): New function.
(update_ssa): Sort symbols_to_rename after UID before
traversing it to insert PHI nodes.
From-SVN: r196488
Diffstat (limited to 'gcc/tree-into-ssa.c')
| -rw-r--r-- | gcc/tree-into-ssa.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/tree-into-ssa.c b/gcc/tree-into-ssa.c index 323bbb3..65c15da 100644 --- a/gcc/tree-into-ssa.c +++ b/gcc/tree-into-ssa.c @@ -969,6 +969,12 @@ insert_phi_nodes_for (tree var, bitmap phi_insertion_points, bool update_p) if (update_p) mark_block_for_update (bb); + if (dump_file && (dump_flags & TDF_DETAILS)) + { + fprintf (dump_file, "creating PHI node in block #%d for ", bb_index); + print_generic_expr (dump_file, var, TDF_SLIM); + fprintf (dump_file, "\n"); + } phi = NULL; if (TREE_CODE (var) == SSA_NAME) @@ -3040,6 +3046,17 @@ insert_updated_phi_nodes_for (tree var, bitmap_head *dfs, bitmap blocks, BITMAP_FREE (idf); } +/* Sort symbols_to_rename after their DECL_UID. */ + +static int +insert_updated_phi_nodes_compare_uids (const void *a, const void *b) +{ + const_tree syma = *(const const_tree *)a; + const_tree symb = *(const const_tree *)b; + if (DECL_UID (syma) == DECL_UID (symb)) + return 0; + return DECL_UID (syma) < DECL_UID (symb) ? -1 : 1; +} /* Given a set of newly created SSA names (NEW_SSA_NAMES) and a set of existing SSA names (OLD_SSA_NAMES), update the SSA form so that: @@ -3250,6 +3267,7 @@ update_ssa (unsigned update_flags) sbitmap_free (tmp); } + symbols_to_rename.qsort (insert_updated_phi_nodes_compare_uids); FOR_EACH_VEC_ELT (symbols_to_rename, i, sym) insert_updated_phi_nodes_for (sym, dfs, blocks_to_update, update_flags); |