re PR tree-optimization/83221 (qsort comparator not anti-commutative: -2147483648, -2147483648)
PR tree-optimization/83221 * tree-ssa-reassoc.c (sort_by_operand_rank): Shift bb_rank down by 16. (init_reassoc): Formatting fix. From-SVN: r255297
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@ -1,5 +1,10 @@
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2017-12-01 Jakub Jelinek <jakub@redhat.com>
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PR tree-optimization/83221
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* tree-ssa-reassoc.c (sort_by_operand_rank): Shift bb_rank
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down by 16.
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(init_reassoc): Formatting fix.
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PR sanitizer/81275
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* tree-cfg.c (group_case_labels_stmt): Don't optimize away
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C++ FE implicitly added __builtin_unreachable () until -Wreturn-type
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@ -543,7 +543,7 @@ sort_by_operand_rank (const void *pa, const void *pb)
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return -1;
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/* If neither is, compare bb_rank. */
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if (bb_rank[bbb->index] != bb_rank[bba->index])
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return bb_rank[bbb->index] - bb_rank[bba->index];
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return (bb_rank[bbb->index] >> 16) - (bb_rank[bba->index] >> 16);
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}
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bool da = reassoc_stmt_dominates_stmt_p (stmta, stmtb);
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@ -6131,7 +6131,7 @@ init_reassoc (void)
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/* Set up rank for each BB */
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for (i = 0; i < n_basic_blocks_for_fn (cfun) - NUM_FIXED_BLOCKS; i++)
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bb_rank[bbs[i]] = ++rank << 16;
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bb_rank[bbs[i]] = ++rank << 16;
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free (bbs);
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calculate_dominance_info (CDI_POST_DOMINATORS);
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