re PR tree-optimization/52459 (PRE performs stupid inserts)
2012-03-22 Richard Guenther <rguenther@suse.de> PR tree-optimization/52459 * tree-ssa-pre.c (inhibit_phi_insertion): Do not inhibit PHI insertion for calls. From-SVN: r185676
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2012-03-22 Richard Guenther <rguenther@suse.de>
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PR tree-optimization/52459
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* tree-ssa-pre.c (inhibit_phi_insertion): Do not inhibit
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PHI insertion for calls.
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2012-03-21 Steven Bosscher <steven@gcc.gnu.org>
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2012-03-21 Steven Bosscher <steven@gcc.gnu.org>
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* cse.c (invalidate_from_sets_and_clobbers, try_back_substitute_reg,
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* cse.c (invalidate_from_sets_and_clobbers, try_back_substitute_reg,
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@ -3242,6 +3242,10 @@ inhibit_phi_insertion (basic_block bb, pre_expr expr)
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{
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{
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switch (op->opcode)
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switch (op->opcode)
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{
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{
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case CALL_EXPR:
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/* Calls are not a problem. */
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return false;
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case ARRAY_REF:
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case ARRAY_REF:
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case ARRAY_RANGE_REF:
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case ARRAY_RANGE_REF:
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if (TREE_CODE (op->op0) != SSA_NAME)
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if (TREE_CODE (op->op0) != SSA_NAME)
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