re PR tree-optimization/57685 (GCC stuck in an infinite loop)
2013-08-29 Richard Biener <rguenther@suse.de> PR tree-optimization/57685 * tree-vrp.c (register_edge_assert_for_1): Recurse only for single-use operands to avoid exponential complexity. * gcc.dg/torture/pr57685.c: New testcase. From-SVN: r202068
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2013-08-29 Richard Biener <rguenther@suse.de>
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PR tree-optimization/57685
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* tree-vrp.c (register_edge_assert_for_1): Recurse only for
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single-use operands to avoid exponential complexity.
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2013-08-28 Dehao Chen <dehao@google.com>
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* ipa-inline.c (edge_badness): Fix integer underflow.
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2013-08-29 Richard Biener <rguenther@suse.de>
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PR tree-optimization/57685
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* gcc.dg/torture/pr57685.c: New testcase.
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2013-08-28 Paolo Carlini <paolo.carlini@oracle.com>
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PR c++/58255
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/* { dg-do compile } */
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unsigned f(void)
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{
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unsigned a;
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int b, c, d, e;
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for(c = 27; c < 40; c++)
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b |= d |= b;
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if(b)
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a = e;
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return a;
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}
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@ -5410,10 +5410,14 @@ register_edge_assert_for_1 (tree op, enum tree_code code,
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&& gimple_assign_rhs_code (op_def) == BIT_IOR_EXPR))
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{
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/* Recurse on each operand. */
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retval |= register_edge_assert_for_1 (gimple_assign_rhs1 (op_def),
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code, e, bsi);
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retval |= register_edge_assert_for_1 (gimple_assign_rhs2 (op_def),
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code, e, bsi);
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tree op0 = gimple_assign_rhs1 (op_def);
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tree op1 = gimple_assign_rhs2 (op_def);
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if (TREE_CODE (op0) == SSA_NAME
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&& has_single_use (op0))
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retval |= register_edge_assert_for_1 (op0, code, e, bsi);
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if (TREE_CODE (op1) == SSA_NAME
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&& has_single_use (op1))
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retval |= register_edge_assert_for_1 (op1, code, e, bsi);
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}
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else if (gimple_assign_rhs_code (op_def) == BIT_NOT_EXPR
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&& TYPE_PRECISION (TREE_TYPE (gimple_assign_lhs (op_def))) == 1)
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