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| author | Richard Biener <rguenther@suse.de> | 2015-04-16 12:10:34 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-04-16 12:10:34 +0000 |
| commit | b9334e4c48b64c13796604a859d5cbb2158ea86d (patch) | |
| tree | 70de4b20a0fdee7312802b5f5b06dabe96b52651 /gcc/tree-ssa-ccp.c | |
| parent | f8269ad4a97c7a4c950fcf42de24d6f145037e7e (diff) | |
| download | gcc-b9334e4c48b64c13796604a859d5cbb2158ea86d.zip gcc-b9334e4c48b64c13796604a859d5cbb2158ea86d.tar.gz gcc-b9334e4c48b64c13796604a859d5cbb2158ea86d.tar.bz2 | |
re PR tree-optimization/65774 (FAIL: gcc.dg/builtin-arith-overflow-1.c (internal compiler error))
2015-04-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/65774
* tree-ssa-ccp.c (evaluate_stmt): Constrain types we invoke
bit-value tracking on.
From-SVN: r222147
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 45 |
1 files changed, 19 insertions, 26 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 996296b..79f6afb 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1772,35 +1772,28 @@ evaluate_stmt (gimple stmt) { enum tree_code subcode = gimple_assign_rhs_code (stmt); tree rhs1 = gimple_assign_rhs1 (stmt); - switch (get_gimple_rhs_class (subcode)) - { - case GIMPLE_SINGLE_RHS: - if (INTEGRAL_TYPE_P (TREE_TYPE (rhs1)) - || POINTER_TYPE_P (TREE_TYPE (rhs1))) - val = get_value_for_expr (rhs1, true); - break; + tree lhs = gimple_assign_lhs (stmt); + if ((INTEGRAL_TYPE_P (TREE_TYPE (lhs)) + || POINTER_TYPE_P (TREE_TYPE (lhs))) + && (INTEGRAL_TYPE_P (TREE_TYPE (rhs1)) + || POINTER_TYPE_P (TREE_TYPE (rhs1)))) + switch (get_gimple_rhs_class (subcode)) + { + case GIMPLE_SINGLE_RHS: + val = get_value_for_expr (rhs1, true); + break; - case GIMPLE_UNARY_RHS: - if ((INTEGRAL_TYPE_P (TREE_TYPE (rhs1)) - || POINTER_TYPE_P (TREE_TYPE (rhs1))) - && (INTEGRAL_TYPE_P (gimple_expr_type (stmt)) - || POINTER_TYPE_P (gimple_expr_type (stmt)))) - val = bit_value_unop (subcode, gimple_expr_type (stmt), rhs1); - break; + case GIMPLE_UNARY_RHS: + val = bit_value_unop (subcode, TREE_TYPE (lhs), rhs1); + break; - case GIMPLE_BINARY_RHS: - if (INTEGRAL_TYPE_P (TREE_TYPE (rhs1)) - || POINTER_TYPE_P (TREE_TYPE (rhs1))) - { - tree lhs = gimple_assign_lhs (stmt); - tree rhs2 = gimple_assign_rhs2 (stmt); - val = bit_value_binop (subcode, - TREE_TYPE (lhs), rhs1, rhs2); - } - break; + case GIMPLE_BINARY_RHS: + val = bit_value_binop (subcode, TREE_TYPE (lhs), rhs1, + gimple_assign_rhs2 (stmt)); + break; - default:; - } + default:; + } } else if (code == GIMPLE_COND) { |