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| author | Richard Guenther <rguenther@suse.de> | 2009-05-15 13:09:53 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-05-15 13:09:53 +0000 |
| commit | 828552ed0b8aff5e46770b4c32a7608b04ee3788 (patch) | |
| tree | f22e80535ee47a66c5898bcd81363b613840d2c2 /gcc/tree-ssa-sccvn.c | |
| parent | 248fc9f328f5f1c4d94052c073bdc7699cacb382 (diff) | |
| download | gcc-828552ed0b8aff5e46770b4c32a7608b04ee3788.zip gcc-828552ed0b8aff5e46770b4c32a7608b04ee3788.tar.gz gcc-828552ed0b8aff5e46770b4c32a7608b04ee3788.tar.bz2 | |
re PR tree-optimization/39999 (gcc 4.4.0 compiles in infinite loop)
2009-05-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39999
* gimple.h (gimple_expr_type): Use the expression type looking
through useless conversions.
* tree-ssa-sccvn.c (vn_nary_op_lookup_stmt): Use gimple_expr_type.
(vn_nary_op_insert_stmt): Likewise.
(simplify_binary_expression): Likewise.
* gcc.c-torture/compile/pr39999.c: New testcase.
From-SVN: r147573
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 539afd2..e64b7ee 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1232,7 +1232,7 @@ vn_nary_op_lookup_stmt (gimple stmt, vn_nary_op_t *vnresult) *vnresult = NULL; vno1.opcode = gimple_assign_rhs_code (stmt); vno1.length = gimple_num_ops (stmt) - 1; - vno1.type = TREE_TYPE (gimple_assign_lhs (stmt)); + vno1.type = gimple_expr_type (stmt); for (i = 0; i < vno1.length; ++i) vno1.op[i] = gimple_op (stmt, i + 1); if (vno1.opcode == REALPART_EXPR @@ -1340,7 +1340,7 @@ vn_nary_op_insert_stmt (gimple stmt, tree result) vno1->value_id = VN_INFO (result)->value_id; vno1->opcode = gimple_assign_rhs_code (stmt); vno1->length = length; - vno1->type = TREE_TYPE (gimple_assign_lhs (stmt)); + vno1->type = gimple_expr_type (stmt); for (i = 0; i < vno1->length; ++i) vno1->op[i] = gimple_op (stmt, i + 1); if (vno1->opcode == REALPART_EXPR @@ -2065,7 +2065,7 @@ simplify_binary_expression (gimple stmt) fold_defer_overflow_warnings (); result = fold_binary (gimple_assign_rhs_code (stmt), - TREE_TYPE (gimple_get_lhs (stmt)), op0, op1); + gimple_expr_type (stmt), op0, op1); if (result) STRIP_USELESS_TYPE_CONVERSION (result); |