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| author | Richard Guenther <rguenther@suse.de> | 2010-07-02 09:14:03 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-07-02 09:14:03 +0000 |
| commit | 3fa39831668c00d32632f72860cbacbcf8bef1cb (patch) | |
| tree | e275a509ae2b4520b1fe0b16331bf4376e900379 /gcc/tree-ssa-ccp.c | |
| parent | 8c7481f253d8943d16947248d76d7f717f8d7028 (diff) | |
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re PR tree-optimization/44748 (ICE: in fold_convert_const_int_from_real, at fold-const.c:1548)
2010-07-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/44748
* tree-ssa-ccp.c (fold_const_aggregate_ref): Properly handle
the embedded conversion in MEM_REFs.
* gcc.dg/tree-ssa/ssa-ccp-29.c: New testcase.
From-SVN: r161689
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 912c505..1e2309a 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1317,7 +1317,14 @@ fold_const_aggregate_ref (tree t) if (DECL_P (base) && !AGGREGATE_TYPE_P (TREE_TYPE (base)) && integer_zerop (TREE_OPERAND (t, 1))) - return get_symbol_constant_value (base); + { + tree res = get_symbol_constant_value (base); + if (res + && !useless_type_conversion_p + (TREE_TYPE (t), TREE_TYPE (res))) + res = fold_unary (VIEW_CONVERT_EXPR, TREE_TYPE (t), res); + return res; + } if (!TREE_READONLY (base) || TREE_CODE (TREE_TYPE (base)) != ARRAY_TYPE |