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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-09-26 12:58:35 +0000 |
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| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-09-26 12:58:35 +0000 |
| commit | 62df0ff99f2ca79430f3c26c5d2b8fca0ddf9d3a (patch) | |
| tree | 851dba3ea227d9d83fa999a66f6e3c047a8e9978 /gcc/gimple-fold.c | |
| parent | d384d9d9bc27b1a905726591d25e20981f776460 (diff) | |
| download | gcc-62df0ff99f2ca79430f3c26c5d2b8fca0ddf9d3a.tar.gz | |
2011-09-26 Richard Guenther <rguenther@suse.de>
PR tree-optimization/50472
* gimple-fold.c (fold_const_aggregate_ref_1): Do not fold
volatile references.
* gcc.dg/torture/pr50472.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@179196 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index b481c4a5fa1..d754ea9a5b9 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -2919,6 +2919,9 @@ fold_const_aggregate_ref_1 (tree t, tree (*valueize) (tree)) HOST_WIDE_INT offset, size, max_size; tree tem; + if (TREE_THIS_VOLATILE (t)) + return NULL_TREE; + if (TREE_CODE_CLASS (TREE_CODE (t)) == tcc_declaration) return get_symbol_constant_value (t); |