diff options
| author | Richard Guenther <rguenther@suse.de> | 2008-08-13 14:22:19 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-08-13 14:22:19 +0000 |
| commit | 99f536cc68422955e36cc1a5f590d790f92f8001 (patch) | |
| tree | a132b33918fa2aabf5676cd2cede6a9b1320407a /gcc/tree.h | |
| parent | e3f05c4e92cbf9464253d7886899204fe7b9e0b8 (diff) | |
| download | gcc-99f536cc68422955e36cc1a5f590d790f92f8001.zip gcc-99f536cc68422955e36cc1a5f590d790f92f8001.tar.gz gcc-99f536cc68422955e36cc1a5f590d790f92f8001.tar.bz2 | |
tree.h (maybe_fold_offset_to_address): Declare.
2008-08-13 Richard Guenther <rguenther@suse.de>
* tree.h (maybe_fold_offset_to_address): Declare.
* tree-ssa-ccp.c (surely_varying_stmt_p): Fix typo in last commit.
(ccp_fold): Handle pointer conversions the same as fold_stmt.
Likewise for POINTER_PLUS_EXPR.
(maybe_fold_offset_to_reference): Enable disabled code.
(maybe_fold_offset_to_address): New function.
(fold_stmt_r): Use it.
(fold_gimple_assign): Likewise.
* gimplify.c (gimplify_conversion): Use maybe_fold_offset_to_address.
(gimplify_expr): Likewise.
* gcc.dg/tree-ssa/ssa-ccp-21.c: New testcase.
* gcc.dg/tree-ssa/ssa-ccp-22.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-23.c: Likewise.
From-SVN: r139061
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -4744,6 +4744,7 @@ extern void fold_undefer_overflow_warnings (bool, const_gimple, int); extern void fold_undefer_and_ignore_overflow_warnings (void); extern bool fold_deferring_overflow_warnings_p (void); extern tree maybe_fold_offset_to_reference (tree, tree, tree); +extern tree maybe_fold_offset_to_address (tree, tree, tree); extern tree maybe_fold_stmt_addition (tree, tree, tree); extern tree force_fit_type_double (tree, unsigned HOST_WIDE_INT, HOST_WIDE_INT, |