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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-03 10:15:54 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-03 10:15:54 +0000 |
| commit | 9d924a14cb3657941ca4f1406f1b710fec343aec (patch) | |
| tree | 557b00c4e086e7d798393273321f3907a7d16cb4 /gcc/tree-ssa-ccp.c | |
| parent | bf0e72b2492b09bb9be1c0aa55a6991dec33f374 (diff) | |
| download | gcc-9d924a14cb3657941ca4f1406f1b710fec343aec.tar.gz | |
* cgraph.h (struct varpool_node): Add const_value_known.
(varpool_decide_const_value_known): Declare.
* tree-ssa-ccp.c (fold_const_aggregate_ref): Update initializer folding.
* lto-cgraph.c (lto_output_varpool_node): Store const_value_known.
(input_varpool_node): Restore const_value_known.
* tree-ssa-loop-ivcanon (constant_after_peeling): Check varpool for
initializer folding.
* ipa.c (ipa_discover_readonly_nonaddressable_var,
function_and_variable_visibility): Compute const_value_known.
* gimple-fold.c (get_symbol_constant_value): Use varpool for initializer
folding.
* varpool.c (varpool_decide_const_value_known): New function.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163808 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 5551df2d5a3..8c42a633665 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1348,7 +1348,8 @@ fold_const_aggregate_ref (tree t) case VAR_DECL: if (!TREE_READONLY (base) || TREE_CODE (TREE_TYPE (base)) != ARRAY_TYPE - || !targetm.binds_local_p (base)) + || ((TREE_STATIC (base) || DECL_EXTERNAL (base)) + && !varpool_get_node (base)->const_value_known)) return NULL_TREE; ctor = DECL_INITIAL (base); @@ -1435,7 +1436,8 @@ fold_const_aggregate_ref (tree t) case VAR_DECL: if (!TREE_READONLY (base) || TREE_CODE (TREE_TYPE (base)) != RECORD_TYPE - || !targetm.binds_local_p (base)) + || ((TREE_STATIC (base) || DECL_EXTERNAL (base)) + && !varpool_get_node (base)->const_value_known)) return NULL_TREE; ctor = DECL_INITIAL (base); @@ -1509,7 +1511,8 @@ fold_const_aggregate_ref (tree t) if (!TREE_READONLY (base) || TREE_CODE (TREE_TYPE (base)) != ARRAY_TYPE - || !targetm.binds_local_p (base)) + || ((TREE_STATIC (base) || DECL_EXTERNAL (base)) + && !varpool_get_node (base)->const_value_known)) return NULL_TREE; ctor = DECL_INITIAL (base); |