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authorJan Hubicka <jh@suse.cz>2010-09-03 12:15:54 +0200
committerJan Hubicka <hubicka@gcc.gnu.org>2010-09-03 10:15:54 +0000
commit155c92a7a0a4ce7738d1d8851e572ea790f34ffb (patch)
tree557b00c4e086e7d798393273321f3907a7d16cb4 /gcc/tree-ssa-loop-ivcanon.c
parentcb1b497ec14f9e4c5ef5e15a8a0b2f454f5a1dfc (diff)
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cgraph.h (struct varpool_node): Add const_value_known.
* 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. From-SVN: r163808
Diffstat (limited to 'gcc/tree-ssa-loop-ivcanon.c')
-rw-r--r--gcc/tree-ssa-loop-ivcanon.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/tree-ssa-loop-ivcanon.c b/gcc/tree-ssa-loop-ivcanon.c
index b0d45bc..2ced307 100644
--- a/gcc/tree-ssa-loop-ivcanon.c
+++ b/gcc/tree-ssa-loop-ivcanon.c
@@ -165,9 +165,7 @@ constant_after_peeling (tree op, gimple stmt, struct loop *loop)
if ((DECL_P (base)
&& TREE_STATIC (base)
&& TREE_READONLY (base)
- && (DECL_INITIAL (base)
- || (!DECL_EXTERNAL (base)
- && targetm.binds_local_p (base))))
+ && varpool_get_node (base)->const_value_known)
|| CONSTANT_CLASS_P (base))
{
/* If so, see if we understand all the indices. */