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authorJan Hubicka <jh@suse.cz>2009-04-18 20:39:52 +0200
committerJan Hubicka <hubicka@gcc.gnu.org>2009-04-18 18:39:52 +0000
commit2505c5edcac3fbc0a39ad74c63bab1534ee6e491 (patch)
tree605c8e1d928935149f9367d15c77d8c439de199f /gcc/cgraph.c
parentc7f9c0b9835fc77208bddffec0ba71d33fb425fa (diff)
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cgraph.c (cgraph_make_edge, [...]): Set nothrow flag.
* cgraph.c (cgraph_make_edge, dump_cgraph_node, cgraph_set_call_stmt): Set nothrow flag. * cgraph.h (struct function): Reduce loop_nest to 30 bits; add can_throw_external flag. * ipa-reference.c (ipa_utils_reduced_inorder): Update call. * ipa-pure-const.c (ignore_edge): New function. (propagate): Compute order for NOTHROW computation; set NOTHROWs only over can_throw_external edges. (local_pure_const): Add nothrow flag. * ipa-utils.c (searchc): Add ignore_edge callback. (ipa_utils_reduced_inorder): Add ignore_edge callback. * ipa-utils.h (ipa_utils_reduced_inorder): Update prototype. (set_nothrow_function_flags): Update cgraph. * tree-cfg.c (verify_stmt): Relax nothrow checking when in IPA mode. From-SVN: r146322
Diffstat (limited to 'gcc/cgraph.c')
-rw-r--r--gcc/cgraph.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/cgraph.c b/gcc/cgraph.c
index 86642ab..f7189b9 100644
--- a/gcc/cgraph.c
+++ b/gcc/cgraph.c
@@ -640,6 +640,7 @@ cgraph_set_call_stmt (struct cgraph_edge *e, gimple new_stmt)
htab_hash_pointer (e->call_stmt));
}
e->call_stmt = new_stmt;
+ e->can_throw_external = stmt_can_throw_external (new_stmt);
if (e->caller->call_site_hash)
{
void **slot;
@@ -704,6 +705,7 @@ cgraph_create_edge (struct cgraph_node *caller, struct cgraph_node *callee,
edge->caller = caller;
edge->callee = callee;
edge->call_stmt = call_stmt;
+ edge->can_throw_external = stmt_can_throw_external (call_stmt);
edge->prev_caller = NULL;
edge->next_caller = callee->callers;
if (callee->callers)
@@ -1215,6 +1217,8 @@ dump_cgraph_node (FILE *f, struct cgraph_node *node)
fprintf(f, "(inlined) ");
if (edge->indirect_call)
fprintf(f, "(indirect) ");
+ if (edge->can_throw_external)
+ fprintf(f, "(can throw external) ");
}
fprintf (f, "\n calls: ");