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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-18 23:13:17 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-18 23:13:17 +0000 |
| commit | d050bafd156a2ec8ce1382590158b853acf1c6ee (patch) | |
| tree | 863c05e9f2399d3ae354b494076e8a668b4ee323 /gcc/ipa.c | |
| parent | 83428098eae0722871c4cd0ae3da93525757ce29 (diff) | |
| download | gcc-d050bafd156a2ec8ce1382590158b853acf1c6ee.tar.gz | |
PR tree-optimization/45453
* cgraphunit.c (cgraph_finalize_function): Consider comdat & external
virtual functions are reachable.
* ipa-inline.c (cgraph_clone_inlined_nodes): Likewise.
* ipa.c (cgraph_remove_unreachable_nodes): Likewise.
* ipa-prop.c (ipa_modify_formal_parameters): Clear DECL_VIRTUAL_P
when modifying function.
* g++.dg/tree-ssa/pr45453.C: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164405 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ipa.c')
| -rw-r--r-- | gcc/ipa.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ipa.c b/gcc/ipa.c index 8c0ca86d59d..e4835c1e03f 100644 --- a/gcc/ipa.c +++ b/gcc/ipa.c @@ -238,7 +238,12 @@ cgraph_remove_unreachable_nodes (bool before_inlining_p, FILE *file) #endif varpool_reset_queue (); for (node = cgraph_nodes; node; node = node->next) - if (!cgraph_can_remove_if_no_direct_calls_and_refs_p (node) + if ((!cgraph_can_remove_if_no_direct_calls_and_refs_p (node) + /* Keep around virtual functions for possible devirtualization. */ + || (!before_inlining_p + && !node->global.inlined_to + && DECL_VIRTUAL_P (node->decl) + && (DECL_COMDAT (node->decl) || DECL_EXTERNAL (node->decl)))) && ((!DECL_EXTERNAL (node->decl)) || before_inlining_p)) { |