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| author | Martin Liska <mliska@suse.cz> | 2015-02-26 21:21:38 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2015-02-26 20:21:38 +0000 |
| commit | 5ebd0e6155dcb7ebecf278731aad189be79bb456 (patch) | |
| tree | 31bd542ab4137d5e5826c62a637c3f0f03c24b46 /gcc/ipa-ref.c | |
| parent | ff5ed3f6def9e24f907c6b9df66b9a582b327ac9 (diff) | |
| download | gcc-5ebd0e6155dcb7ebecf278731aad189be79bb456.zip gcc-5ebd0e6155dcb7ebecf278731aad189be79bb456.tar.gz gcc-5ebd0e6155dcb7ebecf278731aad189be79bb456.tar.bz2 | |
re PR lto/64693 (PCH failed with --with-build-config=bootstrap-lto)
Fix PR ipa/64693
PR ipa/64693
* ipa-icf.c (symbol_compare_collection::symbol_compare_collection): New.
(sem_item_optimizer::subdivide_classes_by_sensitive_refs): New function.
(sem_item_optimizer::process_cong_reduction): Include division by
sensitive references.
* ipa-icf.h (struct symbol_compare_hashmap_traits): New class.
* ipa-ref.c (ipa_ref::address_matters_p): New function.
* ipa-ref.h (ipa_ref::address_matters_p): Likewise.
* g++.dg/ipa/pr64146.C: Update expected results.
* gcc.dg/ipa/ipa-icf-26.c: Update test.
* gcc.dg/ipa/ipa-icf-33.c: Remove redundant line.
* gcc.dg/ipa/ipa-icf-34.c: New test.
Co-Authored-By: Jan Hubicka <hubicka@ucw.cz>
From-SVN: r221031
Diffstat (limited to 'gcc/ipa-ref.c')
| -rw-r--r-- | gcc/ipa-ref.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/ipa-ref.c b/gcc/ipa-ref.c index 91c2f89..f9af352 100644 --- a/gcc/ipa-ref.c +++ b/gcc/ipa-ref.c @@ -124,3 +124,23 @@ ipa_ref::referred_ref_list (void) { return &referred->ref_list; } + +/* Return true if refernece may be used in address compare. */ +bool +ipa_ref::address_matters_p () +{ + if (use != IPA_REF_ADDR) + return false; + /* Addresses taken from virtual tables are never compared. */ + if (is_a <varpool_node *> (referring) + && DECL_VIRTUAL_P (referring->decl)) + return false; + /* Address of virtual tables and functions is never compared. */ + if (DECL_VIRTUAL_P (referred->decl)) + return false; + /* Address of C++ cdtors is never compared. */ + if (is_a <cgraph_node *> (referred) + && (DECL_CXX_CONSTRUCTOR_P (referred->decl) || DECL_CXX_DESTRUCTOR_P (referred->decl))) + return false; + return true; +} |