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authorBernd Edlinger <edlinger@gcc.gnu.org>2016-11-21 14:17:05 +0000
committerBernd Edlinger <edlinger@gcc.gnu.org>2016-11-21 14:17:05 +0000
commit48330c9355e32a41f18556fc0ebccdfe2cc51044 (patch)
tree2aa8fba617d40e3e606b3bdf3e74fb9eda06ff81 /gcc/lto
parenteeeaf7199a10b61c188785e7a86cd3cdecba07c3 (diff)
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re PR c++/71973 (c++ handles built-in functions inconsistently)
gcc: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * doc/invoke.texi (-Wno-builtin-declaration-mismatch): Document the new default-enabled warning.. * builtin-types.def (BT_CONST_TM_PTR): New primitive type. (BT_PTR_CONST_STRING): Updated. (BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR): Removed. (BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_TM_PTR): New function type. * builtins.def (DEF_TM_BUILTIN): Disable BOTH_P for TM builtins. (strftime): Update builtin function. * tree-core.h (TI_CONST_TM_PTR_TYPE): New enum value. * tree.h (const_tm_ptr_type_node): New type node. * tree.c (free_lang_data, build_common_tree_nodes): Initialize const_tm_ptr_type_node. c-family: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * c.opt (-Wbuiltin-declaration-mismatch): New warning. * c-common.c (c_common_nodes_and_builtins): Initialize const_tm_ptr_type_node. c: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * c-decl.c (diagnose_mismatched_decls): Use OPT_Wbuiltin_declaration_mismatch here too. cp: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * decl.c (duplicate_decls): Warn when a built-in function is redefined. Don't overload builtin functions with C++ functions. Handle const_tm_ptr_type_node like file_ptr_node. Copy the TREE_NOTHROW flag unmodified to the old decl. lto: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * lto-lang.c (lto_init): Assert const_tm_ptr_type_node is sane. testsuite: 2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de> PR c++/71973 * g++.dg/pr71973-1.C: New test. * g++.dg/pr71973-2.C: New test. * g++.dg/pr71973-3.C: New test. * g++.dg/lto/pr68811_0.C: Add -w to first lto-options. * g++.dg/lookup/extern-c-redecl4.C: Adjust test expectations. * g++.old-deja/g++.mike/p700.C: Add -Wno-builtin-declaration-mismatch to dg-options. * g++.old-deja/g++.other/realloc.C: Likewise. * g++.old-deja/g++.other/builtins10.C: Adjust test expectations. From-SVN: r242662
Diffstat (limited to 'gcc/lto')
-rw-r--r--gcc/lto/ChangeLog9
-rw-r--r--gcc/lto/lto-lang.c4
2 files changed, 11 insertions, 2 deletions
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 447c969..732fc8a 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,6 +1,11 @@
+2016-11-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
+
+ PR c++/71973
+ * lto-lang.c (lto_init): Assert const_tm_ptr_type_node is sane.
+
2016-11-18 Richard Sandiford <richard.sandiford@arm.com>
- Alan Hayward <alan.hayward@arm.com>
- David Sherwood <david.sherwood@arm.com>
+ Alan Hayward <alan.hayward@arm.com>
+ David Sherwood <david.sherwood@arm.com>
* lto.c (offload_handle_link_vars): Use SET_DECL_MODE.
diff --git a/gcc/lto/lto-lang.c b/gcc/lto/lto-lang.c
index 301cf21..a5f04ba 100644
--- a/gcc/lto/lto-lang.c
+++ b/gcc/lto/lto-lang.c
@@ -1266,6 +1266,10 @@ lto_init (void)
always use the C definition here in lto1. */
gcc_assert (fileptr_type_node == ptr_type_node);
gcc_assert (TYPE_MAIN_VARIANT (fileptr_type_node) == ptr_type_node);
+ /* Likewise for const struct tm*. */
+ gcc_assert (const_tm_ptr_type_node == const_ptr_type_node);
+ gcc_assert (TYPE_MAIN_VARIANT (const_tm_ptr_type_node)
+ == const_ptr_type_node);
ptrdiff_type_node = integer_type_node;