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Fix for PR ipa/63851 and ipa/63852.

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PR ipa/63851
	PR ipa/63852
	* ipa-icf.c (sem_function::merge): Ignore merge operation
	for a thunk created from static chain.
	* ipa-icf-gimple.c (func_checker::compatible_types_p): Verify that
	types have same restrict flag.

From-SVN: r219042
This commit is contained in:
Martin Liska 2014-12-23 10:30:20 +01:00 • committed by Martin Liska
parent 960389139b
commit 34b42fb0ea
3 changed files with 20 additions and 0 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2014-12-23 Martin Liska <mliska@suse.cz>
PR ipa/63851
PR ipa/63852
* ipa-icf.c (sem_function::merge): Ignore merge operation
for a thunk created from static chain.
* ipa-icf-gimple.c (func_checker::compatible_types_p): Verify that
types have same restrict flag.
2014-12-22 John David Anglin <danglin@gcc.gnu.org>
PR target/55023

3
gcc/ipa-icf-gimple.c
View file

@ -185,6 +185,9 @@ bool func_checker::compatible_types_p (tree t1, tree t2,
if (TREE_CODE (t1) != TREE_CODE (t2))
return return_false_with_msg ("different tree types");
if (TYPE_RESTRICT (t1) != TYPE_RESTRICT (t2))
return return_false_with_msg ("restrict flags are different");
if (!types_compatible_p (t1, t2))
return return_false_with_msg ("types are not compatible");

8
gcc/ipa-icf.c
View file

@ -694,6 +694,14 @@ sem_function::merge (sem_item *alias_item)
return 0;
}
if (DECL_STATIC_CHAIN (alias->decl))
{
if (dump_file)
fprintf (dump_file, "Thunk creation is risky for static-chain functions.\n\n");
return 0;
}
alias->icf_merged = true;
ipa_merge_profiles (local_original, alias);
alias->create_wrapper (local_original);