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re PR ipa/65318 (wrong code at -Os and above on x86_64-linux-gnu) 

PR ipa/65318
	* ipa-icf.c (sem_variable::equals): Compare variables types.
	* gcc.dg/ipa/pr65318.c: New test.

From-SVN: r221221
This commit is contained in:
Martin Liska 2015-03-05 18:49:49 +01:00 committed by Jan Hubicka
parent 2755b64ed5
commit 9374ef820b
4 changed files with 33 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-03-05 Martin Liska <mliska@suse.cz>
PR ipa/65318
* ipa-icf.c (sem_variable::equals): Compare variables types.
2015-03-05 Alex Velenko <alex.velenko@arm.com> 2015-03-05 Alex Velenko <alex.velenko@arm.com>
* config/arm/arm.c (arm_function_in_section_p): Fix predicate to * config/arm/arm.c (arm_function_in_section_p): Fix predicate to

5
gcc/ipa-icf.c
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@ -1501,6 +1501,11 @@ sem_variable::equals (sem_item *item,
if (DECL_INITIAL (item->decl) == error_mark_node && in_lto_p) if (DECL_INITIAL (item->decl) == error_mark_node && in_lto_p)
dyn_cast <varpool_node *>(item->node)->get_constructor (); dyn_cast <varpool_node *>(item->node)->get_constructor ();
/* As seen in PR ipa/65303 we have to compare variables types. */
if (!func_checker::compatible_types_p (TREE_TYPE (decl),
TREE_TYPE (item->decl)))
return return_false_with_msg ("variables types are different");
ret = sem_variable::equals (DECL_INITIAL (decl), ret = sem_variable::equals (DECL_INITIAL (decl),
DECL_INITIAL (item->node->decl)); DECL_INITIAL (item->node->decl));
if (dump_file && (dump_flags & TDF_DETAILS)) if (dump_file && (dump_flags & TDF_DETAILS))

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2015-03-05 Martin Liska <mliska@suse.cz>
PR ipa/65318
* gcc.dg/ipa/pr65318.c: New test.
2015-03-05 Marek Polacek <polacek@redhat.com> 2015-03-05 Marek Polacek <polacek@redhat.com>
* c-c++-common/ubsan/bounds-6.c: Use dg-do run. * c-c++-common/ubsan/bounds-6.c: Use dg-do run.

18
gcc/testsuite/gcc.dg/ipa/pr65318.c Normal file
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@ -0,0 +1,18 @@
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-ipa-icf-details" } */
static short a = 0;
short b = -1;
static unsigned short c = 0;
int
main ()
{
if (a <= b)
return 1;
return 0;
}
/* { dg-final { scan-ipa-dump "Equal symbols: 0" "icf" } } */
/* { dg-final { cleanup-ipa-dump "icf" } } */