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ipa/97565 - fix IPA PTA body availability check

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Looks like the existing check using has_gimple_body_p isn't enough
at LTRANS time but I need to check in_other_partition as well.

2021-08-23  Richard Biener  <rguenther@suse.de>

	PR ipa/97565
	* tree-ssa-structalias.c (ipa_pta_execute): Check in_other_partition
	in addition to has_gimple_body.

	* g++.dg/lto/pr97565_0.C: New testcase.
	* g++.dg/lto/pr97565_1.C: Likewise.
This commit is contained in:
Richard Biener 2021-08-23 15:37:48 +02:00
parent 39baa886bc
commit 0230e69a3f
3 changed files with 27 additions and 8 deletions
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7
gcc/testsuite/g++.dg/lto/pr97565_0.C Normal file
View file

@ -0,0 +1,7 @@
// { dg-lto-do link }
// { dg-lto-options { "-O -flto -fipa-pta" } }
extern "C" void abort(void)
{
abort();
}

6
gcc/testsuite/g++.dg/lto/pr97565_1.C Normal file
View file

@ -0,0 +1,6 @@
extern "C" void abort(void);
int main(int argc, char * argv[])
{
abort();
}

22
gcc/tree-ssa-structalias.c
View file

@ -8220,10 +8220,12 @@ ipa_pta_execute (void)
FOR_EACH_DEFINED_FUNCTION (node)
{
varinfo_t vi;
/* Nodes without a body are not interesting. Especially do not
visit clones at this point for now - we get duplicate decls
there for inline clones at least. */
if (!node->has_gimple_body_p () || node->inlined_to)
/* Nodes without a body in this partition are not interesting.
Especially do not visit clones at this point for now - we
get duplicate decls there for inline clones at least. */
if (!node->has_gimple_body_p ()
|| node->in_other_partition
|| node->inlined_to)
continue;
node->get_body ();
@ -8301,8 +8303,10 @@ ipa_pta_execute (void)
struct function *func;
basic_block bb;
/* Nodes without a body are not interesting. */
if (!node->has_gimple_body_p () || node->clone_of)
/* Nodes without a body in this partition are not interesting. */
if (!node->has_gimple_body_p ()
|| node->in_other_partition
|| node->clone_of)
continue;
if (dump_file)
@ -8431,8 +8435,10 @@ ipa_pta_execute (void)
unsigned i;
basic_block bb;
/* Nodes without a body are not interesting. */
if (!node->has_gimple_body_p () || node->clone_of)
/* Nodes without a body in this partition are not interesting. */
if (!node->has_gimple_body_p ()
|| node->in_other_partition
|| node->clone_of)
continue;
fn = DECL_STRUCT_FUNCTION (node->decl);