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Avoid segfault when doing IPA-VRP but not IPA-CP (PR 93015)

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2019-12-21  Martin Jambor  <mjambor@suse.cz>

	PR ipa/93015
	* ipa-cp.c (ipcp_store_vr_results): Check that info exists

	testsuite/
	* gcc.dg/lto/pr93015_0.c: New test.

From-SVN: r279695
This commit is contained in:
Martin Jambor 2019-12-21 12:25:05 +01:00 committed by Martin Jambor
parent 7ef6cab9b5
commit a09ccc2245
4 changed files with 17 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-12-21 Martin Jambor <mjambor@suse.cz>
PR ipa/93015
* ipa-cp.c (ipcp_store_vr_results): Check that info exists
2019-12-20 Michael Meissner <meissner@linux.ibm.com>
* config/rs6000/predicates.md (cint34_operand): Use

2
gcc/ipa-cp.c
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@ -5728,7 +5728,7 @@ ipcp_store_vr_results (void)
ipa_node_params *info = IPA_NODE_REF (node);
bool found_useful_result = false;
if (!opt_for_fn (node->decl, flag_ipa_vrp))
if (!info || !opt_for_fn (node->decl, flag_ipa_vrp))
{
if (dump_file)
fprintf (dump_file, "Not considering %s for VR discovery "

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-12-21 Martin Jambor <mjambor@suse.cz>
PR ipa/93015
* gcc.dg/lto/pr93015_0.c: New test.
2019-12-19 Marek Polacek <polacek@redhat.com>
PR c++/92745 - bogus error when initializing array of vectors.

6
gcc/testsuite/gcc.dg/lto/pr93015_0.c Normal file
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@ -0,0 +1,6 @@
/* { dg-lto-do link } */
/* { dg-lto-options { { -O0 -fipa-vrp -flto } } } */
int main() {
}