From: jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 10 Dec 2018 12:45:47 +0000 (+0000)
Subject: [PR 88214] Check that an argument is a pointer
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2fd08219c82eba4d1d15f260db98c2e154268f2;p=thirdparty%2Fgcc.git

[PR 88214] Check that an argument is a pointer

2018-12-10  Martin Jambor  <mjambor@suse.cz>

	PR ipa/88214
	* ipa-prop.c (determine_locally_known_aggregate_parts): Make sure
	we check pointers against pointers.

	testsuite/
	* gcc.dg/ipa/pr88214.c: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@266953 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 41591ff01023..600cb4738c3e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-12-10  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/88214
+	* ipa-prop.c (determine_locally_known_aggregate_parts): Make sure
+	we check pointers against pointers.
+
 2018-12-10  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/88415
diff --git a/gcc/ipa-prop.c b/gcc/ipa-prop.c
index f19b3ab2b7f2..4a2a6fa14cc6 100644
--- a/gcc/ipa-prop.c
+++ b/gcc/ipa-prop.c
@@ -1569,7 +1569,8 @@ determine_locally_known_aggregate_parts (gcall *call, tree arg,
       if (TREE_CODE (arg) == SSA_NAME)
 	{
 	  tree type_size;
-          if (!tree_fits_uhwi_p (TYPE_SIZE (TREE_TYPE (arg_type))))
+          if (!tree_fits_uhwi_p (TYPE_SIZE (TREE_TYPE (arg_type)))
+	      || !POINTER_TYPE_P (TREE_TYPE (arg)))
             return;
 	  check_ref = true;
 	  arg_base = arg;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 20abb395c207..1f7d64afd8eb 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-12-10  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/88214
+	* gcc.dg/ipa/pr88214.c: New test.
+
 2018-12-10  Jakub Jelinek  <jakub@redhat.com>
 
 	PR testsuite/88369
diff --git a/gcc/testsuite/gcc.dg/ipa/pr88214.c b/gcc/testsuite/gcc.dg/ipa/pr88214.c
new file mode 100644
index 000000000000..4daa9829e75f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ipa/pr88214.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void i();
+  short a;
+  void b(e) char * e;
+  {
+    i();
+    b(a);
+  }