From 57e28d7d7659ab3102d38deba7f02a687aa316d8 Mon Sep 17 00:00:00 2001
From: Diego Novillo <dnovillo@redhat.com>
Date: Sat, 18 Sep 2004 13:56:23 +0000
Subject: [PATCH] tree-ssa-alias.c (setup_pointers_and_addressables): Don't
remove TREE_ADDRESSABLE from RESULT_DECL.
* tree-ssa-alias.c (setup_pointers_and_addressables): Don't
remove TREE_ADDRESSABLE from RESULT_DECL.
testsuite/ChangeLog
* g++.dg/tree-ssa/pr17153.C: New test.
From-SVN: r87703
---
gcc/ChangeLog | 5 +++++
gcc/testsuite/ChangeLog | 4 ++++
gcc/testsuite/g++.dg/tree-ssa/pr17153.C | 17 +++++++++++++++++
gcc/tree-ssa-alias.c | 1 +
4 files changed, 27 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/tree-ssa/pr17153.C
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5981fed67f9f..8ac669211072 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-09-18 Diego Novillo <dnovillo@redhat.com>
+
+ * tree-ssa-alias.c (setup_pointers_and_addressables): Don't
+ remove TREE_ADDRESSABLE from RESULT_DECL.
+
2004-09-18 Diego Novillo <dnovillo@redhat.com>
* tree-ssa-alias.c (dump_alias_info): Ignore NULL SSA_NAMEs.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ddc44e64cdfb..4bb46044e199 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2004-09-18 Diego Novillo <dnovillo@redhat.com>
+
+ * g++.dg/tree-ssa/pr17153.C: New test.
+
2004-09-16 Geoffrey Keating <geoffk@apple.com>
PR pch/13361
diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr17153.C b/gcc/testsuite/g++.dg/tree-ssa/pr17153.C
new file mode 100644
index 000000000000..91b4cfe1503e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr17153.C
@@ -0,0 +1,17 @@
+/* The alias analyzer was marking RETVAL non-addressable, but RETVAL
+ is a special variable that's available across different functions. */
+void foo(const char*);
+
+struct A {};
+
+struct B : A
+{
+ B(){}
+ B bar()
+ {
+ foo(__PRETTY_FUNCTION__);
+ return B();
+ };
+};
+
+B b=B().bar();
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c
index 34d9bb04212a..baf5ff276960 100644
--- a/gcc/tree-ssa-alias.c
+++ b/gcc/tree-ssa-alias.c
@@ -1347,6 +1347,7 @@ setup_pointers_and_addressables (struct alias_info *ai)
{
if (!bitmap_bit_p (ai->addresses_needed, v_ann->uid)
&& v_ann->mem_tag_kind == NOT_A_TAG
+ && TREE_CODE (var) != RESULT_DECL
&& !is_global_var (var))
{
/* The address of VAR is not needed, remove the
--
GitLab