PR tree-optimization/47276

	* ipa.c (function_and_variable_visibility): Do not try to mark alias
	declarations as needed.
	* gcc.dg/pr47276.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168844 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f9e9b35..610507b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-01-13  Jan Hubicka  <jh@suse.cz>
+
+       PR tree-optimization/47276 
+       * ipa.c (function_and_variable_visibility): Do not try to mark alias
+       declarations as needed.
+
 2011-01-15  Martin Jambor  <mjambor@suse.cz>
 
        * common.opt (fdevirtualize): New flag.

diff --git a/gcc/ipa.c b/gcc/ipa.c
index fa39f92..0320ded 100644 (file)
--- a/gcc/ipa.c
+++ b/gcc/ipa.c
@@ -847,6 +847,8 @@ function_and_variable_visibility (bool whole_program)
       if ((node = cgraph_node_for_asm (p->target)) != NULL
          && !DECL_EXTERNAL (node->decl))
         {
+         if (!node->analyzed)
+           continue;
          /* Weakrefs alias symbols from other compilation unit.  In the case
             the destination of weakref became available because of LTO, we must
             mark it as needed.  */

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b30e532..d95034f 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-01-13  Jan Hubicka  <jh@suse.cz>
+
+       PR tree-optimization/47276 
+       * gcc.dg/pr47276.c: New testcase.
+
 2011-01-15  Giovanni Funchal  <gafunchal@gmail.com>
            Jonathan Wakely  <jwakely.gcc@gmail.com>
 

diff --git a/gcc/testsuite/gcc.dg/pr47276.c b/gcc/testsuite/gcc.dg/pr47276.c
new file mode 100644 (file)
index 0000000..ae1e81a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47276.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-require-alias "" } */
+extern void syslog (int __pri, __const char *__fmt, ...)
+     __attribute__ ((__format__ (__printf__, 2, 3)));
+extern void vsyslog (int __pri, __const char *__fmt, int __ap)
+     __attribute__ ((__format__ (__printf__, 2, 0)));
+void
+__vsyslog(int pri, const char *fmt, int ap)
+{
+}
+void
+__syslog_chk(int pri, int flag, const char *fmt, ...)
+{
+}
+void
+__vsyslog_chk(int pri, int flag, const char *fmt, int ap)
+{
+}
+extern __typeof (__vsyslog_chk) __EI___vsyslog_chk __asm__("" "__vsyslog_chk"); extern __typeof (__vsyslog_chk) __EI___vsyslog_chk __attribute__((alias ("" "__GI___vsyslog_chk")));
+void
+__syslog(int pri, const char *fmt, ...)
+{
+}
+extern __typeof (__syslog) syslog __attribute__ ((alias ("__syslog")));
+extern __typeof (syslog) __EI_syslog __asm__("" "syslog"); extern __typeof (syslog) __EI_syslog __attribute__((alias ("" "__GI_syslog")));
+extern __typeof (__vsyslog) vsyslog __attribute__ ((alias ("__vsyslog")));
+extern __typeof (vsyslog) __EI_vsyslog __asm__("" "vsyslog"); extern __typeof (vsyslog) __EI_vsyslog __attribute__((alias ("" "__GI_vsyslog")));
+extern __typeof (syslog) syslog __asm__ ("" "__GI_syslog") __attribute__ ((visibility ("hidden")));
+extern __typeof (vsyslog) vsyslog __asm__ ("" "__GI_vsyslog") __attribute__ ((visibility ("hidden")));
+extern __typeof (__vsyslog_chk) __vsyslog_chk __asm__ ("" "__GI___vsyslog_chk") __attribute__ ((visibility ("hidden")));