re PR target/55033 (PowerPC section type conflict error)

	PR target/55033
	* varasm.c (default_elf_select_section): Move !DECL_P check..
	(get_named_section): ..to here before calling get_section_name.
	Adjust assertion.
	(default_section_type_flags): Add DECL_P check.
	* config/i386/winnt.c (i386_pe_section_type_flags): Likewise.
	* config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags): Likewise.

From-SVN: r198762

gcc/ChangeLog

+2013-05-10  Alan Modra  <amodra@gmail.com>
+
+	PR target/55033
+	* varasm.c (default_elf_select_section): Move !DECL_P check..
+	(get_named_section): ..to here before calling get_section_name.
+	Adjust assertion.
+	(default_section_type_flags): Add DECL_P check.
+	* config/i386/winnt.c (i386_pe_section_type_flags): Likewise.
+	* config/rs6000/rs6000.c (rs6000_xcoff_section_type_flags): Likewise.
+
 2013-05-09  Joern Rennecke  <joern.rennecke@embecosm.com>
 
 	* config/epiphany/epiphany.c (epiphany_expand_prologue):

gcc/config/i386/winnt.c

@@ -476,7 +476,7 @@ i386_pe_section_type_flags (tree decl, const char *name, int reloc)
 	flags |= SECTION_PE_SHARED;
     }
 
-  if (decl && DECL_ONE_ONLY (decl))
+  if (decl && DECL_P (decl) && DECL_ONE_ONLY (decl))
     flags |= SECTION_LINKONCE;
 
   /* See if we already have an entry for this section.  */

gcc/config/rs6000/rs6000.c

@@ -26029,7 +26029,7 @@ rs6000_xcoff_section_type_flags (tree decl, const char *name, int reloc)
   unsigned int flags = default_section_type_flags (decl, name, reloc);
 
   /* Align to at least UNIT size.  */
-  if (flags & SECTION_CODE || !decl)
+  if ((flags & SECTION_CODE) != 0 || !decl || !DECL_P (decl))
     align = MIN_UNITS_PER_WORD;
   else
     /* Increase alignment of large objects if not already stricter.  */

gcc/varasm.c

@@ -402,12 +402,16 @@ get_named_section (tree decl, const char *name, int reloc)
 {
   unsigned int flags;
 
-  gcc_assert (!decl || DECL_P (decl));
   if (name == NULL)
-    name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl));
+    {
+      gcc_assert (decl && DECL_P (decl) && DECL_SECTION_NAME (decl));
+      name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl));
+    }
 
   flags = targetm.section_type_flags (decl, name, reloc);
 
+  if (decl && !DECL_P (decl))
+    decl = NULL_TREE;
   return get_section (name, flags, decl);
 }
 
@@ -5990,7 +5994,7 @@ default_section_type_flags (tree decl, const char *name, int reloc)
 	flags |= SECTION_RELRO;
     }
 
-  if (decl && DECL_ONE_ONLY (decl))
+  if (decl && DECL_P (decl) && DECL_ONE_ONLY (decl))
     flags |= SECTION_LINKONCE;
 
   if (decl && TREE_CODE (decl) == VAR_DECL && DECL_THREAD_LOCAL_P (decl))
@@ -6349,8 +6353,6 @@ default_elf_select_section (tree decl, int reloc,
       gcc_unreachable ();
     }
 
-  if (!DECL_P (decl))
-    decl = NULL_TREE;
   return get_named_section (decl, sname, reloc);
 }