cgraph.h (decl_in_symtab_p): Revert check DECL_IN_CONSTANT_POOL.

	gcc/
	* cgraph.h (decl_in_symtab_p): Revert check DECL_IN_CONSTANT_POOL.

	gcc/testsuite/
	* gcc.dg/alias-15.c: Revert.

From-SVN: r231931

gcc/ChangeLog

 2015-12-23  Nathan Sidwell  <nathan@acm.org>
 
+	* cgraph.h (decl_in_symtab_p): Revert check DECL_IN_CONSTANT_POOL.
+
+2015-12-23  Nathan Sidwell  <nathan@acm.org>
+
 	* config/nvptx/nvptx-protos.h
 	(nvptx_maybe_convert_symbolic_operand): Delete prototype.
 	* config/nvptx/nvptx.c (nvptx_maybe_convert_symbolic_operand): Delete.

gcc/cgraph.h

@@ -2294,19 +2294,13 @@ symtab_node::real_symbol_p (void)
 }
 
 /* Return true if DECL should have entry in symbol table if used.
-   Those are functions and static & external non-constpool variables.
-   We do not expect constant pool variables in the varpool, as they're
-   not related to other variables, and simply lazily inserting them
-   using the regular interface results in varpool thinking they are
-   externally provided -- which results in erroneous assembly emission
-   as an undefined decl.  */
+   Those are functions and static & external veriables*/
 
 static inline bool
 decl_in_symtab_p (const_tree decl)
 {
   return (TREE_CODE (decl) == FUNCTION_DECL
           || (TREE_CODE (decl) == VAR_DECL
-	      && !DECL_IN_CONSTANT_POOL (decl)
 	      && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))));
 }
 

gcc/testsuite/ChangeLog

+2015-12-23  Nathan Sidwell  <nathan@acm.org>
+
+	* gcc.dg/alias-15.c: Revert.
+
 2015-12-23  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	PR testsuite/68232

gcc/testsuite/gcc.dg/alias-15.c

-/* { dg-do compile } */
-/* { dg-additional-options  "-O2 -fdump-ipa-cgraph" } */
-
-/* RTL-level CSE shouldn't introduce LCO (for the string) into varpool */
-char *p;
-
-void foo ()
-{
-  p = "abc\n";
-
-  while (*p != '\n')
-    p++;
-}
-
-/* { dg-final { scan-ipa-dump-not "LC0" "cgraph" } } */