i386.c (ix86_code_end): Set DECL_IGNORED_P on the pc thunk.

	* config/i386/i386.c (ix86_code_end): Set DECL_IGNORED_P on the
	pc thunk.
	* dwarf2out.c (output_aranges): Skip DECL_IGNORED_P functions.
	(dwarf2out_finish): Likewise.

From-SVN: r187105

gcc/ChangeLog

+2012-05-03  Jason Merrill  <jason@redhat.com>
+
+	* config/i386/i386.c (ix86_code_end): Set DECL_IGNORED_P on the
+	pc thunk.
+	* dwarf2out.c (output_aranges): Skip DECL_IGNORED_P functions.
+	(dwarf2out_finish): Likewise.
+
 2012-05-03  Martin Jambor  <mjambor@suse.cz>
 
 	* builtins.c (get_object_alignment_1): Return whether we can determine

gcc/config/i386/i386.c

@@ -8619,6 +8619,7 @@ ix86_code_end (void)
 				       NULL_TREE, void_type_node);
       TREE_PUBLIC (decl) = 1;
       TREE_STATIC (decl) = 1;
+      DECL_IGNORED_P (decl) = 1;
 
 #if TARGET_MACHO
       if (TARGET_MACHO)

gcc/dwarf2out.c

@@ -8085,6 +8085,8 @@ output_aranges (unsigned long aranges_length)
 
       FOR_EACH_VEC_ELT (dw_fde_ref, fde_vec, fde_idx, fde)
 	{
+	  if (DECL_IGNORED_P (fde->decl))
+	    continue;
 	  if (!fde->in_std_section)
 	    {
 	      dw2_asm_output_addr (DWARF2_ADDR_SIZE, fde->dw_fde_begin,
@@ -21897,6 +21899,8 @@ dwarf2out_finish (const char *filename)
 
       FOR_EACH_VEC_ELT (dw_fde_ref, fde_vec, fde_idx, fde)
 	{
+	  if (DECL_IGNORED_P (fde->decl))
+	    continue;
 	  if (!fde->in_std_section)
 	    add_ranges_by_labels (comp_unit_die (), fde->dw_fde_begin,
 				  fde->dw_fde_end, &range_list_added);

gcc/testsuite/ChangeLog

+2012-05-03  Jason Merrill  <jason@redhat.com>
+
+	* g++.dg/debug/dwarf2/thunk1.C: New.
+
 2012-05-03  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/53186

gcc/testsuite/g++.dg/debug/dwarf2/thunk1.C

+// Test that we don't add the x86 PC thunk to .debug_ranges
+// { dg-do compile { target i?86-*-* } }
+// { dg-options "-g -fpic" }
+// { dg-final { scan-assembler-times "LFB3" 1 } }
+
+template <class T> void f(T t) { }
+
+int main()
+{
+  f(42);
+}