* dwarf2dbg.c (dwarf2_consume_line_info): New.

(dwarf2_emit_insn): Use it here.
	(dwarf2_directive_loc): Fix check for consecutive .loc directives
	when debug_type is DEBUG_DWARF2.
	* dwarf2dbg.h (dwarf2_consume_line_info): New prototype.
	* config/tc-ia64.c (ia64_flush_insns): Call dwarf2_consume_line_info.
	(md_assemble): Likewise.
testsuite/
	* gas/lns/lns.exp: Run lns-common-1 with alternate source for ia64.
	* gas/lns/lns-common-1-ia64.s: New file.

gas/ChangeLog

@@ -1,3 +1,13 @@
+2007-11-19  Bob Wilson  <bob.wilson@acm.org>
+	
+	* dwarf2dbg.c (dwarf2_consume_line_info): New.
+	(dwarf2_emit_insn): Use it here.
+	(dwarf2_directive_loc): Fix check for consecutive .loc directives
+	when debug_type is DEBUG_DWARF2.
+	* dwarf2dbg.h (dwarf2_consume_line_info): New prototype.
+	* config/tc-ia64.c (ia64_flush_insns): Call dwarf2_consume_line_info.
+	(md_assemble): Likewise.
+	
 2007-11-17  Thiemo Seufer  <ths@mips.com>
 
 	* config/tc-mips.c (md_parse_option): Match mips_optimize to the -O

gas/config/tc-ia64.c

@@ -1132,6 +1132,7 @@ ia64_flush_insns ()
       dwarf2_where (&CURR_SLOT.debug_line);
       CURR_SLOT.debug_line.flags |= DWARF2_FLAG_BASIC_BLOCK;
       dwarf2_gen_line_info (frag_now_fix (), &CURR_SLOT.debug_line);
+      dwarf2_consume_line_info ();
     }
   CURR_SLOT.label_fixups = 0;
 
@@ -10968,6 +10969,7 @@ md_assemble (str)
   CURR_SLOT.idesc = idesc;
   as_where (&CURR_SLOT.src_file, &CURR_SLOT.src_line);
   dwarf2_where (&CURR_SLOT.debug_line);
+  dwarf2_consume_line_info ();
 
   /* Add unwind entries, if there are any.  */
   if (unwind.current_entry)

gas/dwarf2dbg.c

@@ -373,11 +373,6 @@ dwarf2_emit_insn (int size)
 	or the physical input file name (foo.s) and not the file name
 	specified in the most recent .loc directive (eg foo.h).  */
       loc = current;
-
-      /* Unless we generate DWARF2 debugging information for each
-	 assembler line, we only emit one line symbol for one LOC.  */
-      if (debug_type != DEBUG_DWARF2)
-	loc_directive_seen = FALSE;
     }
   else if (debug_type != DEBUG_DWARF2)
     return;
@@ -385,6 +380,21 @@ dwarf2_emit_insn (int size)
     dwarf2_where (&loc);
 
   dwarf2_gen_line_info (frag_now_fix () - size, &loc);
+  dwarf2_consume_line_info ();
+}
+
+/* Called after the current line information has been either used with
+   dwarf2_gen_line_info or saved with a machine instruction for later use.
+   This resets the state of the line number information to reflect that
+   it has been used.  */
+
+void
+dwarf2_consume_line_info (void)
+{
+  /* Unless we generate DWARF2 debugging information for each
+     assembler line, we only emit one line symbol for one LOC.  */
+  if (debug_type != DEBUG_DWARF2)
+    loc_directive_seen = FALSE;
 
   current.flags &= ~(DWARF2_FLAG_BASIC_BLOCK
 		     | DWARF2_FLAG_PROLOGUE_END
@@ -572,7 +582,7 @@ dwarf2_directive_loc (int dummy ATTRIBUTE_UNUSED)
 
   /* If we see two .loc directives in a row, force the first one to be
      output now.  */
-  if (loc_directive_seen)
+  if (loc_directive_seen && debug_type != DEBUG_DWARF2)
     dwarf2_emit_insn (0);
 
   filenum = get_absolute_expression ();

gas/dwarf2dbg.h

@@ -72,6 +72,10 @@ extern void dwarf2_gen_line_info (addressT addr, struct dwarf2_line_info *l);
 /* Must be called for each generated instruction.  */
 extern void dwarf2_emit_insn (int);
 
+/* Reset the state of the line number information to reflect that
+   it has been used.  */
+extern void dwarf2_consume_line_info (void);
+
 /* Should be called for each code label.  */
 extern void dwarf2_emit_label (symbolS *);
 

gas/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2007-11-19  Bob Wilson  <bob.wilson@acm.org>
+	
+	* gas/lns/lns.exp: Run lns-common-1 with alternate source for ia64.
+	* gas/lns/lns-common-1-ia64.s: New file.
+	
 2007-11-14  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gas/ia64/dv-raw-err.s: Add tests for ar.ruc.

gas/testsuite/gas/lns/lns-common-1-ia64.s

@@ -0,0 +1,16 @@
+	.file 1 "foo.c"
+	.loc 1 1
+	.explicit
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 2 3
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 3 prologue_end
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 4 0 epilogue_begin
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 5 isa 1 basic_block
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 6 is_stmt 0
+	{ .mii; nop 0; nop 0; nop 0 ;; }
+	.loc 1 7 is_stmt 1
+	{ .mii; nop 0; nop 0; nop 0 ;; }

gas/testsuite/gas/lns/lns.exp

@@ -13,7 +13,6 @@ run_dump_test "lns-duplicate"
 # information (d10v).
 if {
         ![istarget d10v-*-*]
-     && ![istarget ia64*-*-*]
      && ![istarget i370-*-*]
      && ![istarget i960-*-*]
      && ![istarget mcore-*-*]
@@ -23,6 +22,8 @@ if {
     # Use alternate file for targets using DW_LNS_fixed_advance_pc opcodes.
     if { [istarget xtensa-*-*] } {
       run_dump_test "lns-common-1-alt"
+    } elseif { [istarget ia64*-*-*] } {
+      run_dump_test "lns-common-1" { { source "lns-common-1-ia64.s" } }
     } else {
       run_dump_test "lns-common-1"
     }