final.c (output_in_slot): New global variable.

	* final.c (output_in_slot): New global variable.
	(final_scan_insn): Add new state '2' to the 'nopeepholes' parameter.
	Pass 2 as 'nopeepholes' to self for insns in a SEQUENCE.  Set
	'output_in_slot' before invoking output_asm_insn.
	(output_asm_insn): Add a space after the tab if 'output_in_slot'
	is set.
	* config/sparc/sparc.c (output_return): Pass 2 as 'nopeepholes' to
	final_scan_insn.
	(output_sibcall): Likewise.

From-SVN: r87056

gcc/ChangeLog

+2004-09-03  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	* final.c (output_in_slot): New global variable.
+	(final_scan_insn): Add new state '2' to the 'nopeepholes' parameter.
+	Pass 2 as 'nopeepholes' to self for insns in a SEQUENCE.  Set
+	'output_in_slot' before invoking output_asm_insn.
+	(output_asm_insn): Add a space after the tab if 'output_in_slot'
+	is set.
+	* config/sparc/sparc.c (output_return): Pass 2 as 'nopeepholes' to
+	final_scan_insn.
+	(output_sibcall): Likewise.
+
 2004-09-03  Jan Hubicka  <jh@suse.cz>
 
 	* tree-ssa-operands.c (fini_ssa_operands): ggc_free unused arrays.

gcc/config/sparc/sparc.c

@@ -4707,7 +4707,7 @@ output_return (rtx insn)
 	  if (! delay)
 	    abort ();
 
-	  final_scan_insn (delay, asm_out_file, 1, 0, 1, NULL);
+	  final_scan_insn (delay, asm_out_file, 1, 0, 2, NULL);
 	  PATTERN (delay) = gen_blockage ();
 	  INSN_CODE (delay) = -1;
 	}
@@ -4756,7 +4756,7 @@ output_return (rtx insn)
 	      epilogue_renumber (&pat, 0);
 	      fprintf (asm_out_file, "\treturn\t%%i7+%d\n",
 		       sparc_skip_caller_unimp ? 12 : 8);
-	      final_scan_insn (delay, asm_out_file, 1, 0, 1, NULL);
+	      final_scan_insn (delay, asm_out_file, 1, 0, 2, NULL);
 	    }
 	  else
 	    {
@@ -4817,7 +4817,7 @@ output_sibcall (rtx insn, rtx call_operand)
 
 	  output_asm_insn ("sethi\t%%hi(%a0), %%g1", operands);
 	  output_asm_insn ("jmp\t%%g1 + %%lo(%a0)", operands);
-	  final_scan_insn (delay, asm_out_file, 1, 0, 1, NULL);
+	  final_scan_insn (delay, asm_out_file, 1, 0, 2, NULL);
 
 	  PATTERN (delay) = gen_blockage ();
 	  INSN_CODE (delay) = -1;

gcc/final.c

@@ -200,6 +200,10 @@ static int app_on;
 
 rtx final_sequence;
 
+/* True if we are outputting insns in a delay slot.  This is used
+   to prettify the assembly.  */
+static bool output_in_slot;
+
 #ifdef ASSEMBLER_DIALECT
 
 /* Number of the assembler dialect to use, starting at 0.  */
@@ -1663,8 +1667,11 @@ scan_ahead_for_unlikely_executed_note (rtx insn)
    is the insn being scanned.
    Value returned is the next insn to be scanned.
 
-   NOPEEPHOLES is the flag to disallow peephole processing (currently
-   used for within delayed branch sequence output).
+   NOPEEPHOLES is used to disallow peephole processing:
+    - 0: peepholes are allowed,
+    - 1: peepholes are not allowed,
+    - 2: peepholes are not allowed and we are in the
+         slot of a delayed branch.
 
    SEEN is used to track the end of the prologue, for emitting
    debug information.  We force the emission of a line note after
@@ -1674,8 +1681,7 @@ scan_ahead_for_unlikely_executed_note (rtx insn)
 
 rtx
 final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
-		 int prescan, int nopeepholes ATTRIBUTE_UNUSED,
-		 int *seen)
+		 int prescan, int nopeepholes, int *seen)
 {
 #ifdef HAVE_cc0
   rtx set;
@@ -2195,7 +2201,7 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
 		/* We loop in case any instruction in a delay slot gets
 		   split.  */
 		do
-		  insn = final_scan_insn (insn, file, 0, prescan, 1, seen);
+		  insn = final_scan_insn (insn, file, 0, prescan, 2, seen);
 		while (insn != next);
 	      }
 #ifdef DBR_OUTPUT_SEQEND
@@ -2527,7 +2533,9 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
 #endif
 
 	/* Output assembler code from the template.  */
+	output_in_slot = (nopeepholes > 1);
 	output_asm_insn (template, recog_data.operand);
+	output_in_slot = false;
 
 	/* If necessary, report the effect that the instruction has on
 	   the unwind info.   We've already done this for delay slots
@@ -2988,6 +2996,8 @@ output_asm_insn (const char *template, rtx *operands)
   memset (opoutput, 0, sizeof opoutput);
   p = template;
   putc ('\t', asm_out_file);
+  if (output_in_slot)
+    putc (' ', asm_out_file);
 
 #ifdef ASM_OUTPUT_OPCODE
   ASM_OUTPUT_OPCODE (asm_out_file, p);