arm.md (UNSPEC_PROLOGUE_USE): Rename this...

        * config/arm/arm.md (UNSPEC_PROLOGUE_USE): Rename this...
        (UNSPEC_REGISTER_USE): ... to this.
        (prologue_use): Rename this...
	  (force_register_use): ... to this and update output assembly.
        (epilogue) Rename gen_prologue_use to gen_force_register_use.
        * config/arm/arm.c (arm_expand_prologue): Likewise.
        (thumb1_expand_epilogue): Likewise.
        (arm_expand_epilogue): Likewise.
        (arm_expand_epilogue): Likewise.

From-SVN: r192533

gcc/ChangeLog

+2012-10-17  Greta Yorsh  <Greta.Yorsh@arm.com>
+
+        * config/arm/arm.md (UNSPEC_PROLOGUE_USE): Rename this...
+        (UNSPEC_REGISTER_USE): ... to this.
+        (prologue_use): Rename this...
+	  (force_register_use): ... to this and update output assembly.
+        (epilogue) Rename gen_prologue_use to gen_force_register_use.
+        * config/arm/arm.c (arm_expand_prologue): Likewise.
+        (thumb1_expand_epilogue): Likewise.
+        (arm_expand_epilogue): Likewise.
+        (arm_expand_epilogue): Likewise.
+
 2012-10-17  Georg-Johann Lay  <avr@gjlay.de>
 
 	* config/avr/avr-arch.h (avr_extra_arch_macro): Remove prototype.

gcc/config/arm/arm.c

@@ -16732,7 +16732,7 @@ arm_expand_prologue (void)
 		}
 	      emit_set_insn (ip_rtx, insn);
 	      /* Add a USE to stop propagate_one_insn() from barfing.  */
-	      emit_insn (gen_prologue_use (ip_rtx));
+	      emit_insn (gen_force_register_use (ip_rtx));
 	    }
 	}
       else
@@ -22621,7 +22621,7 @@ thumb1_expand_epilogue (void)
 
   /* Emit a USE (stack_pointer_rtx), so that
      the stack adjustment will not be deleted.  */
-  emit_insn (gen_prologue_use (stack_pointer_rtx));
+  emit_insn (gen_force_register_use (stack_pointer_rtx));
 
   if (crtl->profile || !TARGET_SCHED_PROLOG)
     emit_insn (gen_blockage ());
@@ -22845,7 +22845,7 @@ arm_expand_epilogue (bool really_return)
 
           /* Emit USE(stack_pointer_rtx) to ensure that stack adjustment is not
              deleted.  */
-          emit_insn (gen_prologue_use (stack_pointer_rtx));
+          emit_insn (gen_force_register_use (stack_pointer_rtx));
         }
       else
         {
@@ -22863,7 +22863,7 @@ arm_expand_epilogue (bool really_return)
           emit_insn (gen_movsi (stack_pointer_rtx, hard_frame_pointer_rtx));
           /* Emit USE(stack_pointer_rtx) to ensure that stack adjustment is not
              deleted.  */
-          emit_insn (gen_prologue_use (stack_pointer_rtx));
+          emit_insn (gen_force_register_use (stack_pointer_rtx));
         }
     }
   else
@@ -22881,7 +22881,7 @@ arm_expand_epilogue (bool really_return)
                                  GEN_INT (amount)));
           /* Emit USE(stack_pointer_rtx) to ensure that stack adjustment is
              not deleted.  */
-          emit_insn (gen_prologue_use (stack_pointer_rtx));
+          emit_insn (gen_force_register_use (stack_pointer_rtx));
         }
     }
 

gcc/config/arm/arm.md

@@ -76,7 +76,7 @@
                         ; that points at the containing instruction.
   UNSPEC_PRLG_STK       ; A special barrier that prevents frame accesses
                         ; being scheduled before the stack adjustment insn.
-  UNSPEC_PROLOGUE_USE   ; As USE insns are not meaningful after reload,
+  UNSPEC_REGISTER_USE   ; As USE insns are not meaningful after reload,
                         ; this unspec is used to prevent the deletion of
                         ; instructions setting registers for EH handling
                         ; and stack frame generation.  Operand 0 is the
@@ -10610,7 +10610,7 @@
   "TARGET_EITHER"
   "
   if (crtl->calls_eh_return)
-    emit_insn (gen_prologue_use (gen_rtx_REG (Pmode, 2)));
+    emit_insn (gen_force_register_use (gen_rtx_REG (Pmode, 2)));
   if (TARGET_THUMB1)
    {
      thumb1_expand_epilogue ();
@@ -10644,7 +10644,7 @@
 ;; does not think that it is unused by the sibcall branch that
 ;; will replace the standard function epilogue.
 (define_expand "sibcall_epilogue"
-   [(parallel [(unspec:SI [(reg:SI LR_REGNUM)] UNSPEC_PROLOGUE_USE)
+   [(parallel [(unspec:SI [(reg:SI LR_REGNUM)] UNSPEC_REGISTER_USE)
                (unspec_volatile [(return)] VUNSPEC_EPILOGUE)])]
    "TARGET_32BIT"
    "
@@ -11260,10 +11260,10 @@
   ""
 )
 
-(define_insn "prologue_use"
-  [(unspec:SI [(match_operand:SI 0 "register_operand" "")] UNSPEC_PROLOGUE_USE)]
+(define_insn "force_register_use"
+  [(unspec:SI [(match_operand:SI 0 "register_operand" "")] UNSPEC_REGISTER_USE)]
   ""
-  "%@ %0 needed for prologue"
+  "%@ %0 needed"
   [(set_attr "length" "0")]
 )