From: Richard Kenner <kenner@gcc.gnu.org>
Date: Thu, 23 Jun 1994 23:25:10 +0000 (-0400)
Subject: (movsf): Only generate stack temporary if used.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f6ba0600ffc9a3035a121b50fffcf90754a342f5;p=gcc.git

(movsf): Only generate stack temporary if used.

From-SVN: r7552
---

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 1f287253605..747355ade64 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -3763,8 +3763,6 @@
 
   if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) < 32)
     {
-      rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
-
       /* If this is a store to memory or another integer register do the
 	 move directly.  Otherwise store to a temporary stack slot and
 	 load from there into a floating point register.  */
@@ -3779,10 +3777,14 @@
 			  operand_subword (operands[1], 0, 0, SFmode));
 	  DONE;
 	}
+      else
+	{
+	  rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
 
-      emit_move_insn (stack_slot, operands[1]);
-      emit_move_insn (operands[0], stack_slot);
-      DONE;
+	  emit_move_insn (stack_slot, operands[1]);
+	  emit_move_insn (operands[0], stack_slot);
+	  DONE;
+	}
     }
 
   if (GET_CODE (operands[0]) == MEM)
@@ -3790,8 +3792,6 @@
 
   if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) < 32)
     {
-      rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
-
       if (GET_CODE (operands[1]) == MEM
 #if HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT && ! defined(REAL_IS_NOT_DOUBLE)
 	  || GET_CODE (operands[1]) == CONST_DOUBLE
@@ -3805,10 +3805,14 @@
 			  operand_subword (operands[1], 0, 0, SFmode));
 	  DONE;
 	}
+      else
+	{
+	  rtx stack_slot = assign_stack_temp (SFmode, 4, 0);
 
-      emit_move_insn (stack_slot, operands[1]);
-      emit_move_insn (operands[0], stack_slot);
-      DONE;
+	  emit_move_insn (stack_slot, operands[1]);
+	  emit_move_insn (operands[0], stack_slot);
+	  DONE;
+	}
     }
 
   if (CONSTANT_P (operands[1]))