From: James Van Artsdalen <jrv@gnu.org>
Date: Thu, 17 Sep 1992 05:20:26 +0000 (+0000)
Subject: (addsi3,ashlsi3): Handle the case where the stack pointer appears as an
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=442426450eaaabd3136578270ca3443004510f28;p=gcc.git

(addsi3,ashlsi3): Handle the case where the stack pointer appears as an
index reg.

From-SVN: r2140
---

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6ba86cd2629..2d2f28eb579 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -1392,8 +1392,20 @@
       if (! TARGET_486 || ! REG_P (operands[2]))
         {
 	  CC_STATUS_INIT;
-	  operands[1] = SET_SRC (PATTERN (insn));
-	  return AS2 (lea%L0,%a1,%0);
+
+	  if (operands[2] == stack_pointer_rtx)
+	    {
+	      rtx temp;
+
+	      temp = operands[1];
+	      operands[1] = operands[2];
+	      operands[2] = temp;
+	    }
+	  if (operands[2] != stack_pointer_rtx)
+	    {
+	      operands[1] = SET_SRC (PATTERN (insn));
+	      return AS2 (lea%L0,%a1,%0);
+	    }
 	}
 
       output_asm_insn (AS2 (mov%L0,%1,%0), operands);
@@ -2391,6 +2403,12 @@
       else
         {
           CC_STATUS_INIT;
+
+	  if (operands[1] == stack_pointer_rtx)
+	    {
+	      output_asm_insn (AS2 (mov%L0,%1,%0), operands);
+	      operands[1] = operands[0];
+	    }
           operands[1] = gen_rtx (MULT, SImode, operands[1],
 				 GEN_INT (1 << INTVAL (operands[2])));
 	  return AS2 (lea%L0,%a1,%0);