From c283c989124ffc357ead798bdd5ef1635c8df0fa Mon Sep 17 00:00:00 2001
From: Richard Kenner <kenner@gcc.gnu.org>
Date: Wed, 8 Jul 1992 23:21:00 -0400
Subject: [PATCH] (floatsidf): Correctly handle case when SImode operand
 overlaps the first DFmode register.

From-SVN: r1537
---
 gcc/config/rs6000/rs6000.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 37cf481dff0..2c4dc8fc8e5 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -1887,6 +1887,14 @@
       emit_move_insn (operands[3], operands[4]);
       DONE;
     }
+
+  if (rtx_equal_p (operands[1], operands[3]))
+    {
+      rtx temp;
+
+      temp = operands[3]; operands[3] = operands[5]; operands[5] = temp;
+      temp = operands[4]; operands[4] = operands[1]; operands[1] = temp;
+    }
 }")
 
 (define_insn ""
-- 
2.30.2