From: Jeff Law <law@gcc.gnu.org>
Date: Thu, 22 May 1997 05:35:37 +0000 (-0600)
Subject: * mn10300.md (reload_insi): Handle SUBREG properly.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bb75a000abe6aa89c3544435ce56bebb6da69167;p=gcc.git

* mn10300.md (reload_insi): Handle SUBREG properly.

From-SVN: r14109
---

diff --git a/gcc/config/mn10300/mn10300.md b/gcc/config/mn10300/mn10300.md
index 40d3868721f..8fab7c11bf1 100644
--- a/gcc/config/mn10300/mn10300.md
+++ b/gcc/config/mn10300/mn10300.md
@@ -167,12 +167,26 @@
   if (XEXP (operands[1], 0) == stack_pointer_rtx)
     {
       emit_move_insn (operands[0], XEXP (operands[1], 0));
-      emit_move_insn (operands[2], XEXP (operands[1], 1));
+      if (GET_CODE (XEXP (operands[1], 1)) == SUBREG
+	  && (GET_MODE_SIZE (GET_MODE (XEXP (operands[1], 1)))
+	      > GET_MODE_SIZE (GET_MODE (SUBREG_REG (XEXP (operands[1], 1))))))
+	emit_move_insn (operands[2],
+			gen_rtx (ZERO_EXTEND, GET_MODE (XEXP (operands[1], 1)),
+				 SUBREG_REG (XEXP (operands[1], 1))));
+      else
+	emit_move_insn (operands[2], XEXP (operands[1], 1));
     }
   else
     {
       emit_move_insn (operands[0], XEXP (operands[1], 1));
-      emit_move_insn (operands[2], XEXP (operands[1], 0));
+      if (GET_CODE (XEXP (operands[1], 0)) == SUBREG
+	  && (GET_MODE_SIZE (GET_MODE (XEXP (operands[1], 0)))
+	      > GET_MODE_SIZE (GET_MODE (SUBREG_REG (XEXP (operands[1], 0))))))
+	emit_move_insn (operands[2],
+			gen_rtx (ZERO_EXTEND, GET_MODE (XEXP (operands[1], 0)),
+				 SUBREG_REG (XEXP (operands[1], 0))));
+      else
+	emit_move_insn (operands[2], XEXP (operands[1], 0));
     }
   emit_insn (gen_addsi3 (operands[0], operands[0], operands[2]));
   DONE;