From: Jim Wilson <wilson@cygnus.com>
Date: Tue, 14 Apr 1998 14:56:05 +0000 (+0000)
Subject: Fix mips64vr4100-elf build failure.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cf877a4216dc79e7c416060aed7d8dc52969a5ae;p=gcc.git

Fix mips64vr4100-elf build failure.

	* mips.md (reload_outdi): Change the scratch mode from DImode to
	TImode.  New variable scratch, used instead of operand[2] in template.
	Add code for MIPS16 HILO_REGNUM case where output reg is not M16_REG_P.

From-SVN: r19210
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c1fa5eef928..456424e01f8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+Tue Apr 14 14:55:16 1998  Jim Wilson  <wilson@cygnus.com>
+
+	* mips.md (reload_outdi): Change the scratch mode from DImode to
+	TImode.  New variable scratch, used instead of operand[2] in template.
+	Add code for MIPS16 HILO_REGNUM case where output reg is not M16_REG_P.
+
 Tue Apr 14 16:19:03 1998  Michael Meissner  <meissner@cygnus.com>
 
 	* expr.c (MOVE_RATIO): Set to 3 if optimizing for space.
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index e6a750f812e..25c7239a9b0 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -4639,20 +4639,25 @@ move\\t%0,%z4\\n\\
 
 ;; Handle output reloads in DImode.
 
+;; Reloading HILO_REG in MIPS16 mode requires two scratch registers, so we
+;; use a TImode scratch reg.
+
 (define_expand "reload_outdi"
   [(set (match_operand:DI 0 "general_operand" "=b")
 	(match_operand:DI 1 "se_register_operand" "b"))
-   (clobber (match_operand:DI 2 "register_operand" "=&d"))]
+   (clobber (match_operand:TI 2 "register_operand" "=&d"))]
   "TARGET_64BIT"
   "
 {
+  rtx scratch = gen_rtx_REG (DImode, REGNO (operands[2]));
+
   if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) == HILO_REGNUM)
     {
-      emit_insn (gen_ashrdi3 (operands[2], operands[1], GEN_INT (32)));
-      emit_insn (gen_movdi (gen_rtx (REG, DImode, 64), operands[2]));
-      emit_insn (gen_ashldi3 (operands[2], operands[1], GEN_INT (32)));
-      emit_insn (gen_ashrdi3 (operands[2], operands[2], GEN_INT (32)));
-      emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), operands[2]));
+      emit_insn (gen_ashrdi3 (scratch, operands[1], GEN_INT (32)));
+      emit_insn (gen_movdi (gen_rtx (REG, DImode, 64), scratch));
+      emit_insn (gen_ashldi3 (scratch, operands[1], GEN_INT (32)));
+      emit_insn (gen_ashrdi3 (scratch, scratch, GEN_INT (32)));
+      emit_insn (gen_movdi (gen_rtx (REG, DImode, 65), scratch));
       DONE;
     }
   if (GET_CODE (operands[1]) == REG && REGNO (operands[1]) == HILO_REGNUM)
@@ -4680,20 +4685,34 @@ move\\t%0,%z4\\n\\
 	  emit_move_insn (scratch, gen_rtx (REG, SImode, 65));
 	  emit_move_insn (loword, scratch);
 	}
+      else if (TARGET_MIPS16 && ! M16_REG_P (REGNO (operands[0])))
+	{
+	  /* Handle the case where operand[0] is not a 'd' register,
+	     and hence we can not directly move from the HILO register
+	     into it.  */
+	  rtx scratch2 = gen_rtx_REG (DImode, REGNO (operands[2]) + 1);
+	  emit_insn (gen_movdi (scratch, gen_rtx (REG, DImode, 65)));
+	  emit_insn (gen_ashldi3 (scratch, scratch, GEN_INT (32)));
+	  emit_insn (gen_lshrdi3 (scratch, scratch, GEN_INT (32)));
+	  emit_insn (gen_movdi (scratch2, gen_rtx (REG, DImode, 64)));
+	  emit_insn (gen_ashldi3 (scratch2, scratch2, GEN_INT (32)));
+	  emit_insn (gen_iordi3 (scratch, scratch, scratch2));
+	  emit_insn (gen_movdi (operands[0], scratch));
+	}
       else
 	{
-	  emit_insn (gen_movdi (operands[2], gen_rtx (REG, DImode, 65)));
-	  emit_insn (gen_ashldi3 (operands[2], operands[2], GEN_INT (32)));
-	  emit_insn (gen_lshrdi3 (operands[2], operands[2], GEN_INT (32)));
+	  emit_insn (gen_movdi (scratch, gen_rtx (REG, DImode, 65)));
+	  emit_insn (gen_ashldi3 (scratch, scratch, GEN_INT (32)));
+	  emit_insn (gen_lshrdi3 (scratch, scratch, GEN_INT (32)));
 	  emit_insn (gen_movdi (operands[0], gen_rtx (REG, DImode, 64)));
 	  emit_insn (gen_ashldi3 (operands[0], operands[0], GEN_INT (32)));
-	  emit_insn (gen_iordi3 (operands[0], operands[0], operands[2]));
+	  emit_insn (gen_iordi3 (operands[0], operands[0], scratch));
 	}
       DONE;
     }
   /* This handles moves between a float register and HI/LO.  */
-  emit_move_insn (operands[2], operands[1]);
-  emit_move_insn (operands[0], operands[2]);
+  emit_move_insn (scratch, operands[1]);
+  emit_move_insn (operands[0], scratch);
   DONE;
 }")