From: Jim Wilson <wilson@gcc.gnu.org>
Date: Thu, 27 Feb 1992 02:36:26 +0000 (-0800)
Subject: *** empty log message ***
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3f07e47a8452c8308a8da8c5aa47e6a65b187a13;p=gcc.git

*** empty log message ***

From-SVN: r359
---

diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md
index 02776abbe27..f8f549578c6 100644
--- a/gcc/config/sparc/sparc.md
+++ b/gcc/config/sparc/sparc.md
@@ -790,11 +790,11 @@
   else if (GET_CODE (op1) == CONST_DOUBLE)
     {
       operands[0] = operand_subword (op0, 1, 0, DImode);
-      operands[1] = gen_rtx (CONST_INT, VOIDmode, CONST_DOUBLE_HIGH (op1));
+      operands[1] = gen_rtx (CONST_INT, VOIDmode, CONST_DOUBLE_LOW (op1));
       output_asm_insn (\"sethi %%hi(%a1),%0\", operands);
 
       operands[0] = operand_subword (op0, 0, 0, DImode);
-      operands[1] = gen_rtx (CONST_INT, VOIDmode, CONST_DOUBLE_LOW (op1));
+      operands[1] = gen_rtx (CONST_INT, VOIDmode, CONST_DOUBLE_HIGH (op1));
       output_asm_insn (singlemove_string (operands), operands);
     }
   else
@@ -824,7 +824,14 @@
 	(lo_sum:DI (match_operand:DI 1 "register_operand" "r")
 		   (match_operand:DI 2 "immediate_operand" "in")))]
   ""
-  "or %R1,%%lo(%a2),%R0"
+  "*
+{
+  /* Don't output a 64 bit constant, since we can't trust the assembler to
+     handle it correctly.  */
+  if (GET_CODE (operands[2]) == CONST_DOUBLE)
+    operands[2] = gen_rtx (CONST_INT, VOIDmode, CONST_DOUBLE_LOW (operands[2]));
+  return \"or %R1,%%lo(%a2),%R0\";
+}"
   ;; Need to set length for this arith insn because operand2
   ;; is not an "arith_operand".
   [(set_attr "length" "1")])
diff --git a/gcc/unroll.c b/gcc/unroll.c
index 249099afded..86c229df14c 100644
--- a/gcc/unroll.c
+++ b/gcc/unroll.c
@@ -1461,8 +1461,10 @@ copy_loop_body (copy_start, copy_end, map, exit_label, last_iteration,
 	      for (tv = bl->giv; tv; tv = tv->next_iv)
 		if (tv->giv_type == DEST_ADDR && tv->same == v)
 		  {
+		    /* Increment the giv by the amount that was calculated in
+		       find_splittable_givs, and saved in add_val.  */
 		    tv->dest_reg = plus_constant (tv->dest_reg,
-						  INTVAL (giv_inc));
+						  INTVAL (tv->add_val));
 		    *tv->location = tv->dest_reg;
 		    
 		    if (last_iteration && unroll_type != UNROLL_COMPLETELY)
@@ -2596,7 +2598,14 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment,
 		      addr_combined_regs[REGNO (v->new_reg)] = v;
 		    }
 		}
-	      
+
+	      /* Overwrite the old add_val, which is no longer needed, and
+		 substitute the amount that the giv is incremented on each
+		 iteration.  We need to save this somewhere, so we know how
+		 much to increment split DEST_ADDR giv's in copy_loop_body.  */
+
+	      v->add_val = giv_inc;
+
 	      if (loop_dump_stream)
 		fprintf (loop_dump_stream, "DEST_ADDR giv being split.\n");
 	    }