* loop.c (get_condition): Handle sign-extended constants.

From-SVN: r17590

* loop.c (get_condition): Handle sign-extended constants.
From-SVN: r17590
460f50dc · J"orn Rennecke · Jeff Law · db771a3c · 460f50dc · 460f50dc
Commit 460f50dc authored Feb 02, 1998 by J"orn Rennecke Committed by Jeff Law Feb 01, 1998
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gcc/ChangeLog
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gcc/loop.c
+4 -2

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+Mon Feb  2 01:38:39 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* loop.c (get_condition): Handle sign-extended constants.
+
 Mon Feb  2 01:22:46 1998  Hans-Peter Nilsson  <hp@axis.se>

 	* expr.c (emit_push_insn): Add code to use movstrti if present.

--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -7075,15 +7075,17 @@ get_condition (jump, earliest)
 	    code = LT,	op1 = GEN_INT (const_val + 1);
 	  break;

+	/* When cross-compiling, const_val might be sign-extended from
+	   BITS_PER_WORD to HOST_BITS_PER_WIDE_INT */
 	case GE:
-	  if (const_val
+	  if ((const_val & max_val)
 	      != (((HOST_WIDE_INT) 1
 		   << (GET_MODE_BITSIZE (GET_MODE (op0)) - 1))))
 	    code = GT, op1 = GEN_INT (const_val - 1);
 	  break;

 	case LEU:
-	  if (uconst_val != max_val)
+	  if (uconst_val < max_val)
 	    code = LTU, op1 = GEN_INT (uconst_val + 1);
 	  break;