From: Torbjorn Granlund <tege@gnu.org>
Date: Fri, 1 Jul 1994 11:40:45 +0000 (+0000)
Subject: (expand_divmod): Put OP0 in a register when computing
X-Git-Tag: misc/cutover-egcs-0~6315
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab0b65811bd9a0ed2408e16d756c712818d9a8d8;p=thirdparty%2Fgcc.git

(expand_divmod): Put OP0 in a register when computing
remainder, or when OP1 is constant.

From-SVN: r7628
---

diff --git a/gcc/expmed.c b/gcc/expmed.c
index 5df018834896..50ebb6747144 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -2680,9 +2680,10 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp)
   if (GET_CODE (op1) == MEM && MEM_VOLATILE_P (op1))
     op1 = force_reg (compute_mode, op1);
 
-#if 0
-  op0 = force_reg (mode, op0);
-#endif
+  /* If we need the remainder or if OP1 is constant, we need to
+     put OP0 in a register in case it has any queued subexpressions.  */
+  if (rem_flag || op1_is_constant)
+    op0 = force_reg (compute_mode, op0);
 
   last = get_last_insn ();