From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Tue, 27 Feb 2007 13:13:26 +0000 (+0000)
Subject: bfin.md (doloop_end): FAIL if counter reg isn't SImode.
X-Git-Tag: releases/gcc-4.3.0~6578
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9b02a95e8022dca224a076d3ab818ee495f70ecb;p=thirdparty%2Fgcc.git

bfin.md (doloop_end): FAIL if counter reg isn't SImode.

	* config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.

From-SVN: r122371
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 838fa3fe0ec7..2de3d70b2e84 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2007-02-27  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* config/bfin/bfin.md (doloop_end): FAIL if counter reg isn't SImode.
+
 2007-02-27  Andreas Schwab  <schwab@suse.de>
 
 	* Makefile.in (TEXI_GCCINSTALL_FILES): Add gcc-common.texi.
diff --git a/gcc/config/bfin/bfin.md b/gcc/config/bfin/bfin.md
index 63a651a5035b..6e609e8b37ff 100644
--- a/gcc/config/bfin/bfin.md
+++ b/gcc/config/bfin/bfin.md
@@ -1640,10 +1640,12 @@
 	      (clobber (match_scratch:SI 5 ""))])]
   ""
 {
+  /* The loop optimizer doesn't check the predicates... */
+  if (GET_MODE (operands[0]) != SImode)
+    FAIL;
   /* Due to limitations in the hardware (an initial loop count of 0
      does not loop 2^32 times) we must avoid to generate a hardware
      loops when we cannot rule out this case.  */
-
   if (!flag_unsafe_loop_optimizations
       && (unsigned HOST_WIDE_INT) INTVAL (operands[2]) >= 0xFFFFFFFF)
     FAIL;