This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Backport fix to 4.1 branch
- From: Eric Botcazou <ebotcazou at libertysurf dot fr>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 2 Nov 2007 13:26:03 +0100
- Subject: Backport fix to 4.1 branch
This is a regression still present on the 4.1 branch.
Bootstrapped/regtested on i586-suse-linux, applied on the 4.1 branch.
2007-11-02 Eric Botcazou <ebotcazou@libertysurf.fr>
Backport from mainline:
2006-12-11 Zdenek Dvorak <dvorakz@suse.cz>
PR rtl-optimization/30113
* loop-iv.c (implies_p): Require the mode of the operands to be
scalar.
--
Eric Botcazou
Index: loop-iv.c
===================================================================
--- loop-iv.c (revision 128322)
+++ loop-iv.c (working copy)
@@ -1497,7 +1497,7 @@ implies_p (rtx a, rtx b)
mode = VOIDmode;
}
- if (mode != VOIDmode
+ if (SCALAR_INT_MODE_P (mode)
&& rtx_equal_p (op1, opb1)
&& simplify_gen_binary (MINUS, mode, opb0, op0) == const1_rtx)
return true;