We need a minimum branch cost of 2 to make the expected optimization happen.
Tested for avr with --target_board=atmega128-sim and native on
i686-pc-linuc-gnu.
Ok to apply?
2013-08-16 Joern Rennecke <joern.renne...@embecosm.com>
* gcc.dg/tree-ssa/vrp87.c [avr-*-*] (dg-additional-options): New.
Index: gcc.dg/tree-ssa/vrp87.c
===================================================================
--- gcc.dg/tree-ssa/vrp87.c (revision 201835)
+++ gcc.dg/tree-ssa/vrp87.c (working copy)
@@ -1,6 +1,7 @@
/* { dg-do compile { target { ! "m68k*-*-* mmix*-*-* mep*-*-* bfin*-*-*
v850*-*-* picochip*-*-* moxie*-*-* cris*-*-* m32c*-*-* fr30*-*-* mcore*-*-*
powerpc*-*-* xtensa*-*-*"} } } */
/* { dg-options "-O2 -fdump-tree-vrp2-details -fdump-tree-cddce2-details" } */
+/* { dg-additional-options "-mbranch-cost=2" { target avr-*-* } } */
struct bitmap_head_def;
typedef struct bitmap_head_def *bitmap;
