High,
since "trunk revision 206525" I'm unable to bootstrap
gcc with '-O3' as optimisation. No problem until
revision 2065250.
>From the diff-output it looks like this entry from
ChangeLog is the only candidate:
-------------------
diff -urN -x.svn gcc-head-206520/LAST_UPDATED gcc-head-206525/LAST_UPDATED
--- gcc-head-206520/LAST_UPDATED 2014-01-19 17:54:07.053340903 +0100
+++ gcc-head-206525/LAST_UPDATED 2014-01-19 18:58:54.049008110 +0100
@@ -1,2 +1,2 @@
-Sun Jan 19 17:54:07 CET 2014
-Sun Jan 19 16:54:07 UTC 2014 (revision 206520)
+Sun Jan 19 18:58:54 CET 2014
+Sun Jan 19 17:58:54 UTC 2014 (revision 206525)
diff -urN -x.svn gcc-head-206520/gcc/ChangeLog gcc-head-206525/gcc/ChangeLog
--- gcc-head-206520/gcc/ChangeLog 2014-01-19 17:54:03.620441749 +0100
+++ gcc-head-206525/gcc/ChangeLog 2014-01-19 18:58:51.113097157 +0100
@@ -1,3 +1,15 @@
+2014-01-10 Richard Biener <rguent...@suse.de>
+
+ PR tree-optimization/59374
+ * tree-vect-slp.c (vect_slp_analyze_bb_1): Move dependence
+ checking after SLP discovery. Mark stmts not participating
+ in any SLP instance properly.
+
+2014-01-10 Kyrylo Tkachov <kyrylo.tkac...@arm.com>
+
+ * config/arm/arm.c (arm_new_rtx_costs): Use destination mode
+ when handling a SET rtx.
+
2014-01-10 Kyrylo Tkachov <kyrylo.tkac...@arm.com>
* config/arm/arm-cores.def (cortex-a53): Specify FL_CRC32.
-------------------
gcc is built with the following commands:
-----------
CFLAGS="-O3"; export CFLAGS
CXXFLAGS="$CFLAGS"; export CXXFLAGS
CFLAGS="$CFLAGS" CXXFLAGS="$CFLAGS" XCFLAGS="$CFLAGS" TCFLAGS="$CFLAGS" \
../gcc-head-206525/configure --enable-shared --prefix=/usr --enable-multilib=no
--enable-checking=release --enable-werror=no --enable-languages='c,c++' >&
configure.out
make -j6 BOOT_CFLAGS="-O3" >& make.out || exit 1
-----------
and results in the following error:
------------------
# make compare
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/bitmap.o differs
gcc/bt-load.o differs
gcc/emit-rtl.o differs
libiberty/pic/md5.o differs
libiberty/md5.o differs
Makefile:20642: recipe for target 'compare' failed
make: *** [compare] Error 1
------------------
I've verified the behaviour on opensuse 13.1 too to ensure
it's not caused by local tool-chain.
regards
winfried
