https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64754
Bug ID: 64754
Summary: [5 Regression] bootstrap with
--with-build-config=bootstrap-lto
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
On Linux/x86-32, r220018 gave
# .../gcc/configure --enable-clocale=gnu --with-system-zlib
--with-demangler-in-ld --enable-languages=c,c++ i686-linux
--prefix=/usr/gcc-5.0.0 --with-local-prefix=/usr/local
--enable-gnu-indirect-function --enable-targets=all
--with-build-config=bootstrap-lto --with-fpmath=sse
# make -j8 bootstrap
...
Comparing stages 2 and 3
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
Bootstrap comparison failure!
gcc/ipa-icf.o differs
Makefile:19842: recipe for target 'compare' failed
make[3]: *** [compare] Error 1
make[3]: Leaving directory '/export/build/gnu/gcc-32bit-lto/build-i686-linux'
Makefile:19821: recipe for target 'stage3-bubble' failed
make[2]: *** [stage3-bubble] Error 2
