https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71989
Bug ID: 71989
Summary: aarch64 bootstrap fails for out-of-tree builds
Product: gcc
Version: 6.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: timo.teras at iki dot fi
Target Milestone: ---
Observed with 6.1.0 release, and gcc 6-stable 20160721 snapshot.
In-tree bootstrap build succeeds, but out-of-tree bootstrap build fails with
the following configure for me:
$ "$srcdir"/configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --build=aarch64-alpine-linux-musl
--host=aarch64-alpine-linux-musl --target=aarch64-alpine-linux-musl
--with-pkgversion="Alpine 6.1.1" --enable-checking=release
--disable-fixed-point --disable-libstdcxx-pch --disable-multilib --disable-nls
--disable-werror --disable-symvers --enable-__cxa_atexit --enable-default-pie
--enable-cloog-backend --enable-languages=c,c++ --with-arch=armv8-a
--with-abi=lp64 --disable-libquadmath --disable-libssp --disable-libmpx
--disable-libmudflap --disable-libsanitizer --enable-shared --enable-threads
--enable-tls --with-system-zlib
The error is:
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/simplify-rtx.o differs
gcc/tree-call-cdce.o differs
gcc/tree-vect-slp.o differs
gcc/dfp.o differs
gcc/tsan.o differs
gcc/opts.o differs
gcc/tree-vect-data-refs.o differs
gcc/omp-simd-clone.o differs
gcc/cp/cxx-pretty-print.o differs
gcc/cp/constexpr.o differs
gcc/cp/cp-array-notation.o differs
gcc/cp/typeck.o differs
gcc/cp/cvt.o differs
gcc/cp/logic.o differs
gcc/gimple-low.o differs
gcc/combine-stack-adj.o differs
gcc/insn-dfatab.o differs
gcc/gimple-fold.o differs
gcc/tree-vect-loop.o differs
gcc/jump.o differs
gcc/tree-ssa-scopedtables.o differs
gcc/gimple-pretty-print.o differs
gcc/insn-latencytab.o differs
gcc/insn-output.o differs
gcc/diagnostic-show-locus.o differs
gcc/mcf.o differs
gcc/optabs.o differs
gcc/fixed-value.o differs
gcc/double-int.o differs
gcc/ipa-icf-gimple.o differs
gcc/valtrack.o differs
gcc/cfgbuild.o differs
gcc/tree-streamer-out.o differs
gcc/hsa-regalloc.o differs
gcc/c/c-array-notation.o differs
gcc/shrink-wrap.o differs
gcc/insn-emit.o differs
gcc/c-family/c-omp.o differs
gcc/c-family/c-cilkplus.o differs
gcc/stmt.o differs
