Add a scons pnacl finalize step for pnacl_generate_pexe tests.

buildbot/buildbot_pnacl_toolchain_tests.sh

 #!/bin/bash
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Run toolchain torture tests and llvm testsuite tests.
 # For now, run on linux64, build and run unsandboxed newlib tests
 # for all 3 architectures.
 # Note: This script builds the toolchain from scratch but does
 #       not build the translators and hence the translators
@@ skipping 10 matching lines @@
 # older pexes.
 
 # This hopefully needs to be updated rarely, it contains pexe from
 # the sandboxed llc/gold builds
 ARCHIVED_PEXE_TRANSLATOR_REV=10489
 
 # The frontend from this rev will generate pexes for the archived frontend
 # test. The toolchain downloader expects this information in a specially
 # formatted file. We generate that file in this script from this information,
 # to keep all our versions in one place
-ARCHIVED_TOOLCHAIN_REV=11011
+ARCHIVED_TOOLCHAIN_REV=11078
 
 readonly PNACL_BUILD="pnacl/build.sh"
 readonly UP_DOWN_LOAD="buildbot/file_up_down_load.sh"
 readonly TORTURE_TEST="tools/toolchain_tester/torture_test.sh"
 readonly LLVM_TESTSUITE="pnacl/scripts/llvm-test.sh"
 
 # build.sh, llvm test suite and torture tests all use this value
 export PNACL_CONCURRENCY=${PNACL_CONCURRENCY:-4}
 
 # Change the  toolchain build script (PNACL_BUILD) behavior slightly
@@ skipping 175 matching lines @@
   echo "@@@BUILD_STEP archived_frontend [${arch}]\
         rev ${ARCHIVED_TOOLCHAIN_REV} BUILD IRT@@@"
   ${SCONS_COMMON} ${SCONS_PICK_TC} --mode=opt-host,nacl platform=${arch} \
     irt_core || handle-error
 
 
   echo "@@@BUILD_STEP archived_frontend [${arch}]\
         rev ${ARCHIVED_TOOLCHAIN_REV} BUILD@@@"
   local targets="small_tests medium_tests large_tests"
   local flags="--mode=opt-host,nacl platform=${arch} \
-               translate_in_build_step=0 skip_trusted_tests=1"
+               translate_in_build_step=0 skip_trusted_tests=1 \
+               skip_nonstable_bitcode=1"
 
   rm -rf scons-out/nacl-${arch}*
 
   # Get the archived frontend.
   # If the correct cached frontend is in place, the hash will match and the
   # download will be a no-op. Otherwise the downloader will fix it.
   download-old-tc toolchain/archived_tc
 
   # Save the current toolchain.
   mkdir -p toolchain/current_tc
@@ skipping 209 matching lines @@
   done
 }
 
 
 if [ $# = 0 ]; then
   # NOTE: this is used for manual testing only
   tc-test-bot "x86-64 x86-32 arm"
 else
   "$@"
 fi