| #!/bin/bash |
| # |
| # Copyright 2019 The Bazel Authors. All rights reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| set -eu |
| |
| # Load the test setup defined in the parent directory |
| CURRENT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" |
| source "${CURRENT_DIR}/../integration_test_setup.sh" \ |
| || { echo "integration_test_setup.sh not found!" >&2; exit 1; } |
| |
| function write_hello_world_files { |
| mkdir -p hello || fail "mkdir hello failed" |
| cat >hello/BUILD <<EOF |
| cc_binary( |
| name = 'hello', |
| srcs = ['hello.cc'], |
| deps = [":hello_lib"], |
| ) |
| |
| cc_library( |
| name = "hello_lib", |
| srcs = ["hellolib.cc"], |
| hdrs = ["hello.h"], |
| ) |
| |
| EOF |
| cat >hello/hello.h <<EOF |
| int hello1(void); |
| void hello2(void); |
| EOF |
| |
| cat >hello/hellolib.cc <<EOF |
| #include <iostream> |
| #include "hello.h" |
| using namespace std; |
| |
| int hello1() { |
| return 42; |
| } |
| |
| void hello2() { |
| cout << "Hi" << endl; |
| } |
| EOF |
| |
| cat >hello/hello.cc <<EOF |
| #include <iostream> |
| #include "hello.h" |
| int main() { |
| hello2(); |
| } |
| EOF |
| } |
| |
| function test_bazel_thinlto() { |
| |
| if is_darwin; then |
| echo "This test doesn't run on Darwin. Skipping." |
| return |
| fi |
| |
| local -r clang_tool=$(which clang) |
| if [[ ! -x ${clang_tool:-/usr/bin/clang_tool} ]]; then |
| echo "clang not installed. Skipping test." |
| return |
| fi |
| |
| local major_version=$($clang_tool --version | \ |
| grep -oP 'version.*' | cut -d' ' -f 2 | cut -d '.' -f 1) |
| |
| if [[ $major_version < 6 ]]; then |
| echo "clang version is smaller than 6.0. Skipping test." |
| return |
| fi |
| |
| write_hello_world_files |
| |
| CC=$clang_tool bazel run \ |
| //hello:hello -c opt -s --features=thin_lto &>$TEST_log \ |
| || fail "Build with ThinLTO failed" |
| |
| grep -q "action 'LTO Backend Compile" $TEST_log \ |
| || fail "LTO Actions missing" |
| |
| if [[ ! -e bazel-bin/hello/hello.lto/hello/_objs/hello/hello.o.thinlto.bc ]] \ |
| || [[ ! -e bazel-bin/hello/hello.lto/hello/_objs/hello_lib/hellolib.o.thinlto.bc ]]; then |
| fail "bitcode files were not generated" |
| fi |
| } |
| |
| run_suite "test ThinLTO" |