blob: 1dcae80dfc4306b420d4a67be82cf57b1594ce68 [file] [log] [blame]
#!/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"
# Find thinlto.bc files in subdirectories
if [[ -z $(find "bazel-bin/hello/hello.lto" -path "*hello/_objs/hello/hello.o.thinlto.bc" -print -quit) ]] \
|| [[ -z $(find "bazel-bin/hello/hello.lto" -path "*hello/_objs/hello_lib/hellolib.o.thinlto.bc" -print -quit) ]]; then
fail "bitcode files were not generated"
fi
}
run_suite "test ThinLTO"