mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 19:52:54 +01:00
2537f35175
This was considered a good practice but it was not documented. Now it is. Differential Revision: http://reviews.llvm.org/D14733 llvm-svn: 253281
605 lines
21 KiB
ReStructuredText
605 lines
21 KiB
ReStructuredText
=================================
|
|
LLVM Testing Infrastructure Guide
|
|
=================================
|
|
|
|
.. contents::
|
|
:local:
|
|
|
|
.. toctree::
|
|
:hidden:
|
|
|
|
TestSuiteMakefileGuide
|
|
|
|
Overview
|
|
========
|
|
|
|
This document is the reference manual for the LLVM testing
|
|
infrastructure. It documents the structure of the LLVM testing
|
|
infrastructure, the tools needed to use it, and how to add and run
|
|
tests.
|
|
|
|
Requirements
|
|
============
|
|
|
|
In order to use the LLVM testing infrastructure, you will need all of the
|
|
software required to build LLVM, as well as `Python <http://python.org>`_ 2.7 or
|
|
later.
|
|
|
|
LLVM testing infrastructure organization
|
|
========================================
|
|
|
|
The LLVM testing infrastructure contains two major categories of tests:
|
|
regression tests and whole programs. The regression tests are contained
|
|
inside the LLVM repository itself under ``llvm/test`` and are expected
|
|
to always pass -- they should be run before every commit.
|
|
|
|
The whole programs tests are referred to as the "LLVM test suite" (or
|
|
"test-suite") and are in the ``test-suite`` module in subversion. For
|
|
historical reasons, these tests are also referred to as the "nightly
|
|
tests" in places, which is less ambiguous than "test-suite" and remains
|
|
in use although we run them much more often than nightly.
|
|
|
|
Regression tests
|
|
----------------
|
|
|
|
The regression tests are small pieces of code that test a specific
|
|
feature of LLVM or trigger a specific bug in LLVM. The language they are
|
|
written in depends on the part of LLVM being tested. These tests are driven by
|
|
the :doc:`Lit <CommandGuide/lit>` testing tool (which is part of LLVM), and
|
|
are located in the ``llvm/test`` directory.
|
|
|
|
Typically when a bug is found in LLVM, a regression test containing just
|
|
enough code to reproduce the problem should be written and placed
|
|
somewhere underneath this directory. For example, it can be a small
|
|
piece of LLVM IR distilled from an actual application or benchmark.
|
|
|
|
``test-suite``
|
|
--------------
|
|
|
|
The test suite contains whole programs, which are pieces of code which
|
|
can be compiled and linked into a stand-alone program that can be
|
|
executed. These programs are generally written in high level languages
|
|
such as C or C++.
|
|
|
|
These programs are compiled using a user specified compiler and set of
|
|
flags, and then executed to capture the program output and timing
|
|
information. The output of these programs is compared to a reference
|
|
output to ensure that the program is being compiled correctly.
|
|
|
|
In addition to compiling and executing programs, whole program tests
|
|
serve as a way of benchmarking LLVM performance, both in terms of the
|
|
efficiency of the programs generated as well as the speed with which
|
|
LLVM compiles, optimizes, and generates code.
|
|
|
|
The test-suite is located in the ``test-suite`` Subversion module.
|
|
|
|
Debugging Information tests
|
|
---------------------------
|
|
|
|
The test suite contains tests to check quality of debugging information.
|
|
The test are written in C based languages or in LLVM assembly language.
|
|
|
|
These tests are compiled and run under a debugger. The debugger output
|
|
is checked to validate of debugging information. See README.txt in the
|
|
test suite for more information . This test suite is located in the
|
|
``debuginfo-tests`` Subversion module.
|
|
|
|
Quick start
|
|
===========
|
|
|
|
The tests are located in two separate Subversion modules. The
|
|
regressions tests are in the main "llvm" module under the directory
|
|
``llvm/test`` (so you get these tests for free with the main LLVM tree).
|
|
Use ``make check-all`` to run the regression tests after building LLVM.
|
|
|
|
The more comprehensive test suite that includes whole programs in C and C++
|
|
is in the ``test-suite`` module. See :ref:`test-suite Quickstart
|
|
<test-suite-quickstart>` for more information on running these tests.
|
|
|
|
Regression tests
|
|
----------------
|
|
|
|
To run all of the LLVM regression tests, use the master Makefile in the
|
|
``llvm/test`` directory. LLVM Makefiles require GNU Make (read the :doc:`LLVM
|
|
Makefile Guide <MakefileGuide>` for more details):
|
|
|
|
.. code-block:: bash
|
|
|
|
% make -C llvm/test
|
|
|
|
or:
|
|
|
|
.. code-block:: bash
|
|
|
|
% make check
|
|
|
|
If you have `Clang <http://clang.llvm.org/>`_ checked out and built, you
|
|
can run the LLVM and Clang tests simultaneously using:
|
|
|
|
.. code-block:: bash
|
|
|
|
% make check-all
|
|
|
|
To run the tests with Valgrind (Memcheck by default), use the ``LIT_ARGS`` make
|
|
variable to pass the required options to lit. For example, you can use:
|
|
|
|
.. code-block:: bash
|
|
|
|
% make check LIT_ARGS="-v --vg --vg-leak"
|
|
|
|
to enable testing with valgrind and with leak checking enabled.
|
|
|
|
To run individual tests or subsets of tests, you can use the ``llvm-lit``
|
|
script which is built as part of LLVM. For example, to run the
|
|
``Integer/BitPacked.ll`` test by itself you can run:
|
|
|
|
.. code-block:: bash
|
|
|
|
% llvm-lit ~/llvm/test/Integer/BitPacked.ll
|
|
|
|
or to run all of the ARM CodeGen tests:
|
|
|
|
.. code-block:: bash
|
|
|
|
% llvm-lit ~/llvm/test/CodeGen/ARM
|
|
|
|
For more information on using the :program:`lit` tool, see ``llvm-lit --help``
|
|
or the :doc:`lit man page <CommandGuide/lit>`.
|
|
|
|
Debugging Information tests
|
|
---------------------------
|
|
|
|
To run debugging information tests simply checkout the tests inside
|
|
clang/test directory.
|
|
|
|
.. code-block:: bash
|
|
|
|
% cd clang/test
|
|
% svn co http://llvm.org/svn/llvm-project/debuginfo-tests/trunk debuginfo-tests
|
|
|
|
These tests are already set up to run as part of clang regression tests.
|
|
|
|
Regression test structure
|
|
=========================
|
|
|
|
The LLVM regression tests are driven by :program:`lit` and are located in the
|
|
``llvm/test`` directory.
|
|
|
|
This directory contains a large array of small tests that exercise
|
|
various features of LLVM and to ensure that regressions do not occur.
|
|
The directory is broken into several sub-directories, each focused on a
|
|
particular area of LLVM.
|
|
|
|
Writing new regression tests
|
|
----------------------------
|
|
|
|
The regression test structure is very simple, but does require some
|
|
information to be set. This information is gathered via ``configure``
|
|
and is written to a file, ``test/lit.site.cfg`` in the build directory.
|
|
The ``llvm/test`` Makefile does this work for you.
|
|
|
|
In order for the regression tests to work, each directory of tests must
|
|
have a ``lit.local.cfg`` file. :program:`lit` looks for this file to determine
|
|
how to run the tests. This file is just Python code and thus is very
|
|
flexible, but we've standardized it for the LLVM regression tests. If
|
|
you're adding a directory of tests, just copy ``lit.local.cfg`` from
|
|
another directory to get running. The standard ``lit.local.cfg`` simply
|
|
specifies which files to look in for tests. Any directory that contains
|
|
only directories does not need the ``lit.local.cfg`` file. Read the :doc:`Lit
|
|
documentation <CommandGuide/lit>` for more information.
|
|
|
|
Each test file must contain lines starting with "RUN:" that tell :program:`lit`
|
|
how to run it. If there are no RUN lines, :program:`lit` will issue an error
|
|
while running a test.
|
|
|
|
RUN lines are specified in the comments of the test program using the
|
|
keyword ``RUN`` followed by a colon, and lastly the command (pipeline)
|
|
to execute. Together, these lines form the "script" that :program:`lit`
|
|
executes to run the test case. The syntax of the RUN lines is similar to a
|
|
shell's syntax for pipelines including I/O redirection and variable
|
|
substitution. However, even though these lines may *look* like a shell
|
|
script, they are not. RUN lines are interpreted by :program:`lit`.
|
|
Consequently, the syntax differs from shell in a few ways. You can specify
|
|
as many RUN lines as needed.
|
|
|
|
:program:`lit` performs substitution on each RUN line to replace LLVM tool names
|
|
with the full paths to the executable built for each tool (in
|
|
``$(LLVM_OBJ_ROOT)/$(BuildMode)/bin)``. This ensures that :program:`lit` does
|
|
not invoke any stray LLVM tools in the user's path during testing.
|
|
|
|
Each RUN line is executed on its own, distinct from other lines unless
|
|
its last character is ``\``. This continuation character causes the RUN
|
|
line to be concatenated with the next one. In this way you can build up
|
|
long pipelines of commands without making huge line lengths. The lines
|
|
ending in ``\`` are concatenated until a RUN line that doesn't end in
|
|
``\`` is found. This concatenated set of RUN lines then constitutes one
|
|
execution. :program:`lit` will substitute variables and arrange for the pipeline
|
|
to be executed. If any process in the pipeline fails, the entire line (and
|
|
test case) fails too.
|
|
|
|
Below is an example of legal RUN lines in a ``.ll`` file:
|
|
|
|
.. code-block:: llvm
|
|
|
|
; RUN: llvm-as < %s | llvm-dis > %t1
|
|
; RUN: llvm-dis < %s.bc-13 > %t2
|
|
; RUN: diff %t1 %t2
|
|
|
|
As with a Unix shell, the RUN lines permit pipelines and I/O
|
|
redirection to be used.
|
|
|
|
There are some quoting rules that you must pay attention to when writing
|
|
your RUN lines. In general nothing needs to be quoted. :program:`lit` won't
|
|
strip off any quote characters so they will get passed to the invoked program.
|
|
To avoid this use curly braces to tell :program:`lit` that it should treat
|
|
everything enclosed as one value.
|
|
|
|
In general, you should strive to keep your RUN lines as simple as possible,
|
|
using them only to run tools that generate textual output you can then examine.
|
|
The recommended way to examine output to figure out if the test passes is using
|
|
the :doc:`FileCheck tool <CommandGuide/FileCheck>`. *[The usage of grep in RUN
|
|
lines is deprecated - please do not send or commit patches that use it.]*
|
|
|
|
Put related tests into a single file rather than having a separate file per
|
|
test. Check if there are files already covering your feature and consider
|
|
adding your code there instead of creating a new file.
|
|
|
|
Extra files
|
|
-----------
|
|
|
|
If your test requires extra files besides the file containing the ``RUN:``
|
|
lines, the idiomatic place to put them is in a subdirectory ``Inputs``.
|
|
You can then refer to the extra files as ``%S/Inputs/foo.bar``.
|
|
|
|
For example, consider ``test/Linker/ident.ll``. The directory structure is
|
|
as follows::
|
|
|
|
test/
|
|
Linker/
|
|
ident.ll
|
|
Inputs/
|
|
ident.a.ll
|
|
ident.b.ll
|
|
|
|
For convenience, these are the contents:
|
|
|
|
.. code-block:: llvm
|
|
|
|
;;;;; ident.ll:
|
|
|
|
; RUN: llvm-link %S/Inputs/ident.a.ll %S/Inputs/ident.b.ll -S | FileCheck %s
|
|
|
|
; Verify that multiple input llvm.ident metadata are linked together.
|
|
|
|
; CHECK-DAG: !llvm.ident = !{!0, !1, !2}
|
|
; CHECK-DAG: "Compiler V1"
|
|
; CHECK-DAG: "Compiler V2"
|
|
; CHECK-DAG: "Compiler V3"
|
|
|
|
;;;;; Inputs/ident.a.ll:
|
|
|
|
!llvm.ident = !{!0, !1}
|
|
!0 = metadata !{metadata !"Compiler V1"}
|
|
!1 = metadata !{metadata !"Compiler V2"}
|
|
|
|
;;;;; Inputs/ident.b.ll:
|
|
|
|
!llvm.ident = !{!0}
|
|
!0 = metadata !{metadata !"Compiler V3"}
|
|
|
|
For symmetry reasons, ``ident.ll`` is just a dummy file that doesn't
|
|
actually participate in the test besides holding the ``RUN:`` lines.
|
|
|
|
.. note::
|
|
|
|
Some existing tests use ``RUN: true`` in extra files instead of just
|
|
putting the extra files in an ``Inputs/`` directory. This pattern is
|
|
deprecated.
|
|
|
|
Fragile tests
|
|
-------------
|
|
|
|
It is easy to write a fragile test that would fail spuriously if the tool being
|
|
tested outputs a full path to the input file. For example, :program:`opt` by
|
|
default outputs a ``ModuleID``:
|
|
|
|
.. code-block:: console
|
|
|
|
$ cat example.ll
|
|
define i32 @main() nounwind {
|
|
ret i32 0
|
|
}
|
|
|
|
$ opt -S /path/to/example.ll
|
|
; ModuleID = '/path/to/example.ll'
|
|
|
|
define i32 @main() nounwind {
|
|
ret i32 0
|
|
}
|
|
|
|
``ModuleID`` can unexpetedly match against ``CHECK`` lines. For example:
|
|
|
|
.. code-block:: llvm
|
|
|
|
; RUN: opt -S %s | FileCheck
|
|
|
|
define i32 @main() nounwind {
|
|
; CHECK-NOT: load
|
|
ret i32 0
|
|
}
|
|
|
|
This test will fail if placed into a ``download`` directory.
|
|
|
|
To make your tests robust, always use ``opt ... < %s`` in the RUN line.
|
|
:program:`opt` does not output a ``ModuleID`` when input comes from stdin.
|
|
|
|
Platform-Specific Tests
|
|
-----------------------
|
|
|
|
Whenever adding tests that require the knowledge of a specific platform,
|
|
either related to code generated, specific output or back-end features,
|
|
you must make sure to isolate the features, so that buildbots that
|
|
run on different architectures (and don't even compile all back-ends),
|
|
don't fail.
|
|
|
|
The first problem is to check for target-specific output, for example sizes
|
|
of structures, paths and architecture names, for example:
|
|
|
|
* Tests containing Windows paths will fail on Linux and vice-versa.
|
|
* Tests that check for ``x86_64`` somewhere in the text will fail anywhere else.
|
|
* Tests where the debug information calculates the size of types and structures.
|
|
|
|
Also, if the test rely on any behaviour that is coded in any back-end, it must
|
|
go in its own directory. So, for instance, code generator tests for ARM go
|
|
into ``test/CodeGen/ARM`` and so on. Those directories contain a special
|
|
``lit`` configuration file that ensure all tests in that directory will
|
|
only run if a specific back-end is compiled and available.
|
|
|
|
For instance, on ``test/CodeGen/ARM``, the ``lit.local.cfg`` is:
|
|
|
|
.. code-block:: python
|
|
|
|
config.suffixes = ['.ll', '.c', '.cpp', '.test']
|
|
if not 'ARM' in config.root.targets:
|
|
config.unsupported = True
|
|
|
|
Other platform-specific tests are those that depend on a specific feature
|
|
of a specific sub-architecture, for example only to Intel chips that support ``AVX2``.
|
|
|
|
For instance, ``test/CodeGen/X86/psubus.ll`` tests three sub-architecture
|
|
variants:
|
|
|
|
.. code-block:: llvm
|
|
|
|
; RUN: llc -mcpu=core2 < %s | FileCheck %s -check-prefix=SSE2
|
|
; RUN: llc -mcpu=corei7-avx < %s | FileCheck %s -check-prefix=AVX1
|
|
; RUN: llc -mcpu=core-avx2 < %s | FileCheck %s -check-prefix=AVX2
|
|
|
|
And the checks are different:
|
|
|
|
.. code-block:: llvm
|
|
|
|
; SSE2: @test1
|
|
; SSE2: psubusw LCPI0_0(%rip), %xmm0
|
|
; AVX1: @test1
|
|
; AVX1: vpsubusw LCPI0_0(%rip), %xmm0, %xmm0
|
|
; AVX2: @test1
|
|
; AVX2: vpsubusw LCPI0_0(%rip), %xmm0, %xmm0
|
|
|
|
So, if you're testing for a behaviour that you know is platform-specific or
|
|
depends on special features of sub-architectures, you must add the specific
|
|
triple, test with the specific FileCheck and put it into the specific
|
|
directory that will filter out all other architectures.
|
|
|
|
|
|
Substitutions
|
|
-------------
|
|
|
|
Besides replacing LLVM tool names the following substitutions are performed in
|
|
RUN lines:
|
|
|
|
``%%``
|
|
Replaced by a single ``%``. This allows escaping other substitutions.
|
|
|
|
``%s``
|
|
File path to the test case's source. This is suitable for passing on the
|
|
command line as the input to an LLVM tool.
|
|
|
|
Example: ``/home/user/llvm/test/MC/ELF/foo_test.s``
|
|
|
|
``%S``
|
|
Directory path to the test case's source.
|
|
|
|
Example: ``/home/user/llvm/test/MC/ELF``
|
|
|
|
``%t``
|
|
File path to a temporary file name that could be used for this test case.
|
|
The file name won't conflict with other test cases. You can append to it
|
|
if you need multiple temporaries. This is useful as the destination of
|
|
some redirected output.
|
|
|
|
Example: ``/home/user/llvm.build/test/MC/ELF/Output/foo_test.s.tmp``
|
|
|
|
``%T``
|
|
Directory of ``%t``.
|
|
|
|
Example: ``/home/user/llvm.build/test/MC/ELF/Output``
|
|
|
|
``%{pathsep}``
|
|
|
|
Expands to the path separator, i.e. ``:`` (or ``;`` on Windows).
|
|
|
|
|
|
**LLVM-specific substitutions:**
|
|
|
|
``%shlibext``
|
|
The suffix for the host platforms shared library files. This includes the
|
|
period as the first character.
|
|
|
|
Example: ``.so`` (Linux), ``.dylib`` (OS X), ``.dll`` (Windows)
|
|
|
|
``%exeext``
|
|
The suffix for the host platforms executable files. This includes the
|
|
period as the first character.
|
|
|
|
Example: ``.exe`` (Windows), empty on Linux.
|
|
|
|
``%(line)``, ``%(line+<number>)``, ``%(line-<number>)``
|
|
The number of the line where this substitution is used, with an optional
|
|
integer offset. This can be used in tests with multiple RUN lines, which
|
|
reference test file's line numbers.
|
|
|
|
|
|
**Clang-specific substitutions:**
|
|
|
|
``%clang``
|
|
Invokes the Clang driver.
|
|
|
|
``%clang_cpp``
|
|
Invokes the Clang driver for C++.
|
|
|
|
``%clang_cl``
|
|
Invokes the CL-compatible Clang driver.
|
|
|
|
``%clangxx``
|
|
Invokes the G++-compatible Clang driver.
|
|
|
|
``%clang_cc1``
|
|
Invokes the Clang frontend.
|
|
|
|
``%itanium_abi_triple``, ``%ms_abi_triple``
|
|
These substitutions can be used to get the current target triple adjusted to
|
|
the desired ABI. For example, if the test suite is running with the
|
|
``i686-pc-win32`` target, ``%itanium_abi_triple`` will expand to
|
|
``i686-pc-mingw32``. This allows a test to run with a specific ABI without
|
|
constraining it to a specific triple.
|
|
|
|
To add more substituations, look at ``test/lit.cfg`` or ``lit.local.cfg``.
|
|
|
|
|
|
Options
|
|
-------
|
|
|
|
The llvm lit configuration allows to customize some things with user options:
|
|
|
|
``llc``, ``opt``, ...
|
|
Substitute the respective llvm tool name with a custom command line. This
|
|
allows to specify custom paths and default arguments for these tools.
|
|
Example:
|
|
|
|
% llvm-lit "-Dllc=llc -verify-machineinstrs"
|
|
|
|
``run_long_tests``
|
|
Enable the execution of long running tests.
|
|
|
|
``llvm_site_config``
|
|
Load the specified lit configuration instead of the default one.
|
|
|
|
|
|
Other Features
|
|
--------------
|
|
|
|
To make RUN line writing easier, there are several helper programs. These
|
|
helpers are in the PATH when running tests, so you can just call them using
|
|
their name. For example:
|
|
|
|
``not``
|
|
This program runs its arguments and then inverts the result code from it.
|
|
Zero result codes become 1. Non-zero result codes become 0.
|
|
|
|
Sometimes it is necessary to mark a test case as "expected fail" or
|
|
XFAIL. You can easily mark a test as XFAIL just by including ``XFAIL:``
|
|
on a line near the top of the file. This signals that the test case
|
|
should succeed if the test fails. Such test cases are counted separately
|
|
by the testing tool. To specify an expected fail, use the XFAIL keyword
|
|
in the comments of the test program followed by a colon and one or more
|
|
failure patterns. Each failure pattern can be either ``*`` (to specify
|
|
fail everywhere), or a part of a target triple (indicating the test
|
|
should fail on that platform), or the name of a configurable feature
|
|
(for example, ``loadable_module``). If there is a match, the test is
|
|
expected to fail. If not, the test is expected to succeed. To XFAIL
|
|
everywhere just specify ``XFAIL: *``. Here is an example of an ``XFAIL``
|
|
line:
|
|
|
|
.. code-block:: llvm
|
|
|
|
; XFAIL: darwin,sun
|
|
|
|
To make the output more useful, :program:`lit` will scan
|
|
the lines of the test case for ones that contain a pattern that matches
|
|
``PR[0-9]+``. This is the syntax for specifying a PR (Problem Report) number
|
|
that is related to the test case. The number after "PR" specifies the
|
|
LLVM bugzilla number. When a PR number is specified, it will be used in
|
|
the pass/fail reporting. This is useful to quickly get some context when
|
|
a test fails.
|
|
|
|
Finally, any line that contains "END." will cause the special
|
|
interpretation of lines to terminate. This is generally done right after
|
|
the last RUN: line. This has two side effects:
|
|
|
|
(a) it prevents special interpretation of lines that are part of the test
|
|
program, not the instructions to the test case, and
|
|
|
|
(b) it speeds things up for really big test cases by avoiding
|
|
interpretation of the remainder of the file.
|
|
|
|
``test-suite`` Overview
|
|
=======================
|
|
|
|
The ``test-suite`` module contains a number of programs that can be
|
|
compiled and executed. The ``test-suite`` includes reference outputs for
|
|
all of the programs, so that the output of the executed program can be
|
|
checked for correctness.
|
|
|
|
``test-suite`` tests are divided into three types of tests: MultiSource,
|
|
SingleSource, and External.
|
|
|
|
- ``test-suite/SingleSource``
|
|
|
|
The SingleSource directory contains test programs that are only a
|
|
single source file in size. These are usually small benchmark
|
|
programs or small programs that calculate a particular value. Several
|
|
such programs are grouped together in each directory.
|
|
|
|
- ``test-suite/MultiSource``
|
|
|
|
The MultiSource directory contains subdirectories which contain
|
|
entire programs with multiple source files. Large benchmarks and
|
|
whole applications go here.
|
|
|
|
- ``test-suite/External``
|
|
|
|
The External directory contains Makefiles for building code that is
|
|
external to (i.e., not distributed with) LLVM. The most prominent
|
|
members of this directory are the SPEC 95 and SPEC 2000 benchmark
|
|
suites. The ``External`` directory does not contain these actual
|
|
tests, but only the Makefiles that know how to properly compile these
|
|
programs from somewhere else. When using ``LNT``, use the
|
|
``--test-externals`` option to include these tests in the results.
|
|
|
|
.. _test-suite-quickstart:
|
|
|
|
``test-suite`` Quickstart
|
|
-------------------------
|
|
|
|
The modern way of running the ``test-suite`` is focused on testing and
|
|
benchmarking complete compilers using the
|
|
`LNT <http://llvm.org/docs/lnt>`_ testing infrastructure.
|
|
|
|
For more information on using LNT to execute the ``test-suite``, please
|
|
see the `LNT Quickstart <http://llvm.org/docs/lnt/quickstart.html>`_
|
|
documentation.
|
|
|
|
``test-suite`` Makefiles
|
|
------------------------
|
|
|
|
Historically, the ``test-suite`` was executed using a complicated setup
|
|
of Makefiles. The LNT based approach above is recommended for most
|
|
users, but there are some testing scenarios which are not supported by
|
|
the LNT approach. In addition, LNT currently uses the Makefile setup
|
|
under the covers and so developers who are interested in how LNT works
|
|
under the hood may want to understand the Makefile based setup.
|
|
|
|
For more information on the ``test-suite`` Makefile setup, please see
|
|
the :doc:`Test Suite Makefile Guide <TestSuiteMakefileGuide>`.
|