SPIRV-Tools/test/tools/opt/oconfig.py
Diego Novillo 03000a3a38 Add testing framework for tools.
This forks the testing harness from https://github.com/google/shaderc
to allow testing CLI tools.

New features needed for SPIRV-Tools include:

1- A new PlaceHolder subclass for spirv shaders.  This place holder
   calls spirv-as to convert assembly input into SPIRV bytecode. This is
   required for most tools in SPIRV-Tools.

2- A minimal testing file for testing basic functionality of spirv-opt.

Add tests for all flags in spirv-opt.

1. Adds tests to check that known flags match the names that each pass
   advertises.
2. Adds tests to check that -O, -Os and --legalize-hlsl schedule the
   expected passes.
3. Adds more functionality to Expect classes to support regular
   expression matching on stderr.
4. Add checks for integer arguments to optimization flags.
5. Fixes #1817 by modifying the parsing of integer arguments in
   flags that take them.
6. Fixes -Oconfig file parsing (#1778). It reads every line of the file
   into a string and then parses that string by tokenizing every group of
   characters between whitespaces (using the standard cin reading
   operator).  This mimics shell command-line parsing, but it does not
   support quoting (and I'm not planning to).
2018-08-17 15:03:14 -04:00

59 lines
1.8 KiB
Python

# Copyright (c) 2018 Google LLC
#
# 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.
import placeholder
import expect
import re
from spirv_test_framework import inside_spirv_testsuite
def empty_main_assembly():
return """
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint Vertex %4 "main"
OpName %4 "main"
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%4 = OpFunction %2 None %3
%5 = OpLabel
OpReturn
OpFunctionEnd"""
@inside_spirv_testsuite('SpirvOptConfigFile')
class TestOconfigEmpty(expect.SuccessfulReturn):
"""Tests empty config files are accepted."""
shader = placeholder.FileSPIRVShader(empty_main_assembly(), '.spvasm')
config = placeholder.ConfigFlagsFile('', '.cfg')
spirv_args = [shader, '-o', placeholder.TempFileName('output.spv'), config]
@inside_spirv_testsuite('SpirvOptConfigFile')
class TestOconfigComments(expect.SuccessfulReturn):
"""Tests empty config files are accepted.
https://github.com/KhronosGroup/SPIRV-Tools/issues/1778
"""
shader = placeholder.FileSPIRVShader(empty_main_assembly(), '.spvasm')
config = placeholder.ConfigFlagsFile("""
# This is a comment.
-O
--loop-unroll
""", '.cfg')
spirv_args = [shader, '-o', placeholder.TempFileName('output.spv'), config]