| # Copyright 2023 The Shaderc 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. |
| |
| import expect |
| from glslc_test_framework import inside_glslc_testsuite |
| from placeholder import FileShader |
| |
| # A GLSL shader with unused bindings. |
| GLSL_SHADER_WITH_UNUSED_BINDINGS = """#version 450 |
| layout(binding=0) buffer InputA { vec4 x[]; } inputA; |
| layout(binding=1) buffer InputB { vec4 x[]; } inputB; |
| layout(binding=2) buffer Output { vec4 x[]; } outputO; |
| |
| void main() {} |
| """ |
| |
| |
| @inside_glslc_testsuite('OptionFPreserveBindings') |
| class TestFPreserveBindingsInputA(expect.ValidAssemblyFileWithSubstr): |
| """Tests that the compiler preserves bindings when optimizations are |
| enabled.""" |
| |
| shader = FileShader(GLSL_SHADER_WITH_UNUSED_BINDINGS, '.comp') |
| glslc_args = ['-S', '-O', shader, '-fpreserve-bindings'] |
| # Check the first buffer. |
| expected_assembly_substr = "Binding 0" |
| |
| |
| @inside_glslc_testsuite('OptionFPreserveBindings') |
| class TestFPreserveBindingsInputB(expect.ValidAssemblyFileWithSubstr): |
| """Tests that the compiler preserves bindings when optimizations are |
| enabled.""" |
| |
| shader = FileShader(GLSL_SHADER_WITH_UNUSED_BINDINGS, '.comp') |
| glslc_args = ['-S', '-O', shader, '-fpreserve-bindings'] |
| # Check the first buffer. |
| expected_assembly_substr = "Binding 1" |
| |
| |
| @inside_glslc_testsuite('OptionFPreserveBindings') |
| class TestFPreserveBindingsOutputO(expect.ValidAssemblyFileWithSubstr): |
| """Tests that the compiler preserves bindings when optimizations are |
| enabled.""" |
| |
| shader = FileShader(GLSL_SHADER_WITH_UNUSED_BINDINGS, '.comp') |
| glslc_args = ['-S', '-O', shader, '-fpreserve-bindings'] |
| # Check the first buffer. |
| expected_assembly_substr = "Binding 2" |
| |
| |
| @inside_glslc_testsuite('OptionFPreserveBindings') |
| class TestFNoPreserveBindings(expect.ValidAssemblyFileWithoutSubstr): |
| """Tests that the compiler removes bindings when -fpreserve-bindings is not |
| set.""" |
| |
| shader = FileShader(GLSL_SHADER_WITH_UNUSED_BINDINGS, '.comp') |
| glslc_args = ['-S', '-O', shader] |
| # Check that all binding decorations are gone. |
| unexpected_assembly_substr = "OpDecorate" |