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Add --no-link option

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Adds the --no-link option which outputs the compiled shader binaries
without linking them. This is a first step towards allowing users to
create SPIR-v binary, non-executable libraries.

When using the --no-link option, all functions are decorated with the
Export linkage attribute.
This commit is contained in:
Nathaniel Cesario 2023-08-17 13:49:18 -06:00 • committed by arcady-lunarg
parent a4aceb57de
commit 4c57db1595
24 changed files with 1671 additions and 1454 deletions
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19
gtests/Spv.FromFile.cpp
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@ -65,6 +65,7 @@ std::string FileNameAsCustomTestSuffixIoMap(
}
using CompileVulkanToSpirvTest = GlslangTest<::testing::TestWithParam<std::string>>;
using CompileVulkanToSpirvTestNoLink = GlslangTest<::testing::TestWithParam<std::string>>;
using CompileVulkanToSpirvDeadCodeElimTest = GlslangTest<::testing::TestWithParam<std::string>>;
using CompileVulkanToDebugSpirvTest = GlslangTest<::testing::TestWithParam<std::string>>;
using CompileVulkan1_1ToSpirvTest = GlslangTest<::testing::TestWithParam<std::string>>;
@ -92,6 +93,16 @@ TEST_P(CompileVulkanToSpirvTest, FromFile)
Target::Spv);
}
// Compiling GLSL to SPIR-V under Vulkan semantics without linking. Expected to successfully generate SPIR-V.
TEST_P(CompileVulkanToSpirvTestNoLink, FromFile)
{
options().compileOnly = true;
// NOTE: Vulkan 1.3 is currently required to use the linkage capability
// TODO(ncesario) make sure this is actually necessary
loadFileCompileAndCheck(GlobalTestSettings.testRoot, GetParam(), Source::GLSL, Semantics::Vulkan,
glslang::EShTargetVulkan_1_3, glslang::EShTargetSpv_1_0, Target::Spv);
}
TEST_P(CompileVulkanToSpirvDeadCodeElimTest, FromFile)
{
loadFileCompileAndCheck(GlobalTestSettings.testRoot, GetParam(),
@ -534,6 +545,14 @@ INSTANTIATE_TEST_SUITE_P(
FileNameAsCustomTestSuffix
);
INSTANTIATE_TEST_SUITE_P(
Glsl, CompileVulkanToSpirvTestNoLink,
::testing::ValuesIn(std::vector<std::string>({
"spv.exportFunctions.comp",
})),
FileNameAsCustomTestSuffix
);
// Cases with deliberately unreachable code.
// By default the compiler will aggressively eliminate
// unreachable merges and continues.