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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
View file

@ -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.

62
gtests/TestFixture.h
View file

@ -248,36 +248,58 @@ public:
}
}
if (options().compileOnly)
shader.setCompileOnly();
bool success = compile(
&shader, code, entryPointName, controls, nullptr, &shaderName);
glslang::TProgram program;
program.addShader(&shader);
success &= program.link(controls);
if (success)
program.mapIO();
spv::SpvBuildLogger logger;
std::vector<uint32_t> spirv_binary;
if (success && (controls & EShMsgSpvRules)) {
spv::SpvBuildLogger logger;
std::vector<uint32_t> spirv_binary;
if (!options().compileOnly) {
program.addShader(&shader);
success &= program.link(controls);
if (success)
program.mapIO();
if (success && (controls & EShMsgSpvRules)) {
options().disableOptimizer = !enableOptimizer;
options().generateDebugInfo = enableDebug;
options().emitNonSemanticShaderDebugInfo = enableNonSemanticShaderDebugInfo;
options().emitNonSemanticShaderDebugSource = enableNonSemanticShaderDebugInfo;
glslang::GlslangToSpv(*program.getIntermediate(stage), spirv_binary, &logger, &options());
} else {
return {{
{shaderName, shader.getInfoLog(), shader.getInfoDebugLog()},
},
program.getInfoLog(),
program.getInfoDebugLog(),
true,
"",
""};
}
} else {
options().disableOptimizer = !enableOptimizer;
options().generateDebugInfo = enableDebug;
options().emitNonSemanticShaderDebugInfo = enableNonSemanticShaderDebugInfo;
options().emitNonSemanticShaderDebugSource = enableNonSemanticShaderDebugInfo;
glslang::GlslangToSpv(*program.getIntermediate(stage),
spirv_binary, &logger, &options());
std::ostringstream disassembly_stream;
spv::Parameterize();
spv::Disassemble(disassembly_stream, spirv_binary);
bool validation_result = !options().validate || logger.getAllMessages().empty();
return {{{shaderName, shader.getInfoLog(), shader.getInfoDebugLog()},},
program.getInfoLog(), program.getInfoDebugLog(),
validation_result, logger.getAllMessages(), disassembly_stream.str()};
} else {
return {{{shaderName, shader.getInfoLog(), shader.getInfoDebugLog()},},
program.getInfoLog(), program.getInfoDebugLog(), true, "", ""};
glslang::GlslangToSpv(*shader.getIntermediate(), spirv_binary, &logger, &options());
}
std::ostringstream disassembly_stream;
spv::Parameterize();
spv::Disassemble(disassembly_stream, spirv_binary);
bool validation_result = !options().validate || logger.getAllMessages().empty();
return {{
{shaderName, shader.getInfoLog(), shader.getInfoDebugLog()},
},
program.getInfoLog(),
program.getInfoDebugLog(),
validation_result,
logger.getAllMessages(),
disassembly_stream.str()};
}
// Compiles and links the given source |code| of the given shader