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// slang-pass-through.cpp
#include "slang-pass-through.h"
#include "../core/slang-type-text-util.h"
#include "compiler-core/slang-slice-allocator.h"
#include "slang-compiler.h"
namespace Slang
{
void printDiagnosticArg(StringBuilder& sb, PassThroughMode val)
{
sb << TypeTextUtil::getPassThroughName(SlangPassThrough(val));
}
SourceLanguage getDefaultSourceLanguageForDownstreamCompiler(PassThroughMode compiler)
{
switch (compiler)
{
case PassThroughMode::None:
{
return SourceLanguage::Unknown;
}
case PassThroughMode::Fxc:
case PassThroughMode::Dxc:
{
return SourceLanguage::HLSL;
}
case PassThroughMode::Glslang:
{
return SourceLanguage::GLSL;
}
case PassThroughMode::LLVM:
case PassThroughMode::Clang:
case PassThroughMode::VisualStudio:
case PassThroughMode::Gcc:
case PassThroughMode::GenericCCpp:
{
// These could ingest C, but we only have this function to work out a
// 'default' language to ingest.
return SourceLanguage::CPP;
}
case PassThroughMode::NVRTC:
{
return SourceLanguage::CUDA;
}
case PassThroughMode::Tint:
{
return SourceLanguage::WGSL;
}
case PassThroughMode::SpirvDis:
{
return SourceLanguage::SPIRV;
}
case PassThroughMode::MetalC:
{
return SourceLanguage::Metal;
}
default:
break;
}
SLANG_ASSERT(!"Unknown compiler");
return SourceLanguage::Unknown;
}
PassThroughMode getDownstreamCompilerRequiredForTarget(CodeGenTarget target)
{
switch (target)
{
// Don't *require* a downstream compiler for source output
case CodeGenTarget::GLSL:
case CodeGenTarget::HLSL:
case CodeGenTarget::CUDASource:
case CodeGenTarget::CPPSource:
case CodeGenTarget::HostCPPSource:
case CodeGenTarget::PyTorchCppBinding:
case CodeGenTarget::CSource:
case CodeGenTarget::Metal:
case CodeGenTarget::WGSL:
{
return PassThroughMode::None;
}
case CodeGenTarget::None:
{
return PassThroughMode::None;
}
case CodeGenTarget::WGSLSPIRVAssembly:
case CodeGenTarget::SPIRVAssembly:
case CodeGenTarget::SPIRV:
{
return PassThroughMode::SpirvDis;
}
case CodeGenTarget::DXBytecode:
case CodeGenTarget::DXBytecodeAssembly:
{
return PassThroughMode::Fxc;
}
case CodeGenTarget::DXIL:
case CodeGenTarget::DXILAssembly:
{
return PassThroughMode::Dxc;
}
case CodeGenTarget::MetalLib:
case CodeGenTarget::MetalLibAssembly:
{
return PassThroughMode::MetalC;
}
case CodeGenTarget::ShaderHostCallable:
case CodeGenTarget::ShaderSharedLibrary:
case CodeGenTarget::HostExecutable:
case CodeGenTarget::HostHostCallable:
case CodeGenTarget::HostSharedLibrary:
{
// We need some C/C++ compiler
return PassThroughMode::GenericCCpp;
}
case CodeGenTarget::PTX:
{
return PassThroughMode::NVRTC;
}
case CodeGenTarget::WGSLSPIRV:
{
return PassThroughMode::Tint;
}
default:
break;
}
SLANG_ASSERT(!"Unhandled target");
return PassThroughMode::None;
}
void reportExternalCompileError(
const char* compilerName,
Severity severity,
SlangResult res,
const UnownedStringSlice& diagnostic,
DiagnosticSink* sink)
{
StringBuilder builder;
if (compilerName)
{
builder << compilerName << ": ";
}
if (SLANG_FAILED(res) && res != SLANG_FAIL)
{
{
char tmp[17];
sprintf_s(tmp, SLANG_COUNT_OF(tmp), "0x%08x", uint32_t(res));
builder << "Result(" << tmp << ") ";
}
PlatformUtil::appendResult(res, builder);
}
if (diagnostic.getLength() > 0)
{
builder.append(diagnostic);
if (!diagnostic.endsWith("\n"))
{
builder.append("\n");
}
}
sink->diagnoseRaw(severity, builder.getUnownedSlice());
}
void reportExternalCompileError(
const char* compilerName,
SlangResult res,
const UnownedStringSlice& diagnostic,
DiagnosticSink* sink)
{
// TODO(tfoley): need a better policy for how we translate diagnostics
// back into the Slang world (although we should always try to generate
// HLSL that doesn't produce any diagnostics...)
reportExternalCompileError(
compilerName,
SLANG_FAILED(res) ? Severity::Error : Severity::Warning,
res,
diagnostic,
sink);
}
static Severity _getDiagnosticSeverity(ArtifactDiagnostic::Severity severity)
{
switch (severity)
{
case ArtifactDiagnostic::Severity::Warning:
return Severity::Warning;
case ArtifactDiagnostic::Severity::Info:
return Severity::Note;
default:
return Severity::Error;
}
}
SlangResult passthroughDownstreamDiagnostics(
DiagnosticSink* sink,
IDownstreamCompiler* compiler,
IArtifact* artifact)
{
auto diagnostics = findAssociatedRepresentation<IArtifactDiagnostics>(artifact);
if (!diagnostics)
return SLANG_OK;
if (diagnostics->getCount())
{
StringBuilder compilerText;
DownstreamCompilerUtil::appendAsText(compiler->getDesc(), compilerText);
StringBuilder builder;
auto const diagnosticCount = diagnostics->getCount();
for (Index i = 0; i < diagnosticCount; ++i)
{
const auto& diagnostic = *diagnostics->getAt(i);
builder.clear();
const Severity severity = _getDiagnosticSeverity(diagnostic.severity);
if (diagnostic.filePath.count == 0 && diagnostic.location.line == 0 &&
severity == Severity::Note)
{
// If theres no filePath line number and it's info, output severity and text alone
builder << getSeverityName(severity) << " : ";
}
else
{
if (diagnostic.filePath.count)
{
builder << asStringSlice(diagnostic.filePath);
}
if (diagnostic.location.line)
{
builder << "(" << diagnostic.location.line << ")";
}
builder << ": ";
if (diagnostic.stage == ArtifactDiagnostic::Stage::Link)
{
builder << "link ";
}
builder << getSeverityName(severity);
builder << " " << asStringSlice(diagnostic.code) << ": ";
}
builder << asStringSlice(diagnostic.text);
reportExternalCompileError(
compilerText.getBuffer(),
severity,
SLANG_OK,
builder.getUnownedSlice(),
sink);
}
}
// If any errors are emitted, then we are done
if (diagnostics->hasOfAtLeastSeverity(ArtifactDiagnostic::Severity::Error))
{
return SLANG_FAIL;
}
return SLANG_OK;
}
} // namespace Slang
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