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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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3
glslang/MachineIndependent/ParseHelper.cpp
View file

@ -1243,6 +1243,8 @@ TIntermAggregate* TParseContext::handleFunctionDefinition(const TSourceLoc& loc,
error(loc, "function cannot take any parameter(s)", function.getName().c_str(), "");
if (function.getType().getBasicType() != EbtVoid)
error(loc, "", function.getType().getBasicTypeString().c_str(), "entry point cannot return a value");
if (function.getLinkType() != ELinkNone)
error(loc, "main function cannot be exported", "", "");
}
//
@ -1279,6 +1281,7 @@ TIntermAggregate* TParseContext::handleFunctionDefinition(const TSourceLoc& loc,
} else
paramNodes = intermediate.growAggregate(paramNodes, intermediate.addSymbol(*param.type, loc), loc);
}
paramNodes->setLinkType(function.getLinkType());
intermediate.setAggregateOperator(paramNodes, EOpParameters, TType(EbtVoid), loc);
loopNestingLevel = 0;
statementNestingLevel = 0;

1
glslang/MachineIndependent/ParseHelper.h
View file

@ -196,6 +196,7 @@ public:
struct TPragma contextPragma;
int beginInvocationInterlockCount;
int endInvocationInterlockCount;
bool compileOnly = false;
protected:
TParseContextBase(TParseContextBase&);

11
glslang/MachineIndependent/ShaderLang.cpp
View file

@ -796,7 +796,8 @@ bool ProcessDeferred(
bool requireNonempty,
TShader::Includer& includer,
const std::string sourceEntryPointName = "",
const TEnvironment* environment = nullptr) // optional way of fully setting all versions, overriding the above
const TEnvironment* environment = nullptr, // optional way of fully setting all versions, overriding the above
bool compileOnly = false)
{
// This must be undone (.pop()) by the caller, after it finishes consuming the created tree.
GetThreadPoolAllocator().push();
@ -942,6 +943,7 @@ bool ProcessDeferred(
std::unique_ptr<TParseContextBase> parseContext(CreateParseContext(*symbolTable, intermediate, version, profile, source,
stage, compiler->infoSink,
spvVersion, forwardCompatible, messages, false, sourceEntryPointName));
parseContext->compileOnly = compileOnly;
TPpContext ppContext(*parseContext, names[numPre] ? names[numPre] : "", includer);
// only GLSL (bison triggered, really) needs an externally set scan context
@ -1279,14 +1281,15 @@ bool CompileDeferred(
TIntermediate& intermediate,// returned tree, etc.
TShader::Includer& includer,
const std::string sourceEntryPointName = "",
TEnvironment* environment = nullptr)
TEnvironment* environment = nullptr,
bool compileOnly = false)
{
DoFullParse parser;
return ProcessDeferred(compiler, shaderStrings, numStrings, inputLengths, stringNames,
preamble, optLevel, resources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile, overrideVersion,
forwardCompatible, messages, intermediate, parser,
true, includer, sourceEntryPointName, environment);
true, includer, sourceEntryPointName, environment, compileOnly);
}
} // end anonymous namespace for local functions
@ -1867,7 +1870,7 @@ bool TShader::parse(const TBuiltInResource* builtInResources, int defaultVersion
preamble, EShOptNone, builtInResources, defaultVersion,
defaultProfile, forceDefaultVersionAndProfile, overrideVersion,
forwardCompatible, messages, *intermediate, includer, sourceEntryPointName,
&environment);
&environment, compileOnly);
}
// Fill in a string with the result of preprocessing ShaderStrings

7
glslang/MachineIndependent/SymbolTable.h
View file

@ -246,7 +246,8 @@ public:
TSymbol(name),
mangledName(*name + '('),
op(tOp),
defined(false), prototyped(false), implicitThis(false), illegalImplicitThis(false), defaultParamCount(0)
defined(false), prototyped(false), implicitThis(false), illegalImplicitThis(false), defaultParamCount(0),
linkType(ELinkNone)
{
returnType.shallowCopy(retType);
declaredBuiltIn = retType.getQualifier().builtIn;
@ -326,6 +327,9 @@ public:
virtual void dump(TInfoSink& infoSink, bool complete = false) const override;
void setExport() { linkType = ELinkExport; }
TLinkType getLinkType() const { return linkType; }
protected:
explicit TFunction(const TFunction&);
TFunction& operator=(const TFunction&);
@ -347,6 +351,7 @@ protected:
int defaultParamCount;
TSpirvInstruction spirvInst; // SPIR-V instruction qualifiers
TLinkType linkType;
};
//

3
glslang/MachineIndependent/attribute.cpp
View file

@ -123,6 +123,8 @@ TAttributeType TParseContext::attributeFromName(const TString& name) const
return EatPartialCount;
else if (name == "subgroup_uniform_control_flow")
return EatSubgroupUniformControlFlow;
else if (name == "export")
return EatExport;
else
return EatNone;
}
@ -355,6 +357,7 @@ void TParseContext::handleFunctionAttributes(const TSourceLoc& loc, const TAttri
switch (it->name) {
case EatSubgroupUniformControlFlow:
requireExtensions(loc, 1, &E_GL_EXT_subgroup_uniform_control_flow, "attribute");
intermediate.setSubgroupUniformControlFlow();
break;
default:

1
glslang/MachineIndependent/attribute.h
View file

@ -120,6 +120,7 @@ namespace glslang {
EatNonWritable,
EatNonReadable,
EatSubgroupUniformControlFlow,
EatExport,
};
class TIntermAggregate;

8
glslang/MachineIndependent/glslang.y
View file

@ -941,24 +941,25 @@ identifier_list
function_prototype
: function_declarator RIGHT_PAREN {
$$.function = $1;
if (parseContext.compileOnly) $$.function->setExport();
$$.loc = $2.loc;
}
| function_declarator RIGHT_PAREN attribute {
$$.function = $1;
if (parseContext.compileOnly) $$.function->setExport();
$$.loc = $2.loc;
parseContext.requireExtensions($2.loc, 1, &E_GL_EXT_subgroup_uniform_control_flow, "attribute");
parseContext.handleFunctionAttributes($2.loc, *$3);
}
| attribute function_declarator RIGHT_PAREN {
$$.function = $2;
if (parseContext.compileOnly) $$.function->setExport();
$$.loc = $3.loc;
parseContext.requireExtensions($3.loc, 1, &E_GL_EXT_subgroup_uniform_control_flow, "attribute");
parseContext.handleFunctionAttributes($3.loc, *$1);
}
| attribute function_declarator RIGHT_PAREN attribute {
$$.function = $2;
if (parseContext.compileOnly) $$.function->setExport();
$$.loc = $3.loc;
parseContext.requireExtensions($3.loc, 1, &E_GL_EXT_subgroup_uniform_control_flow, "attribute");
parseContext.handleFunctionAttributes($3.loc, *$1);
parseContext.handleFunctionAttributes($3.loc, *$4);
}
@ -4088,6 +4089,7 @@ function_definition
parseContext.error($1.loc, "function does not return a value:", "", $1.function->getName().c_str());
parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]);
$$ = parseContext.intermediate.growAggregate($1.intermNode, $3);
$$->getAsAggregate()->setLinkType($1.function->getLinkType());
parseContext.intermediate.setAggregateOperator($$, EOpFunction, $1.function->getType(), $1.loc);
$$->getAsAggregate()->setName($1.function->getMangledName().c_str());

2604
glslang/MachineIndependent/glslang_tab.cpp
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File diff suppressed because it is too large Load diff

2
glslang/MachineIndependent/glslang_tab.cpp.h
View file

@ -524,7 +524,7 @@ extern int yydebug;
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
union YYSTYPE
{
#line 97 "MachineIndependent/glslang.y"
#line 72 "MachineIndependent/glslang.y"
struct {
glslang::TSourceLoc loc;