bool PassBuilder::parseCGSCCPassPipeline(CGSCCPassManager &CGPM,
StringRef &PipelineText,
bool VerifyEachPass,
bool DebugLogging) {
for (;;) {
// Parse nested pass managers by recursing.
if (PipelineText.startswith("cgscc(")) {
CGSCCPassManager NestedCGPM(DebugLogging);
// Parse the inner pipeline into the nested manager.
PipelineText = PipelineText.substr(strlen("cgscc("));
if (!parseCGSCCPassPipeline(NestedCGPM, PipelineText, VerifyEachPass,
DebugLogging) ||
PipelineText.empty())
return false;
assert(PipelineText[0] == ')');
PipelineText = PipelineText.substr(1);
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(std::move(NestedCGPM));
} else if (PipelineText.startswith("function(")) {
FunctionPassManager NestedFPM(DebugLogging);
// Parse the inner pipeline inte the nested manager.
PipelineText = PipelineText.substr(strlen("function("));
if (!parseFunctionPassPipeline(NestedFPM, PipelineText, VerifyEachPass,
DebugLogging) ||
PipelineText.empty())
return false;
assert(PipelineText[0] == ')');
PipelineText = PipelineText.substr(1);
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(
createCGSCCToFunctionPassAdaptor(std::move(NestedFPM), DebugLogging));
} else {
// Otherwise try to parse a pass name.
size_t End = PipelineText.find_first_of(",)");
if (!parseCGSCCPassName(CGPM, PipelineText.substr(0, End)))
return false;
// FIXME: No verifier support for CGSCC passes!
PipelineText = PipelineText.substr(End);
}
if (PipelineText.empty() || PipelineText[0] == ')')
return true;
assert(PipelineText[0] == ',');
PipelineText = PipelineText.substr(1);
}
}
bool PassBuilder::parseCGSCCPass(CGSCCPassManager &CGPM,
const PipelineElement &E, bool VerifyEachPass,
bool DebugLogging) {
auto &Name = E.Name;
auto &InnerPipeline = E.InnerPipeline;
// First handle complex passes like the pass managers which carry pipelines.
if (!InnerPipeline.empty()) {
if (Name == "cgscc") {
CGSCCPassManager NestedCGPM(DebugLogging);
if (!parseCGSCCPassPipeline(NestedCGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(std::move(NestedCGPM));
return true;
}
if (Name == "function") {
FunctionPassManager FPM(DebugLogging);
if (!parseFunctionPassPipeline(FPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
// Add the nested pass manager with the appropriate adaptor.
CGPM.addPass(
createCGSCCToFunctionPassAdaptor(std::move(FPM), DebugLogging));
return true;
}
if (auto Count = parseRepeatPassName(Name)) {
CGSCCPassManager NestedCGPM(DebugLogging);
if (!parseCGSCCPassPipeline(NestedCGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
CGPM.addPass(createRepeatedPass(*Count, std::move(NestedCGPM)));
return true;
}
if (auto MaxRepetitions = parseDevirtPassName(Name)) {
CGSCCPassManager NestedCGPM(DebugLogging);
if (!parseCGSCCPassPipeline(NestedCGPM, InnerPipeline, VerifyEachPass,
DebugLogging))
return false;
CGPM.addPass(createDevirtSCCRepeatedPass(std::move(NestedCGPM),
*MaxRepetitions, DebugLogging));
return true;
}
// Normal passes can't have pipelines.
return false;
}
// Now expand the basic registered passes from the .inc file.
#define CGSCC_PASS(NAME, CREATE_PASS) \
if (Name == NAME) { \
CGPM.addPass(CREATE_PASS); \
return true; \
}
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
if (Name == "require<" NAME ">") { \
CGPM.addPass(RequireAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type, \
LazyCallGraph::SCC, CGSCCAnalysisManager, LazyCallGraph &, \
CGSCCUpdateResult &>()); \
return true; \
} \
if (Name == "invalidate<" NAME ">") { \
CGPM.addPass(InvalidateAnalysisPass< \
std::remove_reference<decltype(CREATE_PASS)>::type>()); \
return true; \
}
#include "PassRegistry.def"
return false;
}
