mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
2349136630
This will provide the analogous replacements for the PassManagerBuilder and other code long term. This code is extracted from the opt tool currently, and I plan to extend it as I build up support for using the new pass manager in Clang and other places. Mailing this out for review in part to let folks comment on the terrible names here. A brief word about why I chose the names I did. The library is called "Passes" to try and make it clear that it is a high-level utility and where *all* of the passes come together and are registered in a common library. I didn't want it to be *limited* to a registry though, the registry is just one component. The class is a "PassBuilder" but this name I'm less happy with. It doesn't build passes in any traditional sense and isn't a Builder-style API at all. The class is a PassRegisterer or PassAdder, but neither of those really make a lot of sense. This class is responsible for constructing passes for registry in an analysis manager or for population of a pass pipeline. If anyone has a better name, I would love to hear it. The other candidate I looked at was PassRegistrar, but that doesn't really fit either. There is no register of all the passes in use, and so I think continuing the "registry" analog outside of the registry of pass *names* and *types* is a mistake. The objects themselves are just objects with the new pass manager. Differential Revision: http://reviews.llvm.org/D8054 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231556 91177308-0d34-0410-b5e6-96231b3b80d8
413 lines
16 KiB
C++
413 lines
16 KiB
C++
//===- Parsing, selection, and construction of pass pipelines -------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
/// \file
|
|
///
|
|
/// This file provides the implementation of the PassBuilder based on our
|
|
/// static pass registry as well as related functionality. It also provides
|
|
/// helpers to aid in analyzing, debugging, and testing passes and pass
|
|
/// pipelines.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Passes/PassBuilder.h"
|
|
#include "llvm/Analysis/AssumptionCache.h"
|
|
#include "llvm/Analysis/CGSCCPassManager.h"
|
|
#include "llvm/Analysis/LazyCallGraph.h"
|
|
#include "llvm/Analysis/LoopInfo.h"
|
|
#include "llvm/Analysis/TargetLibraryInfo.h"
|
|
#include "llvm/Analysis/TargetTransformInfo.h"
|
|
#include "llvm/IR/Dominators.h"
|
|
#include "llvm/IR/IRPrintingPasses.h"
|
|
#include "llvm/IR/PassManager.h"
|
|
#include "llvm/IR/Verifier.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Target/TargetMachine.h"
|
|
#include "llvm/Transforms/InstCombine/InstCombine.h"
|
|
#include "llvm/Transforms/Scalar/EarlyCSE.h"
|
|
#include "llvm/Transforms/Scalar/LowerExpectIntrinsic.h"
|
|
#include "llvm/Transforms/Scalar/SimplifyCFG.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
/// \brief No-op module pass which does nothing.
|
|
struct NoOpModulePass {
|
|
PreservedAnalyses run(Module &M) { return PreservedAnalyses::all(); }
|
|
static StringRef name() { return "NoOpModulePass"; }
|
|
};
|
|
|
|
/// \brief No-op module analysis.
|
|
struct NoOpModuleAnalysis {
|
|
struct Result {};
|
|
Result run(Module &) { return Result(); }
|
|
static StringRef name() { return "NoOpModuleAnalysis"; }
|
|
static void *ID() { return (void *)&PassID; }
|
|
private:
|
|
static char PassID;
|
|
};
|
|
|
|
char NoOpModuleAnalysis::PassID;
|
|
|
|
/// \brief No-op CGSCC pass which does nothing.
|
|
struct NoOpCGSCCPass {
|
|
PreservedAnalyses run(LazyCallGraph::SCC &C) {
|
|
return PreservedAnalyses::all();
|
|
}
|
|
static StringRef name() { return "NoOpCGSCCPass"; }
|
|
};
|
|
|
|
/// \brief No-op CGSCC analysis.
|
|
struct NoOpCGSCCAnalysis {
|
|
struct Result {};
|
|
Result run(LazyCallGraph::SCC &) { return Result(); }
|
|
static StringRef name() { return "NoOpCGSCCAnalysis"; }
|
|
static void *ID() { return (void *)&PassID; }
|
|
private:
|
|
static char PassID;
|
|
};
|
|
|
|
char NoOpCGSCCAnalysis::PassID;
|
|
|
|
/// \brief No-op function pass which does nothing.
|
|
struct NoOpFunctionPass {
|
|
PreservedAnalyses run(Function &F) { return PreservedAnalyses::all(); }
|
|
static StringRef name() { return "NoOpFunctionPass"; }
|
|
};
|
|
|
|
/// \brief No-op function analysis.
|
|
struct NoOpFunctionAnalysis {
|
|
struct Result {};
|
|
Result run(Function &) { return Result(); }
|
|
static StringRef name() { return "NoOpFunctionAnalysis"; }
|
|
static void *ID() { return (void *)&PassID; }
|
|
private:
|
|
static char PassID;
|
|
};
|
|
|
|
char NoOpFunctionAnalysis::PassID;
|
|
|
|
} // End anonymous namespace.
|
|
|
|
void PassBuilder::registerModuleAnalyses(ModuleAnalysisManager &MAM) {
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
MAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
void PassBuilder::registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM) {
|
|
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
|
|
CGAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
void PassBuilder::registerFunctionAnalyses(FunctionAnalysisManager &FAM) {
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
FAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
static bool isModulePassName(StringRef Name) {
|
|
#define MODULE_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
static bool isCGSCCPassName(StringRef Name) {
|
|
#define CGSCC_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool isFunctionPassName(StringRef Name) {
|
|
#define FUNCTION_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">" || Name == "invalidate<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
bool PassBuilder::parseModulePassName(ModulePassManager &MPM, StringRef Name) {
|
|
#define MODULE_PASS(NAME, CREATE_PASS) \
|
|
if (Name == NAME) { \
|
|
MPM.addPass(CREATE_PASS); \
|
|
return true; \
|
|
}
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") { \
|
|
MPM.addPass(RequireAnalysisPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
} \
|
|
if (Name == "invalidate<" NAME ">") { \
|
|
MPM.addPass(InvalidateAnalysisPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
bool PassBuilder::parseCGSCCPassName(CGSCCPassManager &CGPM, StringRef Name) {
|
|
#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<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
} \
|
|
if (Name == "invalidate<" NAME ">") { \
|
|
CGPM.addPass(InvalidateAnalysisPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
bool PassBuilder::parseFunctionPassName(FunctionPassManager &FPM,
|
|
StringRef Name) {
|
|
#define FUNCTION_PASS(NAME, CREATE_PASS) \
|
|
if (Name == NAME) { \
|
|
FPM.addPass(CREATE_PASS); \
|
|
return true; \
|
|
}
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") { \
|
|
FPM.addPass(RequireAnalysisPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
} \
|
|
if (Name == "invalidate<" NAME ">") { \
|
|
FPM.addPass(InvalidateAnalysisPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
bool PassBuilder::parseFunctionPassPipeline(FunctionPassManager &FPM,
|
|
StringRef &PipelineText,
|
|
bool VerifyEachPass,
|
|
bool DebugLogging) {
|
|
for (;;) {
|
|
// Parse nested pass managers by recursing.
|
|
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.
|
|
FPM.addPass(std::move(NestedFPM));
|
|
} else {
|
|
// Otherwise try to parse a pass name.
|
|
size_t End = PipelineText.find_first_of(",)");
|
|
if (!parseFunctionPassName(FPM, PipelineText.substr(0, End)))
|
|
return false;
|
|
if (VerifyEachPass)
|
|
FPM.addPass(VerifierPass());
|
|
|
|
PipelineText = PipelineText.substr(End);
|
|
}
|
|
|
|
if (PipelineText.empty() || PipelineText[0] == ')')
|
|
return true;
|
|
|
|
assert(PipelineText[0] == ',');
|
|
PipelineText = PipelineText.substr(1);
|
|
}
|
|
}
|
|
|
|
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)));
|
|
} 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::parseModulePassPipeline(ModulePassManager &MPM,
|
|
StringRef &PipelineText,
|
|
bool VerifyEachPass,
|
|
bool DebugLogging) {
|
|
for (;;) {
|
|
// Parse nested pass managers by recursing.
|
|
if (PipelineText.startswith("module(")) {
|
|
ModulePassManager NestedMPM(DebugLogging);
|
|
|
|
// Parse the inner pipeline into the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("module("));
|
|
if (!parseModulePassPipeline(NestedMPM, PipelineText, VerifyEachPass,
|
|
DebugLogging) ||
|
|
PipelineText.empty())
|
|
return false;
|
|
assert(PipelineText[0] == ')');
|
|
PipelineText = PipelineText.substr(1);
|
|
|
|
// Now add the nested manager as a module pass.
|
|
MPM.addPass(std::move(NestedMPM));
|
|
} else if (PipelineText.startswith("cgscc(")) {
|
|
CGSCCPassManager NestedCGPM(DebugLogging);
|
|
|
|
// Parse the inner pipeline inte 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.
|
|
MPM.addPass(
|
|
createModuleToPostOrderCGSCCPassAdaptor(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.
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(NestedFPM)));
|
|
} else {
|
|
// Otherwise try to parse a pass name.
|
|
size_t End = PipelineText.find_first_of(",)");
|
|
if (!parseModulePassName(MPM, PipelineText.substr(0, End)))
|
|
return false;
|
|
if (VerifyEachPass)
|
|
MPM.addPass(VerifierPass());
|
|
|
|
PipelineText = PipelineText.substr(End);
|
|
}
|
|
|
|
if (PipelineText.empty() || PipelineText[0] == ')')
|
|
return true;
|
|
|
|
assert(PipelineText[0] == ',');
|
|
PipelineText = PipelineText.substr(1);
|
|
}
|
|
}
|
|
|
|
// Primary pass pipeline description parsing routine.
|
|
// FIXME: Should this routine accept a TargetMachine or require the caller to
|
|
// pre-populate the analysis managers with target-specific stuff?
|
|
bool PassBuilder::parsePassPipeline(ModulePassManager &MPM,
|
|
StringRef PipelineText, bool VerifyEachPass,
|
|
bool DebugLogging) {
|
|
// By default, try to parse the pipeline as-if it were within an implicit
|
|
// 'module(...)' pass pipeline. If this will parse at all, it needs to
|
|
// consume the entire string.
|
|
if (parseModulePassPipeline(MPM, PipelineText, VerifyEachPass, DebugLogging))
|
|
return PipelineText.empty();
|
|
|
|
// This isn't parsable as a module pipeline, look for the end of a pass name
|
|
// and directly drop down to that layer.
|
|
StringRef FirstName =
|
|
PipelineText.substr(0, PipelineText.find_first_of(",)"));
|
|
assert(!isModulePassName(FirstName) &&
|
|
"Already handled all module pipeline options.");
|
|
|
|
// If this looks like a CGSCC pass, parse the whole thing as a CGSCC
|
|
// pipeline.
|
|
if (isCGSCCPassName(FirstName)) {
|
|
CGSCCPassManager CGPM(DebugLogging);
|
|
if (!parseCGSCCPassPipeline(CGPM, PipelineText, VerifyEachPass,
|
|
DebugLogging) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM)));
|
|
return true;
|
|
}
|
|
|
|
// Similarly, if this looks like a Function pass, parse the whole thing as
|
|
// a Function pipelien.
|
|
if (isFunctionPassName(FirstName)) {
|
|
FunctionPassManager FPM(DebugLogging);
|
|
if (!parseFunctionPassPipeline(FPM, PipelineText, VerifyEachPass,
|
|
DebugLogging) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|