mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-22 20:20:03 +00:00
5b12a2f703
manager tests to use them and be significantly more comprehensive. This, naturally, uncovered a bug where the CGSCC pass manager wasn't printing analyses when they were run. The only remaining core manipulator is I think an invalidate pass similar to the require pass. That'll be next. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225240 91177308-0d34-0410-b5e6-96231b3b80d8
404 lines
14 KiB
C++
404 lines
14 KiB
C++
//===- Passes.cpp - Parsing, selection, and running of passes -------------===//
|
|
//
|
|
// 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 infrastructure to parse and build a custom pass
|
|
/// manager based on a commandline flag. It also provides helpers to aid in
|
|
/// analyzing, debugging, and testing pass structures.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Passes.h"
|
|
#include "llvm/Analysis/CGSCCPassManager.h"
|
|
#include "llvm/Analysis/LazyCallGraph.h"
|
|
#include "llvm/IR/IRPrintingPasses.h"
|
|
#include "llvm/IR/PassManager.h"
|
|
#include "llvm/IR/Verifier.h"
|
|
#include "llvm/Support/Debug.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 llvm::registerModuleAnalyses(ModuleAnalysisManager &MAM) {
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
MAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
void llvm::registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM) {
|
|
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
|
|
CGAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
void llvm::registerFunctionAnalyses(FunctionAnalysisManager &FAM) {
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
FAM.registerPass(CREATE_PASS);
|
|
#include "PassRegistry.def"
|
|
}
|
|
|
|
static bool isModulePassName(StringRef Name) {
|
|
#define MODULE_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool isCGSCCPassName(StringRef Name) {
|
|
#define CGSCC_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool isFunctionPassName(StringRef Name) {
|
|
#define FUNCTION_PASS(NAME, CREATE_PASS) if (Name == NAME) return true;
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") \
|
|
return true;
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool parseModulePassName(ModulePassManager &MPM, StringRef Name) {
|
|
#define MODULE_PASS(NAME, CREATE_PASS) \
|
|
if (Name == NAME) { \
|
|
MPM.addPass(CREATE_PASS); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") { \
|
|
MPM.addPass(NoopAnalysisRequirementPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool parseCGSCCPassName(CGSCCPassManager &CGPM, StringRef Name) {
|
|
#define CGSCC_PASS(NAME, CREATE_PASS) \
|
|
if (Name == NAME) { \
|
|
CGPM.addPass(CREATE_PASS); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") { \
|
|
CGPM.addPass(NoopAnalysisRequirementPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool parseFunctionPassName(FunctionPassManager &FPM, StringRef Name) {
|
|
#define FUNCTION_PASS(NAME, CREATE_PASS) \
|
|
if (Name == NAME) { \
|
|
FPM.addPass(CREATE_PASS); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
// We also support building a require pass around any analysis.
|
|
#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
|
|
if (Name == "require<" NAME ">") { \
|
|
FPM.addPass(NoopAnalysisRequirementPass<decltype(CREATE_PASS)>()); \
|
|
return true; \
|
|
}
|
|
#include "PassRegistry.def"
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool parseFunctionPassPipeline(FunctionPassManager &FPM,
|
|
StringRef &PipelineText,
|
|
bool VerifyEachPass) {
|
|
for (;;) {
|
|
// Parse nested pass managers by recursing.
|
|
if (PipelineText.startswith("function(")) {
|
|
FunctionPassManager NestedFPM;
|
|
|
|
// Parse the inner pipeline inte the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("function("));
|
|
if (!parseFunctionPassPipeline(NestedFPM, PipelineText, VerifyEachPass) ||
|
|
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);
|
|
}
|
|
}
|
|
|
|
static bool parseCGSCCPassPipeline(CGSCCPassManager &CGPM,
|
|
StringRef &PipelineText,
|
|
bool VerifyEachPass) {
|
|
for (;;) {
|
|
// Parse nested pass managers by recursing.
|
|
if (PipelineText.startswith("cgscc(")) {
|
|
CGSCCPassManager NestedCGPM;
|
|
|
|
// Parse the inner pipeline into the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("cgscc("));
|
|
if (!parseCGSCCPassPipeline(NestedCGPM, PipelineText, VerifyEachPass) ||
|
|
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;
|
|
|
|
// Parse the inner pipeline inte the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("function("));
|
|
if (!parseFunctionPassPipeline(NestedFPM, PipelineText, VerifyEachPass) ||
|
|
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);
|
|
}
|
|
}
|
|
|
|
static bool parseModulePassPipeline(ModulePassManager &MPM,
|
|
StringRef &PipelineText,
|
|
bool VerifyEachPass) {
|
|
for (;;) {
|
|
// Parse nested pass managers by recursing.
|
|
if (PipelineText.startswith("module(")) {
|
|
ModulePassManager NestedMPM;
|
|
|
|
// Parse the inner pipeline into the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("module("));
|
|
if (!parseModulePassPipeline(NestedMPM, PipelineText, VerifyEachPass) ||
|
|
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;
|
|
|
|
// Parse the inner pipeline inte the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("cgscc("));
|
|
if (!parseCGSCCPassPipeline(NestedCGPM, PipelineText, VerifyEachPass) ||
|
|
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;
|
|
|
|
// Parse the inner pipeline inte the nested manager.
|
|
PipelineText = PipelineText.substr(strlen("function("));
|
|
if (!parseFunctionPassPipeline(NestedFPM, PipelineText, VerifyEachPass) ||
|
|
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 llvm::parsePassPipeline(ModulePassManager &MPM, StringRef PipelineText,
|
|
bool VerifyEachPass) {
|
|
// Look at the first entry to figure out which layer to start parsing at.
|
|
if (PipelineText.startswith("module("))
|
|
return parseModulePassPipeline(MPM, PipelineText, VerifyEachPass) &&
|
|
PipelineText.empty();
|
|
if (PipelineText.startswith("cgscc(")) {
|
|
CGSCCPassManager CGPM;
|
|
if (!parseCGSCCPassPipeline(CGPM, PipelineText, VerifyEachPass) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM)));
|
|
return true;
|
|
}
|
|
if (PipelineText.startswith("function(")) {
|
|
FunctionPassManager FPM;
|
|
if (!parseFunctionPassPipeline(FPM, PipelineText, VerifyEachPass) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
return true;
|
|
}
|
|
|
|
// This isn't a direct pass manager name, look for the end of a pass name.
|
|
StringRef FirstName =
|
|
PipelineText.substr(0, PipelineText.find_first_of(",)"));
|
|
if (isModulePassName(FirstName))
|
|
return parseModulePassPipeline(MPM, PipelineText, VerifyEachPass) &&
|
|
PipelineText.empty();
|
|
|
|
if (isCGSCCPassName(FirstName)) {
|
|
CGSCCPassManager CGPM;
|
|
if (!parseCGSCCPassPipeline(CGPM, PipelineText, VerifyEachPass) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(std::move(CGPM)));
|
|
return true;
|
|
}
|
|
|
|
if (isFunctionPassName(FirstName)) {
|
|
FunctionPassManager FPM;
|
|
if (!parseFunctionPassPipeline(FPM, PipelineText, VerifyEachPass) ||
|
|
!PipelineText.empty())
|
|
return false;
|
|
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|