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llc: Create custom pass pipeline for .mir files; NFCI

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Create a custom pass pipeline when loading .mir files even in
--start-after/--start-before cases.

This streamlines the mir handling code and prepares for an upcoming
commit.

llvm-svn: 304755
This commit is contained in:
Matthias Braun 2017-06-06 00:26:24 +00:00
parent 13c1e17841
commit 43013e3c16
1 changed files with 45 additions and 33 deletions
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78
tools/llc/llc.cpp
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@ -518,54 +518,66 @@ static int compileModule(char **argv, LLVMContext &Context) {
OS = BOS.get();
}
if (!RunPassNames->empty()) {
if (!StartAfter.empty() || !StopAfter.empty() || !StartBefore.empty() ||
!StopBefore.empty()) {
errs() << argv[0] << ": start-after and/or stop-after passes are "
"redundant when run-pass is specified.\n";
return 1;
}
if (!MIR) {
errs() << argv[0] << ": run-pass needs a .mir input.\n";
return 1;
}
const char *argv0 = argv[0];
AnalysisID StartBeforeID = getPassID(argv0, "start-before", StartBefore);
AnalysisID StartAfterID = getPassID(argv0, "start-after", StartAfter);
AnalysisID StopAfterID = getPassID(argv0, "stop-after", StopAfter);
AnalysisID StopBeforeID = getPassID(argv0, "stop-before", StopBefore);
if (StartBeforeID && StartAfterID) {
errs() << argv0 << ": -start-before and -start-after specified!\n";
return 1;
}
if (StopBeforeID && StopAfterID) {
errs() << argv0 << ": -stop-before and -stop-after specified!\n";
return 1;
}
if (MIR) {
// Construct a custom pass pipeline that starts after instruction
// selection.
LLVMTargetMachine &LLVMTM = static_cast<LLVMTargetMachine&>(*Target);
TargetPassConfig &TPC = *LLVMTM.createPassConfig(PM);
TPC.setDisableVerify(NoVerify);
PM.add(&TPC);
MachineModuleInfo *MMI = new MachineModuleInfo(&LLVMTM);
MMI->setMachineFunctionInitializer(MIR.get());
PM.add(MMI);
TPC.printAndVerify("");
for (const std::string &RunPassName : *RunPassNames) {
if (addPass(PM, argv[0], RunPassName, TPC))
if (!RunPassNames->empty()) {
if (!StartAfter.empty() || !StopAfter.empty() || !StartBefore.empty() ||
!StopBefore.empty()) {
errs() << argv0 << ": start-after and/or stop-after passes are "
"redundant when run-pass is specified.\n";
return 1;
}
PM.add(createPrintMIRPass(*OS));
} else {
const char *argv0 = argv[0];
AnalysisID StartBeforeID = getPassID(argv0, "start-before", StartBefore);
AnalysisID StartAfterID = getPassID(argv0, "start-after", StartAfter);
AnalysisID StopAfterID = getPassID(argv0, "stop-after", StopAfter);
AnalysisID StopBeforeID = getPassID(argv0, "stop-before", StopBefore);
}
if (StartBeforeID && StartAfterID) {
errs() << argv[0] << ": -start-before and -start-after specified!\n";
return 1;
}
if (StopBeforeID && StopAfterID) {
errs() << argv[0] << ": -stop-before and -stop-after specified!\n";
return 1;
for (const std::string &RunPassName : *RunPassNames) {
if (addPass(PM, argv0, RunPassName, TPC))
return 1;
}
} else {
TPC.setStartStopPasses(StartBeforeID, StartAfterID, StopBeforeID,
StopAfterID);
TPC.addISelPasses();
TPC.addMachinePasses();
}
TPC.setInitialized();
// Ask the target to add backend passes as necessary.
if (Target->addPassesToEmitFile(PM, *OS, FileType, NoVerify,
StartBeforeID, StartAfterID, StopBeforeID,
StopAfterID, MIR.get())) {
errs() << argv[0] << ": target does not support generation of this"
if (!StopBefore.empty() || !StopAfter.empty() || !RunPassNames->empty()) {
PM.add(createPrintMIRPass(*OS));
} else if (LLVMTM.addAsmPrinter(PM, *OS, FileType, MMI->getContext())) {
errs() << argv0 << ": target does not support generation of this"
<< " file type!\n";
return 1;
}
PM.add(createFreeMachineFunctionPass());
} else if (Target->addPassesToEmitFile(PM, *OS, FileType, NoVerify,
StartBeforeID, StartAfterID,
StopBeforeID, StopAfterID)) {
errs() << argv0 << ": target does not support generation of this"
<< " file type!\n";
return 1;
}
// Before executing passes, print the final values of the LLVM options.