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llc: Add a 'run-pass' option.

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This commit adds a 'run-pass' option to llc, which instructs the compiler to run
one specific code generation pass only.

Llc already has the 'start-after' and the 'stop-after' options, and this new
option complements the other two by making it easier to write tests that want
to invoke a single pass only.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10776


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241476 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alex Lorenz
2015-07-06 17:44:26 +00:00
parent b560f9ca2f
commit edfa571cbd
9 changed files with 81 additions and 42 deletions
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18
lib/CodeGen/LLVMTargetMachine.cpp
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@@ -90,8 +90,8 @@ TargetIRAnalysis LLVMTargetMachine::getTargetIRAnalysis() {
/// addPassesToX helper drives creation and initialization of TargetPassConfig.
static MCContext *
addPassesToGenerateCode(LLVMTargetMachine *TM, PassManagerBase &PM,
bool DisableVerify, AnalysisID StartAfter,
AnalysisID StopAfter,
bool DisableVerify, AnalysisID StartBefore,
AnalysisID StartAfter, AnalysisID StopAfter,
MachineFunctionInitializer *MFInitializer = nullptr) {
// Add internal analysis passes from the target machine.
@@ -100,7 +100,7 @@ addPassesToGenerateCode(LLVMTargetMachine *TM, PassManagerBase &PM,
// Targets may override createPassConfig to provide a target-specific
// subclass.
TargetPassConfig *PassConfig = TM->createPassConfig(PM);
PassConfig->setStartStopPasses(StartAfter, StopAfter);
PassConfig->setStartStopPasses(StartBefore, StartAfter, StopAfter);
// Set PassConfig options provided by TargetMachine.
PassConfig->setDisableVerify(DisableVerify);
@@ -143,11 +143,12 @@ addPassesToGenerateCode(LLVMTargetMachine *TM, PassManagerBase &PM,
bool LLVMTargetMachine::addPassesToEmitFile(
PassManagerBase &PM, raw_pwrite_stream &Out, CodeGenFileType FileType,
bool DisableVerify, AnalysisID StartAfter, AnalysisID StopAfter,
MachineFunctionInitializer *MFInitializer) {
bool DisableVerify, AnalysisID StartBefore, AnalysisID StartAfter,
AnalysisID StopAfter, MachineFunctionInitializer *MFInitializer) {
// Add common CodeGen passes.
MCContext *Context = addPassesToGenerateCode(
this, PM, DisableVerify, StartAfter, StopAfter, MFInitializer);
MCContext *Context =
addPassesToGenerateCode(this, PM, DisableVerify, StartBefore, StartAfter,
StopAfter, MFInitializer);
if (!Context)
return true;
@@ -231,7 +232,8 @@ bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx,
raw_pwrite_stream &Out,
bool DisableVerify) {
// Add common CodeGen passes.
Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr);
Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr,
nullptr);
if (!Ctx)
return true;