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Driver/Frontend: Add -emit-codegen-only, for running irgen + codegen but not the 

.s printer or .o writer.

llvm-svn: 104623
This commit is contained in:
Daniel Dunbar 2010-05-25 18:41:01 +00:00
parent 4a5b2c597b
commit 4c77a64391
6 changed files with 21 additions and 1 deletions
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2
clang/include/clang/Driver/CC1Options.td
View File

@ -314,6 +314,8 @@ def emit_llvm_bc : Flag<"-emit-llvm-bc">,
HelpText<"Build ASTs then convert to LLVM, emit .bc file">;
def emit_llvm_only : Flag<"-emit-llvm-only">,
HelpText<"Build ASTs and convert to LLVM, discarding output">;
def emit_codegen_only : Flag<"-emit-codegen-only">,
HelpText<"Generate machine code, but discard output">;
def emit_obj : Flag<"-emit-obj">,
HelpText<"Emit native object files">;
def rewrite_test : Flag<"-rewrite-test">,

5
clang/include/clang/Frontend/CodeGenAction.h
View File

@ -57,6 +57,11 @@ public:
EmitLLVMOnlyAction();
};
class EmitCodeGenOnlyAction : public CodeGenAction {
public:
EmitCodeGenOnlyAction();
};
class EmitObjAction : public CodeGenAction {
public:
EmitObjAction();

3
clang/include/clang/Frontend/FrontendOptions.h
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@ -30,7 +30,8 @@ namespace frontend {
EmitBC, ///< Emit a .bc file.
EmitHTML, ///< Translate input source into HTML.
EmitLLVM, ///< Emit a .ll file.
EmitLLVMOnly, ///< Generate LLVM IR, but do not
EmitLLVMOnly, ///< Generate LLVM IR, but do not emit anything.
EmitCodeGenOnly, ///< Generate machine code, but don't emit anything.
EmitObj, ///< Emit a .o file.
FixIt, ///< Parse and apply any fixits to the source.
GeneratePCH, ///< Generate pre-compiled header.

8
clang/lib/Frontend/CodeGenAction.cpp
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@ -48,6 +48,7 @@ namespace {
Backend_EmitBC, ///< Emit LLVM bitcode files
Backend_EmitLL, ///< Emit human-readable LLVM assembly
Backend_EmitNothing, ///< Don't emit anything (benchmarking mode)
Backend_EmitMCNull, ///< Run CodeGen, but don't emit anything
Backend_EmitObj ///< Emit native object files
};
@ -340,6 +341,10 @@ bool BackendConsumer::AddEmitPasses() {
TargetMachine::CodeGenFileType CGFT = TargetMachine::CGFT_AssemblyFile;
if (Action == Backend_EmitObj)
CGFT = TargetMachine::CGFT_ObjectFile;
else if (Action == Backend_EmitMCNull)
CGFT = TargetMachine::CGFT_Null;
else
assert(Action == Backend_EmitAssembly && "Invalid action!");
if (TM->addPassesToEmitFile(*PM, FormattedOutStream, CGFT, OptLevel,
/*DisableVerify=*/!CodeGenOpts.VerifyModule)) {
Diags.Report(diag::err_fe_unable_to_interface_with_target);
@ -557,6 +562,7 @@ ASTConsumer *CodeGenAction::CreateASTConsumer(CompilerInstance &CI,
break;
case Backend_EmitNothing:
break;
case Backend_EmitMCNull:
case Backend_EmitObj:
OS.reset(CI.createDefaultOutputFile(true, InFile, "o"));
break;
@ -579,4 +585,6 @@ EmitLLVMAction::EmitLLVMAction() : CodeGenAction(Backend_EmitLL) {}
EmitLLVMOnlyAction::EmitLLVMOnlyAction() : CodeGenAction(Backend_EmitNothing) {}
EmitCodeGenOnlyAction::EmitCodeGenOnlyAction() : CodeGenAction(Backend_EmitMCNull) {}
EmitObjAction::EmitObjAction() : CodeGenAction(Backend_EmitObj) {}

3
clang/lib/Frontend/CompilerInvocation.cpp
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@ -316,6 +316,7 @@ static const char *getActionName(frontend::ActionKind Kind) {
case frontend::EmitHTML: return "-emit-html";
case frontend::EmitLLVM: return "-emit-llvm";
case frontend::EmitLLVMOnly: return "-emit-llvm-only";
case frontend::EmitCodeGenOnly: return "-emit-codegen-only";
case frontend::EmitObj: return "-emit-obj";
case frontend::FixIt: return "-fixit";
case frontend::GeneratePCH: return "-emit-pch";
@ -927,6 +928,8 @@ ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, Diagnostic &Diags) {
Opts.ProgramAction = frontend::EmitLLVM; break;
case OPT_emit_llvm_only:
Opts.ProgramAction = frontend::EmitLLVMOnly; break;
case OPT_emit_codegen_only:
Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
case OPT_emit_obj:
Opts.ProgramAction = frontend::EmitObj; break;
case OPT_fixit_EQ:

1
clang/tools/driver/cc1_main.cpp
View File

@ -71,6 +71,7 @@ static FrontendAction *CreateFrontendBaseAction(CompilerInstance &CI) {
case EmitHTML: return new HTMLPrintAction();
case EmitLLVM: return new EmitLLVMAction();
case EmitLLVMOnly: return new EmitLLVMOnlyAction();
case EmitCodeGenOnly: return new EmitCodeGenOnlyAction();
case EmitObj: return new EmitObjAction();
case FixIt: return new FixItAction();
case GeneratePCH: return new GeneratePCHAction();