/// point where StadardID is expected, add TargetID in its place.
void substitutePass(char &StandardID, char &TargetID);
+ /// Insert InsertedPassID pass after TargetPassID pass.
+ void insertPass(const char &TargetPassID, const char &InsertedPassID);
+
/// Allow the target to enable a specific standard pass by default.
void enablePass(char &ID) { substitutePass(ID, ID); }
/// branches.
extern char &BranchFolderPassID;
+ /// MachineFunctionPrinterPass - This pass prints out MachineInstr's.
+ extern char &MachineFunctionPrinterPassID;
+
/// TailDuplicate - Duplicate blocks with unconditional branches
/// into tails of their predecessors.
extern char &TailDuplicateID;
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Debug.h"
using namespace llvm;
raw_ostream &OS;
const std::string Banner;
+ MachineFunctionPrinterPass() : MachineFunctionPass(ID), OS(dbgs()) { }
MachineFunctionPrinterPass(raw_ostream &os, const std::string &banner)
: MachineFunctionPass(ID), OS(os), Banner(banner) {}
char MachineFunctionPrinterPass::ID = 0;
}
+char &MachineFunctionPrinterPassID = MachineFunctionPrinterPass::ID;
+INITIALIZE_PASS(MachineFunctionPrinterPass, "print-machineinstrs",
+ "Machine Function Printer", false, false)
+
namespace llvm {
/// Returns a newly-created MachineFunction Printer pass. The
/// default banner is empty.
static cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden,
cl::desc("Verify generated machine code"),
cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL));
+static cl::opt<std::string>
+PrintMachineInstrs("print-machineinstrs", cl::ValueOptional,
+ cl::desc("Print machine instrs"),
+ cl::value_desc("pass-name"), cl::init("option-unspecified"));
/// Allow standard passes to be disabled by command line options. This supports
/// simple binary flags that either suppress the pass or do nothing.
// default by substituting NoPass, and the user may still enable that standard
// pass with an explicit command line option.
DenseMap<AnalysisID,AnalysisID> TargetPasses;
+
+ /// Store the pairs of <AnalysisID, AnalysisID> of which the second pass
+ /// is inserted after each instance of the first one.
+ SmallVector<std::pair<AnalysisID, AnalysisID>, 4> InsertedPasses;
};
} // namespace llvm
substitutePass(MachineSchedulerID, NoPassID);
}
+/// Insert InsertedPassID pass after TargetPassID.
+void TargetPassConfig::insertPass(const char &TargetPassID,
+ const char &InsertedPassID) {
+ assert(&TargetPassID != &InsertedPassID && "Insert a pass after itself!");
+ std::pair<AnalysisID, AnalysisID> P(&TargetPassID, &InsertedPassID);
+ Impl->InsertedPasses.push_back(P);
+}
+
/// createPassConfig - Create a pass configuration object to be used by
/// addPassToEmitX methods for generating a pipeline of CodeGen passes.
///
if (!P)
llvm_unreachable("Pass ID not registered");
PM->add(P);
+ // Add the passes after the pass P if there is any.
+ for (SmallVector<std::pair<AnalysisID, AnalysisID>, 4>::iterator
+ I = Impl->InsertedPasses.begin(), E = Impl->InsertedPasses.end();
+ I != E; ++I) {
+ if ((*I).first == &ID) {
+ assert((*I).second && "Illegal Pass ID!");
+ Pass *NP = Pass::createPass((*I).second);
+ assert(NP && "Pass ID not registered");
+ PM->add(NP);
+ }
+ }
return FinalID;
}
// Print the instruction selected machine code...
printAndVerify("After Instruction Selection");
+ // Insert a machine instr printer pass after the specified pass.
+ // If -print-machineinstrs specified, print machineinstrs after all passes.
+ if (StringRef(PrintMachineInstrs.getValue()).equals(""))
+ TM->Options.PrintMachineCode = true;
+ else if (!StringRef(PrintMachineInstrs.getValue())
+ .equals("option-unspecified")) {
+ const PassRegistry *PR = PassRegistry::getPassRegistry();
+ const PassInfo *TPI = PR->getPassInfo(PrintMachineInstrs.getValue());
+ const PassInfo *IPI = PR->getPassInfo(StringRef("print-machineinstrs"));
+ assert (TPI && IPI && "Pass ID not registered!");
+ const char *TID = (char *)(TPI->getTypeInfo());
+ const char *IID = (char *)(IPI->getTypeInfo());
+ insertPass(*TID, *IID);
+ }
+
// Expand pseudo-instructions emitted by ISel.
addPass(ExpandISelPseudosID);
cl::desc("Enable less precise MAD instructions to be generated"),
cl::init(false));
-static cl::opt<bool>
-PrintCode("print-machineinstrs",
- cl::desc("Print generated machine code"),
- cl::init(false));
-
static cl::opt<bool>
DisableFPElim("disable-fp-elim",
cl::desc("Disable frame pointer elimination optimization"),
TargetOptions Options;
Options.LessPreciseFPMADOption = EnableFPMAD;
- Options.PrintMachineCode = PrintCode;
Options.NoFramePointerElim = DisableFPElim;
Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
Options.NoExcessFPPrecision = DisableExcessPrecision;