diff options
| -rw-r--r-- | llvm/lib/CodeGen/MachineInstr.cpp | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp index e072ee1d6d5..036965bf965 100644 --- a/llvm/lib/CodeGen/MachineInstr.cpp +++ b/llvm/lib/CodeGen/MachineInstr.cpp @@ -33,6 +33,7 @@ #include "llvm/IR/Value.h" #include "llvm/MC/MCInstrDesc.h" #include "llvm/MC/MCSymbol.h" +#include "llvm/Support/CommandLine.h" #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/MathExtras.h" @@ -43,6 +44,11 @@ #include "llvm/Target/TargetSubtargetInfo.h" using namespace llvm; +static cl::opt<bool> PrintWholeRegMask( + "print-whole-regmask", + cl::desc("Print the full contents of regmask operands in IR dumps"), + cl::init(true), cl::Hidden); + //===----------------------------------------------------------------------===// // MachineOperand Implementation //===----------------------------------------------------------------------===// @@ -407,9 +413,26 @@ void MachineOperand::print(raw_ostream &OS, ModuleSlotTracker &MST, if (getOffset()) OS << "+" << getOffset(); OS << '>'; break; - case MachineOperand::MO_RegisterMask: - OS << "<regmask>"; + case MachineOperand::MO_RegisterMask: { + unsigned NumRegsInMask = 0; + unsigned NumRegsEmitted = 0; + OS << "<regmask"; + for (unsigned i = 0; i < TRI->getNumRegs(); ++i) { + unsigned MaskWord = i / 32; + unsigned MaskBit = i % 32; + if (getRegMask()[MaskWord] & (1 << MaskBit)) { + if (PrintWholeRegMask || NumRegsEmitted <= 10) { + OS << " " << PrintReg(i, TRI); + NumRegsEmitted++; + } + NumRegsInMask++; + } + } + if (NumRegsEmitted != NumRegsInMask) + OS << " and " << (NumRegsInMask - NumRegsEmitted) << " more..."; + OS << ">"; break; + } case MachineOperand::MO_RegisterLiveOut: OS << "<regliveout>"; break; |
