Add live-ins to MachineBasicBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34111 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index a626f4f..d67159d 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -15,6 +15,7 @@
#include "llvm/BasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/MRegisterInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
@@ -89,8 +90,20 @@
print(*cerr.stream());
}
+static inline void OutputReg(std::ostream &os, unsigned RegNo,
+ const MRegisterInfo *MRI = 0) {
+ if (!RegNo || MRegisterInfo::isPhysicalRegister(RegNo)) {
+ if (MRI)
+ os << " %" << MRI->get(RegNo).Name;
+ else
+ os << " %mreg(" << RegNo << ")";
+ } else
+ os << " %reg" << RegNo;
+}
+
void MachineBasicBlock::print(std::ostream &OS) const {
- if(!getParent()) {
+ const MachineFunction *MF = getParent();
+ if(!MF) {
OS << "Can't print out MachineBasicBlock because parent MachineFunction"
<< " is null\n";
return;
@@ -101,6 +114,14 @@
if (LBB) OS << LBB->getName();
OS << " (" << (const void*)this
<< ", LLVM BB @" << (const void*) LBB << ", ID#" << getNumber()<< "):\n";
+
+ const MRegisterInfo *MRI = MF->getTarget().getRegisterInfo();
+ if (livein_begin() != livein_end()) {
+ OS << "Live Ins:";
+ for (livein_iterator I = livein_begin(), E = livein_end(); I != E; ++I)
+ OutputReg(OS, *I, MRI);
+ OS << "\n";
+ }
// Print the preds of this block according to the CFG.
if (!pred_empty()) {
OS << " Predecessors according to CFG:";