Add LiveIntervalUnion print methods, RegAllocGreedy::trySplit debug spew.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121783 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalUnion.cpp b/lib/CodeGen/LiveIntervalUnion.cpp
index e8b3991..d18044a 100644
--- a/lib/CodeGen/LiveIntervalUnion.cpp
+++ b/lib/CodeGen/LiveIntervalUnion.cpp
@@ -20,8 +20,6 @@
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetRegisterInfo.h"
-#include <algorithm>
-
using namespace llvm;
@@ -72,11 +70,34 @@
LiveIntervalUnion::print(raw_ostream &OS, const TargetRegisterInfo *TRI) const {
OS << "LIU ";
TRI->printReg(RepReg, OS);
+ if (empty()) {
+ OS << " empty\n";
+ return;
+ }
for (LiveSegments::const_iterator SI = Segments.begin(); SI.valid(); ++SI) {
OS << " [" << SI.start() << ' ' << SI.stop() << "):";
TRI->printReg(SI.value()->reg, OS);
}
- OS << "\n";
+ OS << '\n';
+}
+
+void LiveIntervalUnion::InterferenceResult::print(raw_ostream &OS,
+ const TargetRegisterInfo *TRI) const {
+ OS << '[' << start() << ';' << stop() << ")\t";
+ interference()->print(OS, TRI);
+}
+
+void LiveIntervalUnion::Query::print(raw_ostream &OS,
+ const TargetRegisterInfo *TRI) {
+ OS << "Interferences with ";
+ LiveUnion->print(OS, TRI);
+ InterferenceResult IR = firstInterference();
+ while (isInterference(IR)) {
+ OS << " ";
+ IR.print(OS, TRI);
+ OS << '\n';
+ nextInterference(IR);
+ }
}
#ifndef NDEBUG