From d202899431e49484d907608dbe74fa6d708bb07b Mon Sep 17 00:00:00 2001
From: Philip Reames <listmail@philipreames.com>
Date: Thu, 15 Aug 2019 18:49:39 +0000
Subject: [PATCH] [NFC] Add a couple of dump routines for RegisterPressure
 helper classes

llvm-svn: 369037
---
 llvm/include/llvm/CodeGen/RegisterPressure.h |  3 +++
 llvm/lib/CodeGen/RegisterPressure.cpp        | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/llvm/include/llvm/CodeGen/RegisterPressure.h b/llvm/include/llvm/CodeGen/RegisterPressure.h
index 996f83d3b4aa..92333b859f1b 100644
--- a/llvm/include/llvm/CodeGen/RegisterPressure.h
+++ b/llvm/include/llvm/CodeGen/RegisterPressure.h
@@ -129,6 +129,8 @@ public:
   bool operator==(const PressureChange &RHS) const {
     return PSetID == RHS.PSetID && UnitInc == RHS.UnitInc;
   }
+
+  void dump() const;
 };
 
 /// List of PressureChanges in order of increasing, unique PSetID.
@@ -248,6 +250,7 @@ struct RegPressureDelta {
   bool operator!=(const RegPressureDelta &RHS) const {
     return !operator==(RHS);
   }
+  void dump() const;
 };
 
 /// A set of live virtual registers and physical register units.
diff --git a/llvm/lib/CodeGen/RegisterPressure.cpp b/llvm/lib/CodeGen/RegisterPressure.cpp
index cdcbabfa2581..8a287635c81b 100644
--- a/llvm/lib/CodeGen/RegisterPressure.cpp
+++ b/llvm/lib/CodeGen/RegisterPressure.cpp
@@ -134,6 +134,22 @@ void PressureDiff::dump(const TargetRegisterInfo &TRI) const {
   }
   dbgs() << '\n';
 }
+
+LLVM_DUMP_METHOD
+void PressureChange::dump() const {
+  dbgs() << "[" << getPSetOrMax() << ", " << getUnitInc() << "]\n";
+}
+
+void RegPressureDelta::dump() const {
+  dbgs() << "[Excess=";
+  Excess.dump();
+  dbgs() << ", CriticalMax=";
+  CriticalMax.dump();
+  dbgs() << ", CurrentMax=";
+  CurrentMax.dump();
+  dbgs() << "]\n";
+}
+
 #endif
 
 void RegPressureTracker::increaseRegPressure(unsigned RegUnit,