Improve branch operations (#1442)

* Add Compare instruction

* Add BranchIf instruction

* Use test when BranchIf & Compare against 0

* Propagate Compare into BranchIfTrue/False use

- Propagate Compare operations into their BranchIfTrue/False use and
  turn these into a BranchIf.

- Clean up Comparison enum.

* Replace BranchIfTrue/False with BranchIf

* Use BranchIf in EmitPtPointerLoad

- Using BranchIf early instead of BranchIfTrue/False improves LCQ and
  reduces the amount of work needed by the Optimizer.

  EmitPtPointerLoader was a/the big producer of BranchIfTrue/False.

- Fix asserts firing when assembling BitwiseAnd because of type
  mismatch in EmitStoreExclusive. This is harmless and should not
  cause any diffs.

* Increment PPTC interval version

* Improve IRDumper for BranchIf & Compare

* Use BranchIf in EmitNativeCall

* Clean up

* Do not emit test when immediately preceded by and

2 files changed, 26 insertions, 12 deletions

diff --git a/ARMeilleure/IntermediateRepresentation/Comparison.cs b/ARMeilleure/IntermediateRepresentation/Comparison.cs
new file mode 100644
index 00000000..628ce105
--- /dev/null
+++ b/ARMeilleure/IntermediateRepresentation/Comparison.cs
@@ -0,0 +1,24 @@
+namespace ARMeilleure.IntermediateRepresentation
+{
+    enum Comparison
+    {
+        Equal             = 0,
+        NotEqual          = 1,
+        Greater           = 2,
+        LessOrEqual       = 3,
+        GreaterUI         = 4,
+        LessOrEqualUI     = 5,
+        GreaterOrEqual    = 6,
+        Less              = 7,
+        GreaterOrEqualUI  = 8,
+        LessUI            = 9
+    }
+
+    static class ComparisonExtensions
+    {
+        public static Comparison Invert(this Comparison comp)
+        {
+            return (Comparison)((int)comp ^ 1);
+        }
+    }
+}
diff --git a/ARMeilleure/IntermediateRepresentation/Instruction.cs b/ARMeilleure/IntermediateRepresentation/Instruction.cs
index 8ffaf3dc..c583a2f2 100644
--- a/ARMeilleure/IntermediateRepresentation/Instruction.cs
+++ b/ARMeilleure/IntermediateRepresentation/Instruction.cs
@@ -8,23 +8,13 @@ namespace ARMeilleure.IntermediateRepresentation
         BitwiseNot,
         BitwiseOr,
         Branch,
-        BranchIfFalse,
-        BranchIfTrue,
+        BranchIf,
         ByteSwap,
         Call,
+        Compare,
         CompareAndSwap,
         CompareAndSwap16,
         CompareAndSwap8,
-        CompareEqual,
-        CompareGreater,
-        CompareGreaterOrEqual,
-        CompareGreaterOrEqualUI,
-        CompareGreaterUI,
-        CompareLess,
-        CompareLessOrEqual,
-        CompareLessOrEqualUI,
-        CompareLessUI,
-        CompareNotEqual,
         ConditionalSelect,
         ConvertI64ToI32,
         ConvertToFP,