Use run-length encoding to represent identical adjacent cells in the pressure
and interval table. Reduces output HTML file sizes by ~80% in my test cases.
Also fix access of private member type by << operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108823 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RenderMachineFunction.h b/lib/CodeGen/RenderMachineFunction.h
index 1e604da..090b03e 100644
--- a/lib/CodeGen/RenderMachineFunction.h
+++ b/lib/CodeGen/RenderMachineFunction.h
@@ -223,6 +223,11 @@
const char *renderSuffix = 0);
private:
+ class Spacer;
+
+ template <typename OStream>
+ friend OStream& operator<<(OStream &os, const Spacer &s);
+
std::string fqn;
@@ -238,9 +243,12 @@
// Utilities.
typedef enum { Dead, Defined, Used, AliveReg, AliveStack } LiveState;
-
LiveState getLiveStateAt(const LiveInterval *li, SlotIndex i) const;
+ typedef enum { Zero, Low, High } PressureState;
+ PressureState getPressureStateAt(const TargetRegisterClass *trc,
+ SlotIndex i) const;
+
// ---------- Rendering methods ----------
/// For inserting spaces when pretty printing.
@@ -286,6 +294,14 @@
void renderPressureTableLegend(const Spacer &indent,
OStream &os) const;
+ /// \brief Render a consecutive set of HTML cells of the same class using
+ /// the colspan attribute for run-length encoding.
+ template <typename OStream, typename CellType>
+ void renderCellsWithRLE(
+ const Spacer &indent, OStream &os,
+ const std::pair<CellType, unsigned> &rleAccumulator,
+ const std::map<CellType, std::string> &cellTypeStrs) const;
+
/// \brief Render code listing, potentially with register pressure
/// and live intervals shown alongside.
template <typename OStream>