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-rw-r--r--lib/CodeGen/RenderMachineFunction.h170
1 files changed, 97 insertions, 73 deletions
diff --git a/lib/CodeGen/RenderMachineFunction.h b/lib/CodeGen/RenderMachineFunction.h
index 71a613b..8571992 100644
--- a/lib/CodeGen/RenderMachineFunction.h
+++ b/lib/CodeGen/RenderMachineFunction.h
@@ -28,77 +28,12 @@ namespace llvm {
class LiveIntervals;
class MachineInstr;
class MachineRegisterInfo;
+ class RenderMachineFunction;
class TargetRegisterClass;
class TargetRegisterInfo;
class VirtRegMap;
class raw_ostream;
- /// \brief Provide extra information about the physical and virtual registers
- /// in the function being compiled.
- class TargetRegisterExtraInfo {
- public:
- TargetRegisterExtraInfo();
-
- /// \brief Set up TargetRegisterExtraInfo with pointers to necessary
- /// sources of information.
- void setup(MachineFunction *mf, MachineRegisterInfo *mri,
- const TargetRegisterInfo *tri, LiveIntervals *lis);
-
- /// \brief Recompute tables for changed function.
- void reset();
-
- /// \brief Free all tables in TargetRegisterExtraInfo.
- void clear();
-
- /// \brief Maximum number of registers from trc which alias reg.
- unsigned getWorst(unsigned reg, const TargetRegisterClass *trc) const;
-
- /// \brief Returns the number of allocable registers in trc.
- unsigned getCapacity(const TargetRegisterClass *trc) const;
-
- /// \brief Return the number of registers of class trc that may be
- /// needed at slot i.
- unsigned getPressureAtSlot(const TargetRegisterClass *trc,
- SlotIndex i) const;
-
- /// \brief Return true if the number of registers of type trc that may be
- /// needed at slot i is greater than the capacity of trc.
- bool classOverCapacityAtSlot(const TargetRegisterClass *trc,
- SlotIndex i) const;
-
- private:
-
- MachineFunction *mf;
- MachineRegisterInfo *mri;
- const TargetRegisterInfo *tri;
- LiveIntervals *lis;
-
- typedef std::map<const TargetRegisterClass*, unsigned> WorstMapLine;
- typedef std::map<const TargetRegisterClass*, WorstMapLine> VRWorstMap;
- VRWorstMap vrWorst;
-
- typedef std::map<unsigned, WorstMapLine> PRWorstMap;
- PRWorstMap prWorst;
-
- typedef std::map<const TargetRegisterClass*, unsigned> CapacityMap;
- CapacityMap capacityMap;
-
- typedef std::map<const TargetRegisterClass*, unsigned> PressureMapLine;
- typedef std::map<SlotIndex, PressureMapLine> PressureMap;
- PressureMap pressureMap;
-
- bool mapsPopulated;
-
- /// \brief Initialise the 'worst' table.
- void initWorst();
-
- /// \brief Initialise the 'capacity' table.
- void initCapacity();
-
- /// \brief Initialise/Reset the 'pressure' and live states tables.
- void resetPressureAndLiveStates();
- };
-
/// \brief Helper class to process rendering options. Tries to be as lazy as
/// possible.
class MFRenderingOptions {
@@ -125,7 +60,7 @@ namespace llvm {
/// Initialise the rendering options.
void setup(MachineFunction *mf, const TargetRegisterInfo *tri,
- LiveIntervals *lis);
+ LiveIntervals *lis, const RenderMachineFunction *rmf);
/// Clear translations of options to the current function.
void clear();
@@ -160,9 +95,11 @@ namespace llvm {
static std::set<std::pair<unsigned, unsigned> > intervalNumsToRender;
typedef enum { ExplicitOnly = 0,
- VirtPlusExplicit = 1,
- PhysPlusExplicit = 2,
- All = 3 }
+ AllPhys = 1,
+ VirtNoSpills = 2,
+ VirtSpills = 4,
+ AllVirt = 6,
+ All = 7 }
IntervalTypesToRender;
static unsigned intervalTypesToRender;
@@ -180,6 +117,7 @@ namespace llvm {
MachineFunction *mf;
const TargetRegisterInfo *tri;
LiveIntervals *lis;
+ const RenderMachineFunction *rmf;
mutable bool regClassesTranslatedToCurrentFunction;
mutable RegClassSet regClassSet;
@@ -192,13 +130,81 @@ namespace llvm {
void translateIntervalNumbersToCurrentFunction() const;
};
+ /// \brief Provide extra information about the physical and virtual registers
+ /// in the function being compiled.
+ class TargetRegisterExtraInfo {
+ public:
+ TargetRegisterExtraInfo();
+
+ /// \brief Set up TargetRegisterExtraInfo with pointers to necessary
+ /// sources of information.
+ void setup(MachineFunction *mf, MachineRegisterInfo *mri,
+ const TargetRegisterInfo *tri, LiveIntervals *lis);
+
+ /// \brief Recompute tables for changed function.
+ void reset();
+
+ /// \brief Free all tables in TargetRegisterExtraInfo.
+ void clear();
+
+ /// \brief Maximum number of registers from trc which alias reg.
+ unsigned getWorst(unsigned reg, const TargetRegisterClass *trc) const;
+
+ /// \brief Returns the number of allocable registers in trc.
+ unsigned getCapacity(const TargetRegisterClass *trc) const;
+
+ /// \brief Return the number of registers of class trc that may be
+ /// needed at slot i.
+ unsigned getPressureAtSlot(const TargetRegisterClass *trc,
+ SlotIndex i) const;
+
+ /// \brief Return true if the number of registers of type trc that may be
+ /// needed at slot i is greater than the capacity of trc.
+ bool classOverCapacityAtSlot(const TargetRegisterClass *trc,
+ SlotIndex i) const;
+
+ private:
+
+ MachineFunction *mf;
+ MachineRegisterInfo *mri;
+ const TargetRegisterInfo *tri;
+ LiveIntervals *lis;
+
+ typedef std::map<const TargetRegisterClass*, unsigned> WorstMapLine;
+ typedef std::map<const TargetRegisterClass*, WorstMapLine> VRWorstMap;
+ VRWorstMap vrWorst;
+
+ typedef std::map<unsigned, WorstMapLine> PRWorstMap;
+ PRWorstMap prWorst;
+
+ typedef std::map<const TargetRegisterClass*, unsigned> CapacityMap;
+ CapacityMap capacityMap;
+
+ typedef std::map<const TargetRegisterClass*, unsigned> PressureMapLine;
+ typedef std::map<SlotIndex, PressureMapLine> PressureMap;
+ PressureMap pressureMap;
+
+ bool mapsPopulated;
+
+ /// \brief Initialise the 'worst' table.
+ void initWorst();
+
+ /// \brief Initialise the 'capacity' table.
+ void initCapacity();
+
+ /// \brief Initialise/Reset the 'pressure' and live states tables.
+ void resetPressureAndLiveStates();
+ };
+
/// \brief Render MachineFunction objects and related information to a HTML
/// page.
class RenderMachineFunction : public MachineFunctionPass {
public:
static char ID;
- RenderMachineFunction() : MachineFunctionPass(ID) {}
+ RenderMachineFunction() : MachineFunctionPass(ID) {
+ initializeRenderMachineFunctionPass(*PassRegistry::getPassRegistry());
+ }
virtual void getAnalysisUsage(AnalysisUsage &au) const;
@@ -206,6 +212,13 @@ namespace llvm {
virtual void releaseMemory();
+ void rememberUseDefs(const LiveInterval *li);
+
+ void rememberSpills(const LiveInterval *li,
+ const std::vector<LiveInterval*> &spills);
+
+ bool isSpill(const LiveInterval *li) const;
+
/// \brief Render this machine function to HTML.
///
/// @param renderContextStr This parameter will be included in the top of
@@ -225,10 +238,8 @@ namespace llvm {
private:
class Spacer;
-
friend raw_ostream& operator<<(raw_ostream &os, const Spacer &s);
-
std::string fqn;
MachineFunction *mf;
@@ -241,6 +252,8 @@ namespace llvm {
TargetRegisterExtraInfo trei;
MFRenderingOptions ro;
+
+
// Utilities.
typedef enum { Dead, Defined, Used, AliveReg, AliveStack } LiveState;
LiveState getLiveStateAt(const LiveInterval *li, SlotIndex i) const;
@@ -249,6 +262,17 @@ namespace llvm {
PressureState getPressureStateAt(const TargetRegisterClass *trc,
SlotIndex i) const;
+ typedef std::map<const LiveInterval*, std::set<const LiveInterval*> >
+ SpillIntervals;
+ SpillIntervals spillIntervals;
+
+ typedef std::map<const LiveInterval*, const LiveInterval*> SpillForMap;
+ SpillForMap spillFor;
+
+ typedef std::set<SlotIndex> SlotSet;
+ typedef std::map<const LiveInterval*, SlotSet> UseDefs;
+ UseDefs useDefs;
+
// ---------- Rendering methods ----------
/// For inserting spaces when pretty printing.
generated by cgit v1.1 at 2025-08-25 08:02:41 +0000