Changes in directory llvm/include/llvm/CodeGen:
LiveVariables.h updated: 1.39 -> 1.40
---
Log message:
Data structure change to improve compile time (especially in debug mode).
---
Diffs of the changes: (+10 -14)
LiveVariables.h | 24 ++++++++++--------------
1 files changed, 10 insertions(+), 14 deletions(-)
Index: llvm/include/llvm/CodeGen/LiveVariables.h
diff -u llvm/include/llvm/CodeGen/LiveVariables.h:1.39
llvm/include/llvm/CodeGen/LiveVariables.h:1.40
--- llvm/include/llvm/CodeGen/LiveVariables.h:1.39 Wed Apr 25 02:30:23 2007
+++ llvm/include/llvm/CodeGen/LiveVariables.h Wed Apr 25 14:34:00 2007
@@ -31,12 +31,12 @@
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/SmallVector.h"
#include <map>
namespace llvm {
class MRegisterInfo;
-class BitVector;
class LiveVariables : public MachineFunctionPass {
public:
@@ -127,28 +127,24 @@
// PhysRegInfo - Keep track of which instruction was the last def/use of a
// physical register. This is a purely local property, because all physical
// register references as presumed dead across basic blocks.
- std::vector<MachineInstr*> PhysRegInfo;
+ MachineInstr **PhysRegInfo;
// PhysRegUsed - Keep track whether the physical register has been used after
// its last definition. This is local property.
- BitVector PhysRegUsed;
-
- // PhysRegPartDef - Keep track of a list of instructions which "partially"
- // defined the physical register (e.g. on X86 AX partially defines EAX).
- // These are turned into use/mod/write if there is a use of the register
- // later in the same block. This is local property.
- std::vector<std::vector<MachineInstr*> > PhysRegPartDef;
+ bool *PhysRegUsed;
// PhysRegPartUse - Keep track of which instruction was the last partial use
// of a physical register (e.g. on X86 a def of EAX followed by a use of AX).
// This is a purely local property.
- std::vector<MachineInstr*> PhysRegPartUse;
+ MachineInstr **PhysRegPartUse;
- typedef std::map<const MachineBasicBlock*,
- std::vector<unsigned> > PHIVarInfoMap;
-
- PHIVarInfoMap PHIVarInfo;
+ // PhysRegPartDef - Keep track of a list of instructions which "partially"
+ // defined the physical register (e.g. on X86 AX partially defines EAX).
+ // These are turned into use/mod/write if there is a use of the register
+ // later in the same block. This is local property.
+ SmallVector<MachineInstr*, 4> *PhysRegPartDef;
+ SmallVector<unsigned, 4> *PHIVarInfo;
/// addRegisterKilled - We have determined MI kills a register. Look for the
/// operand that uses it and mark it as IsKill.
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