6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-14 14:24:05 +00:00
Code Issues Projects Releases Wiki Activity

Move the GraphTraits for MachineBasicBlocks to the MachineBasicBlock file.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13299 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-05-01 21:05:34 +00:00
parent a19a3db446
commit 0aef12a7a9
2 changed files with 70 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
include/llvm/CodeGen/MachineBasicBlock.h
View File

@ -15,6 +15,7 @@
#define LLVM_CODEGEN_MACHINEBASICBLOCK_H
#include "llvm/CodeGen/MachineInstr.h"
#include "Support/GraphTraits.h"
#include "Support/ilist"
#include <iosfwd>
@ -197,6 +198,75 @@ private: // Methods used to maintain doubly linked list of blocks...
}
};
//===--------------------------------------------------------------------===//
// GraphTraits specializations for machine basic block graphs (machine-CFGs)
//===--------------------------------------------------------------------===//
// Provide specializations of GraphTraits to be able to treat a
// MachineFunction as a graph of MachineBasicBlocks...
//
template <> struct GraphTraits<MachineBasicBlock *> {
typedef MachineBasicBlock NodeType;
typedef MachineBasicBlock::succ_iterator ChildIteratorType;
static NodeType *getEntryNode(MachineBasicBlock *BB) { return BB; }
static inline ChildIteratorType child_begin(NodeType *N) {
return N->succ_begin();
}
static inline ChildIteratorType child_end(NodeType *N) {
return N->succ_end();
}
};
template <> struct GraphTraits<const MachineBasicBlock *> {
typedef const MachineBasicBlock NodeType;
typedef MachineBasicBlock::const_succ_iterator ChildIteratorType;
static NodeType *getEntryNode(const MachineBasicBlock *BB) { return BB; }
static inline ChildIteratorType child_begin(NodeType *N) {
return N->succ_begin();
}
static inline ChildIteratorType child_end(NodeType *N) {
return N->succ_end();
}
};
// Provide specializations of GraphTraits to be able to treat a
// MachineFunction as a graph of MachineBasicBlocks... and to walk it
// in inverse order. Inverse order for a function is considered
// to be when traversing the predecessor edges of a MBB
// instead of the successor edges.
//
template <> struct GraphTraits<Inverse<MachineBasicBlock*> > {
typedef MachineBasicBlock NodeType;
typedef MachineBasicBlock::pred_iterator ChildIteratorType;
static NodeType *getEntryNode(Inverse<MachineBasicBlock *> G) {
return G.Graph;
}
static inline ChildIteratorType child_begin(NodeType *N) {
return N->pred_begin();
}
static inline ChildIteratorType child_end(NodeType *N) {
return N->pred_end();
}
};
template <> struct GraphTraits<Inverse<const MachineBasicBlock*> > {
typedef const MachineBasicBlock NodeType;
typedef MachineBasicBlock::const_pred_iterator ChildIteratorType;
static NodeType *getEntryNode(Inverse<const MachineBasicBlock*> G) {
return G.Graph;
}
static inline ChildIteratorType child_begin(NodeType *N) {
return N->pred_begin();
}
static inline ChildIteratorType child_end(NodeType *N) {
return N->pred_end();
}
};
} // End llvm namespace
#endif