6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-13 09:33:50 +00:00
Code Issues Projects Releases Wiki Activity

All targets are now allowed to have their own MachineFunctionInfo objects,

Browse Source 
also, make getInfo do some checking and cast to the appropriate concrete type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15903 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-08-18 18:13:16 +00:00
parent b406d84dd8
commit 8bdf87d1d8
1 changed files with 24 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
include/llvm/CodeGen/MachineFunction.h
View File

@ -23,6 +23,12 @@
namespace llvm {
class Function;
class TargetMachine;
class SSARegMap;
class MachineFrameInfo;
class MachineConstantPool;
// ilist_traits
template <>
class ilist_traits<MachineBasicBlock> {
@ -58,15 +64,13 @@ public:
ilist_iterator<MachineBasicBlock> last);
};
class Function;
class TargetMachine;
class SSARegMap;
class MachineFrameInfo;
class MachineConstantPool;
// MachineFunctionInfoBase - This is a gross SparcV9 hack
struct MachineFunctionInfoBase { virtual ~MachineFunctionInfoBase() {}; };
class MachineFunctionInfo;
/// MachineFunctionInfo - This class can be derived from and used by targets to
/// hold private target-specific information for each MachineFunction. Objects
/// of type are accessed/created with MF::getInfo and destroyed when the
/// MachineFunction is destroyed.
struct MachineFunctionInfo {
virtual ~MachineFunctionInfo() {};
};
class MachineFunction : private Annotation {
const Function *Fn;
@ -78,8 +82,9 @@ class MachineFunction : private Annotation {
// Keeping track of mapping from SSA values to registers
SSARegMap *SSARegMapping;
// Used to keep track of frame and constant area information for SparcV9 BE.
mutable MachineFunctionInfoBase *MFInfo;
// Used to keep track of target-specific per-machine function information for
// the target implementation.
MachineFunctionInfo *MFInfo;
// Keep track of objects allocated on the stack.
MachineFrameInfo *FrameInfo;
@ -124,7 +129,14 @@ public:
/// MachineFunctionInfo - Keep track of various per-function pieces of
/// information for the sparc backend.
///
MachineFunctionInfo *getInfo() const;
template<typename Ty>
Ty *getInfo() {
if (!MFInfo) MFInfo = new Ty(*this);
assert((void*)dynamic_cast<Ty*>(MFInfo) == (void*)MFInfo &&
"Invalid concrete type or multiple inheritence for getInfo");
return static_cast<Ty*>(MFInfo);
}
/// getBlockNumbered - MachineBasicBlocks are automatically numbered when they
/// are inserted into the machine function. The block number for a machine