Add new getJITStubForFunction method, which may optionally be implemented by

targets for better performance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10429 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-12-12 07:10:32 +00:00
parent 895be4bae2
commit 459ccab002

View File

@ -111,12 +111,21 @@ public:
/// replaceMachineCodeForFunction - Make it so that calling the
/// function whose machine code is at OLD turns into a call to NEW,
/// perhaps by overwriting OLD with a branch to NEW. FIXME: this is
/// JIT-specific.
/// perhaps by overwriting OLD with a branch to NEW.
///
/// FIXME: this is JIT-specific.
///
virtual void replaceMachineCodeForFunction (void *Old, void *New) {
assert (0 && "Current target cannot replace machine code for functions");
}
/// getJITStubForFunction - Create or return a stub for the specified
/// function. This stub acts just like the specified function, except that it
/// allows the "address" of the function to be taken without having to
/// generate code for it.
virtual void *getJITStubForFunction(Function *F, MachineCodeEmitter &MCE) {
return 0;
}
};
} // End llvm namespace