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| author | ed <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
|---|---|---|
| committer | ed <ed@FreeBSD.org> | 2009-06-02 17:52:33 +0000 |
| commit | 3277b69d734b9c90b44ebde4ede005717e2c3b2e (patch) | |
| tree | 64ba909838c23261cace781ece27d106134ea451 /include/llvm/CodeGen/IntrinsicLowering.h | |
| download | FreeBSD-src-3277b69d734b9c90b44ebde4ede005717e2c3b2e.zip FreeBSD-src-3277b69d734b9c90b44ebde4ede005717e2c3b2e.tar.gz | |
Import LLVM, at r72732.
Diffstat (limited to 'include/llvm/CodeGen/IntrinsicLowering.h')
| -rw-r--r-- | include/llvm/CodeGen/IntrinsicLowering.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/IntrinsicLowering.h b/include/llvm/CodeGen/IntrinsicLowering.h new file mode 100644 index 0000000..6628329 --- /dev/null +++ b/include/llvm/CodeGen/IntrinsicLowering.h @@ -0,0 +1,50 @@ +//===-- IntrinsicLowering.h - Intrinsic Function Lowering -------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines the IntrinsicLowering interface. This interface allows +// addition of domain-specific or front-end specific intrinsics to LLVM without +// having to modify all of the C backend or interpreter. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CODEGEN_INTRINSICLOWERING_H +#define LLVM_CODEGEN_INTRINSICLOWERING_H + +#include "llvm/Intrinsics.h" + +namespace llvm { + class CallInst; + class Module; + class TargetData; + + class IntrinsicLowering { + const TargetData& TD; + public: + explicit IntrinsicLowering(const TargetData &td) : TD(td) {} + + /// AddPrototypes - This method, if called, causes all of the prototypes + /// that might be needed by an intrinsic lowering implementation to be + /// inserted into the module specified. + void AddPrototypes(Module &M); + + /// LowerIntrinsicCall - This method replaces a call with the LLVM function + /// which should be used to implement the specified intrinsic function call. + /// If an intrinsic function must be implemented by the code generator + /// (such as va_start), this function should print a message and abort. + /// + /// Otherwise, if an intrinsic function call can be lowered, the code to + /// implement it (often a call to a non-intrinsic function) is inserted + /// _after_ the call instruction and the call is deleted. The caller must + /// be capable of handling this kind of change. + /// + void LowerIntrinsicCall(CallInst *CI); + }; +} + +#endif |
