mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
//===-- llvm/CallingConv.h - LLVM Calling Conventions -----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines LLVM's set of calling conventions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CALLINGCONV_H
|
|
#define LLVM_CALLINGCONV_H
|
|
|
|
namespace llvm {
|
|
|
|
/// CallingConv Namespace - This namespace contains an enum with a value for
|
|
/// the well-known calling conventions.
|
|
///
|
|
namespace CallingConv {
|
|
/// A set of enums which specify the assigned numeric values for known llvm
|
|
/// calling conventions.
|
|
/// @brief LLVM Calling Convention Representation
|
|
enum ID {
|
|
/// C - The default llvm calling convention, compatible with C. This
|
|
/// convention is the only calling convention that supports varargs calls.
|
|
/// As with typical C calling conventions, the callee/caller have to
|
|
/// tolerate certain amounts of prototype mismatch.
|
|
C = 0,
|
|
|
|
// Generic LLVM calling conventions. None of these calling conventions
|
|
// support varargs calls, and all assume that the caller and callee
|
|
// prototype exactly match.
|
|
|
|
/// Fast - This calling convention attempts to make calls as fast as
|
|
/// possible /// (e.g. by passing things in registers).
|
|
Fast = 8,
|
|
|
|
// Cold - This calling convention attempts to make code in the caller as
|
|
// efficient as possible under the assumption that the call is not commonly
|
|
// executed. As such, these calls often preserve all registers so that the
|
|
// call does not break any live ranges in the caller side.
|
|
Cold = 9,
|
|
|
|
// Target - This is the start of the target-specific calling conventions,
|
|
// e.g. fastcall and thiscall on X86.
|
|
FirstTargetCC = 64,
|
|
|
|
/// X86_StdCall - stdcall is the calling conventions mostly used by the
|
|
/// Win32 API. It is basically the same as the C convention with the
|
|
/// difference in that the callee is responsible for popping the arguments
|
|
/// from the stack.
|
|
X86_StdCall = 64,
|
|
|
|
/// X86_FastCall - 'fast' analog of X86_StdCall. Passes first two arguments
|
|
/// in ECX:EDX registers, others - via stack. Callee is responsible for
|
|
/// stack cleaning.
|
|
X86_FastCall = 65
|
|
};
|
|
} // End CallingConv namespace
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|