LLVM  3.7.0
X86CallingConv.h
Go to the documentation of this file.
1 //=== X86CallingConv.h - X86 Custom Calling Convention Routines -*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file contains the custom routines for the X86 Calling Convention that
11 // aren't done by tablegen.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_X86_X86CALLINGCONV_H
16 #define LLVM_LIB_TARGET_X86_X86CALLINGCONV_H
17 
19 #include "llvm/IR/CallingConv.h"
20 
21 namespace llvm {
22 
23 inline bool CC_X86_32_VectorCallIndirect(unsigned &ValNo, MVT &ValVT,
24  MVT &LocVT,
25  CCValAssign::LocInfo &LocInfo,
26  ISD::ArgFlagsTy &ArgFlags,
27  CCState &State) {
28  // Similar to CCPassIndirect, with the addition of inreg.
29  LocVT = MVT::i32;
30  LocInfo = CCValAssign::Indirect;
31  ArgFlags.setInReg();
32  return false; // Continue the search, but now for i32.
33 }
34 
35 
36 inline bool CC_X86_AnyReg_Error(unsigned &, MVT &, MVT &,
38  CCState &) {
39  llvm_unreachable("The AnyReg calling convention is only supported by the " \
40  "stackmap and patchpoint intrinsics.");
41  // gracefully fallback to X86 C calling convention on Release builds.
42  return false;
43 }
44 
45 } // End llvm namespace
46 
47 #endif
48 
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:98
bool CC_X86_32_VectorCallIndirect(unsigned &ValNo, MVT &ValVT, MVT &LocVT, CCValAssign::LocInfo &LocInfo, ISD::ArgFlagsTy &ArgFlags, CCState &State)
MVT - Machine Value Type.
CCState - This class holds information needed while lowering arguments and return values...
bool CC_X86_AnyReg_Error(unsigned &, MVT &, MVT &, CCValAssign::LocInfo &, ISD::ArgFlagsTy &, CCState &)