63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
//===- AMDGPUGenRegisterBankInfo.def -----------------------------*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
/// \file
|
|
/// This file defines all the static objects used by AMDGPURegisterBankInfo.
|
|
/// \todo This should be generated by TableGen.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_BUILD_GLOBAL_ISEL
|
|
#error "You shouldn't build this"
|
|
#endif
|
|
|
|
namespace llvm {
|
|
namespace AMDGPU {
|
|
|
|
enum PartialMappingIdx {
|
|
None = - 1,
|
|
PM_SGPR32 = 0,
|
|
PM_SGPR64 = 1,
|
|
PM_VGPR32 = 2,
|
|
PM_VGPR64 = 3
|
|
};
|
|
|
|
const RegisterBankInfo::PartialMapping PartMappings[] {
|
|
// StartIdx, Length, RegBank
|
|
{0, 32, SGPRRegBank},
|
|
{0, 64, SGPRRegBank},
|
|
{0, 32, VGPRRegBank},
|
|
{0, 64, VGPRRegBank}
|
|
};
|
|
|
|
const RegisterBankInfo::ValueMapping ValMappings[] {
|
|
// SGPR 32-bit
|
|
{&PartMappings[0], 1},
|
|
// SGPR 64-bit
|
|
{&PartMappings[1], 1},
|
|
// VGPR 32-bit
|
|
{&PartMappings[2], 1},
|
|
// VGPR 64-bit
|
|
{&PartMappings[3], 1}
|
|
};
|
|
|
|
enum ValueMappingIdx {
|
|
SGPRStartIdx = 0,
|
|
VGPRStartIdx = 2
|
|
};
|
|
|
|
const RegisterBankInfo::ValueMapping *getValueMapping(unsigned BankID,
|
|
unsigned Size) {
|
|
assert(Size % 32 == 0);
|
|
unsigned Idx = BankID == AMDGPU::SGPRRegBankID ? SGPRStartIdx : VGPRStartIdx;
|
|
Idx += (Size / 32) - 1;
|
|
return &ValMappings[Idx];
|
|
}
|
|
|
|
} // End AMDGPU namespace.
|
|
} // End llvm namespace.
|