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//===-- X86FoldTablesUtils.h ------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_X86FOLDTABLESUTILS_H
#define LLVM_SUPPORT_X86FOLDTABLESUTILS_H
namespace llvm {
enum {
// Select which memory operand is being unfolded.
// (stored in bits 0 - 2)
TB_INDEX_0 = 0,
TB_INDEX_1 = 1,
TB_INDEX_2 = 2,
TB_INDEX_3 = 3,
TB_INDEX_4 = 4,
TB_INDEX_MASK = 0x7,
// Do not insert the reverse map (MemOp -> RegOp) into the table.
// This may be needed because there is a many -> one mapping.
TB_NO_REVERSE = 1 << 3,
// Do not insert the forward map (RegOp -> MemOp) into the table.
// This is needed for Native Client, which prohibits branch
// instructions from using a memory operand.
TB_NO_FORWARD = 1 << 4,
TB_FOLDED_LOAD = 1 << 5,
TB_FOLDED_STORE = 1 << 6,
TB_FOLDED_BCAST = 1 << 7,
// Minimum alignment required for load/store.
// Used for RegOp->MemOp conversion. Encoded as Log2(Align)
// (stored in bits 9 - 11)
TB_ALIGN_SHIFT = 8,
TB_ALIGN_1 = 0 << TB_ALIGN_SHIFT,
TB_ALIGN_16 = 4 << TB_ALIGN_SHIFT,
TB_ALIGN_32 = 5 << TB_ALIGN_SHIFT,
TB_ALIGN_64 = 6 << TB_ALIGN_SHIFT,
TB_ALIGN_MASK = 0x7 << TB_ALIGN_SHIFT,
// Broadcast type.
// (stored in bits 12 - 14)
TB_BCAST_TYPE_SHIFT = TB_ALIGN_SHIFT + 3,
TB_BCAST_W = 0 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_D = 1 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_Q = 2 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_SS = 3 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_SD = 4 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_SH = 5 << TB_BCAST_TYPE_SHIFT,
TB_BCAST_MASK = 0x7 << TB_BCAST_TYPE_SHIFT,
// Unused bits 15-16
};
} // namespace llvm
#endif // LLVM_SUPPORT_X86FOLDTABLESUTILS_H
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