| //===-- 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 - 13) |
| TB_BCAST_TYPE_SHIFT = TB_ALIGN_SHIFT + 3, |
| TB_BCAST_D = 0 << TB_BCAST_TYPE_SHIFT, |
| TB_BCAST_Q = 1 << TB_BCAST_TYPE_SHIFT, |
| TB_BCAST_SS = 2 << TB_BCAST_TYPE_SHIFT, |
| TB_BCAST_SD = 3 << TB_BCAST_TYPE_SHIFT, |
| TB_BCAST_MASK = 0x3 << TB_BCAST_TYPE_SHIFT, |
| |
| // Unused bits 14-15 |
| }; |
| } // namespace llvm |
| #endif // LLVM_SUPPORT_X86FOLDTABLESUTILS_H |