1 | //===-- X86FoldTablesUtils.h ------------------------------------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #ifndef LLVM_SUPPORT_X86FOLDTABLESUTILS_H |
10 | #define LLVM_SUPPORT_X86FOLDTABLESUTILS_H |
11 | |
12 | namespace llvm { |
13 | enum { |
14 | // Select which memory operand is being unfolded. |
15 | // (stored in bits 0 - 2) |
16 | TB_INDEX_0 = 0, |
17 | TB_INDEX_1 = 1, |
18 | TB_INDEX_2 = 2, |
19 | TB_INDEX_3 = 3, |
20 | TB_INDEX_4 = 4, |
21 | TB_INDEX_MASK = 0x7, |
22 | |
23 | // Do not insert the reverse map (MemOp -> RegOp) into the table. |
24 | // This may be needed because there is a many -> one mapping. |
25 | TB_NO_REVERSE = 1 << 3, |
26 | |
27 | // Do not insert the forward map (RegOp -> MemOp) into the table. |
28 | // This is needed for Native Client, which prohibits branch |
29 | // instructions from using a memory operand. |
30 | TB_NO_FORWARD = 1 << 4, |
31 | |
32 | TB_FOLDED_LOAD = 1 << 5, |
33 | TB_FOLDED_STORE = 1 << 6, |
34 | |
35 | // Minimum alignment required for load/store. |
36 | // Used for RegOp->MemOp conversion. Encoded as Log2(Align) |
37 | // (stored in bits 8 - 10) |
38 | TB_ALIGN_SHIFT = 7, |
39 | TB_ALIGN_1 = 0 << TB_ALIGN_SHIFT, |
40 | TB_ALIGN_16 = 4 << TB_ALIGN_SHIFT, |
41 | TB_ALIGN_32 = 5 << TB_ALIGN_SHIFT, |
42 | TB_ALIGN_64 = 6 << TB_ALIGN_SHIFT, |
43 | TB_ALIGN_MASK = 0x7 << TB_ALIGN_SHIFT, |
44 | |
45 | // Broadcast type. |
46 | // (stored in bits 11 - 13) |
47 | TB_BCAST_TYPE_SHIFT = TB_ALIGN_SHIFT + 3, |
48 | TB_BCAST_W = 1 << TB_BCAST_TYPE_SHIFT, |
49 | TB_BCAST_D = 2 << TB_BCAST_TYPE_SHIFT, |
50 | TB_BCAST_Q = 3 << TB_BCAST_TYPE_SHIFT, |
51 | TB_BCAST_SS = 4 << TB_BCAST_TYPE_SHIFT, |
52 | TB_BCAST_SD = 5 << TB_BCAST_TYPE_SHIFT, |
53 | TB_BCAST_SH = 6 << TB_BCAST_TYPE_SHIFT, |
54 | TB_BCAST_MASK = 0x7 << TB_BCAST_TYPE_SHIFT, |
55 | |
56 | // Unused bits 14-16 |
57 | }; |
58 | } // namespace llvm |
59 | #endif // LLVM_SUPPORT_X86FOLDTABLESUTILS_H |
60 | |