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