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annotate llvm/docs/AMDGPU/gfx9_imask.rst @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children 2e18cbf3894f
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1 ..
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2 **************************************************
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3 * *
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4 * Automatically generated file, do not edit! *
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5 * *
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6 **************************************************
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7
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8 .. _amdgpu_synid9_imask:
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9
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10 imask
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11 ===========================
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12
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13 This operand is a mask which controls indexing mode for operands of subsequent instructions.
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14 Bits 0, 1 and 2 control indexing of *src0*, *src1* and *src2*, while bit 3 controls indexing of *dst*.
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15 Value 1 enables indexing and value 0 disables it.
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16
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17 ===== ========================================
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18 Bit Meaning
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19 ===== ========================================
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20 0 Enables or disables *src0* indexing.
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21 1 Enables or disables *src1* indexing.
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22 2 Enables or disables *src2* indexing.
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23 3 Enables or disables *dst* indexing.
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24 ===== ========================================
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25
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26 This operand may be specified as one of the following:
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27
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28 * An :ref:`integer_number<amdgpu_synid_integer_number>` or an :ref:`absolute_expression<amdgpu_synid_absolute_expression>`. The value must be in the range 0..15.
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29 * A *gpr_idx* value described below.
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30
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31 ==================================== ===========================================
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32 Gpr_idx Value Syntax Description
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33 ==================================== ===========================================
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34 gpr_idx(*<operands>*) Enable indexing for specified *operands*
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35 and disable it for the rest.
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36 *Operands* is a comma-separated list of
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37 values which may include:
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38
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39 * "SRC0" - enable *src0* indexing.
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40
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41 * "SRC1" - enable *src1* indexing.
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42
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43 * "SRC2" - enable *src2* indexing.
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44
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45 * "DST" - enable *dst* indexing.
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46
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47 Each of these values may be specified only
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48 once.
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49
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50 *Operands* list may be empty; this syntax
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51 disables indexing for all operands.
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52 ==================================== ===========================================
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53
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54 Examples:
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55
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56 .. parsed-literal::
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57
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58 s_set_gpr_idx_mode 0
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59 s_set_gpr_idx_mode gpr_idx() // the same as above
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60
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61 s_set_gpr_idx_mode 15
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62 s_set_gpr_idx_mode gpr_idx(DST,SRC0,SRC1,SRC2) // the same as above
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63 s_set_gpr_idx_mode gpr_idx(SRC0,SRC1,SRC2,DST) // the same as above
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64
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65 s_set_gpr_idx_mode gpr_idx(DST,SRC1)
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66