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Summary of changes: - added description of GFX10; - added description of operands sccz, vccz, lds_direct, etc; - minor bugfixing and improvements. llvm-svn: 365347
57 lines
2.4 KiB
ReStructuredText
57 lines
2.4 KiB
ReStructuredText
..
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**************************************************
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* *
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* Automatically generated file, do not edit! *
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* *
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**************************************************
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.. _amdgpu_synid10_waitcnt:
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waitcnt
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===========================
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Counts of outstanding instructions to wait for.
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The bits of this operand have the following meaning:
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============ ======================================================
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Bits Description
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============ ======================================================
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3:0 VM_CNT: vector memory operations count, lower bits.
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6:4 EXP_CNT: export count.
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11:8 LGKM_CNT: LDS, GDS, Constant and Message count.
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15:14 VM_CNT: vector memory operations count, upper bits.
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============ ======================================================
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This operand may be specified as a positive 16-bit :ref:`integer_number<amdgpu_synid_integer_number>`
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or as a combination of the following symbolic helpers:
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====================== ======================================================================
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Syntax Description
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====================== ======================================================================
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vmcnt(<*N*>) VM_CNT value. *N* must not exceed the largest VM_CNT value.
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expcnt(<*N*>) EXP_CNT value. *N* must not exceed the largest EXP_CNT value.
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lgkmcnt(<*N*>) LGKM_CNT value. *N* must not exceed the largest LGKM_CNT value.
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vmcnt_sat(<*N*>) VM_CNT value computed as min(*N*, the largest VM_CNT value).
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expcnt_sat(<*N*>) EXP_CNT value computed as min(*N*, the largest EXP_CNT value).
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lgkmcnt_sat(<*N*>) LGKM_CNT value computed as min(*N*, the largest LGKM_CNT value).
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====================== ======================================================================
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These helpers may be specified in any order. Ampersands and commas may be used as optional separators.
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*N* is either an
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:ref:`integer number<amdgpu_synid_integer_number>` or an
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:ref:`absolute expression<amdgpu_synid_absolute_expression>`.
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Examples:
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.. parsed-literal::
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s_waitcnt 0
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s_waitcnt vmcnt(1)
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s_waitcnt expcnt(2) lgkmcnt(3)
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s_waitcnt vmcnt(1) expcnt(2) lgkmcnt(3)
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s_waitcnt vmcnt(1), expcnt(2), lgkmcnt(3)
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s_waitcnt vmcnt(1) & lgkmcnt_sat(100) & expcnt(2)
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