'[llvm-dev] [SelectionDAGBuilder] AAInfo and lowering a target memory intrinsic'

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List:       llvm-dev
Subject:    [llvm-dev] [SelectionDAGBuilder] AAInfo and lowering a target memory intrinsic
From:       Sumanth Gundapaneni via llvm-dev <llvm-dev () lists ! llvm ! org>
Date:       2018-08-29 20:42:47
Message-ID: 042501d43fd8$d92937f0$8b7ba7d0$ () codeaurora ! org
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Hi,

    I noticed while lowering a call of a target memory intrinsic to an
INTRINSIC node, we ignore the AAInfo (metadata).

Please refer to the function SelectionDAGBuilder::visitTargetIntrinsic().
While constructing the DAG Node, the IntrinsicInfo object does not hold any
alias information metadata and so we ignore the information. Is there any
specific reason why we do this ?

I have a SelectionDAG in software pipeliner and I am looking to use this
AAInfo to determine loop carried dependences.

Any pointers will be highly appreciated ?

--Sumanth

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vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p \
class=MsoNormal>&nbsp;&nbsp;&nbsp; I noticed while lowering a call of a target memory \
intrinsic to an INTRINSIC node, we ignore the AAInfo (metadata).<o:p></o:p></p><p \
class=MsoNormal>Please refer to the function \
SelectionDAGBuilder::visitTargetIntrinsic(). &nbsp;While constructing the DAG Node, \
the IntrinsicInfo object does not hold any alias information metadata and so we \
ignore the information. Is there any specific reason why we do this \
?<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal>I have a \
SelectionDAG in software pipeliner and I am looking to use this AAInfo to determine \
loop carried dependences.<o:p></o:p></p><p class=MsoNormal>Any pointers will be \
highly appreciated ?<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p \
class=MsoNormal>--Sumanth<o:p></o:p></p></div></body></html>

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