[llvm-bugs] [Bug 34096] New: Make "isMatMulOperandAcc" independent of isl representation.
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llvm-bugs at lists.llvm.org
Mon Aug 7 00:37:52 PDT 2017
https://bugs.llvm.org/show_bug.cgi?id=34096
Bug ID: 34096
Summary: Make "isMatMulOperandAcc" independent of isl
representation.
Product: Polly
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Optimizer
Assignee: polly-dev at googlegroups.com
Reporter: cs14btech11001 at iith.ac.in
CC: llvm-bugs at lists.llvm.org
Created attachment 18920
--> https://bugs.llvm.org/attachment.cgi?id=18920&action=edit
(Non-reduced) test-case for matmul recognition in TensorFlow.
The MatMul pattern recognition is quite restrictive. The number of "disjuncts"
in the isl_map containing constraint information is required to be 1 (as per
isl_coalesce - which should ideally produce a domain map with a single
disjunct, but does not under some circumstances) and the number of constraints
on the disjunct is required to be 2.
We should come up with a more efficient implementation of the MatMul
recognition that is independent of this isl representation.
******************
To run test case -
opt matmul.ll -sroa -simplifycfg -loop-rotate -loop-simplify -polly-scops
-polly-delicm -polly-opt-isl -polly-process-unprofitable -polly-use-llvm-names
-pass-remarks-analysis=polly-detect -debug-only=polly-opt-isl,polly-delicm
-polly-delicm-partial-writes
(Will not print "Matrix Multiplication pattern detected")
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