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Commit f1925949 authored by Vinay Madhusudan's avatar Vinay Madhusudan Committed by David Green
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[AArch64] Generate dot for v16i8 sum reduction to i32 

Convert VECREDUCE_ADD( EXTEND(v16i8_type) ) to VECREDUCE_ADD( DOTv16i8(v16i8_type) ) whenever the result type is i32. This gains in one of the SPECCPU 2017 benchmark.

This partially solves the bug: https://bugs.llvm.org/show_bug.cgi?id=46888
Meta ticket: https://bugs.llvm.org/show_bug.cgi?id=46929

Differential Revision: https://reviews.llvm.org/D88577
parent db2a646c
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