tree 1e72ebabb9e07e334b39dc51d642652ef4d3a050
parent 500cccca0cbcbb547e2a54b25162f20808b45af0
author Simon Pilgrim <llvm-dev@redking.me.uk> 1745407827 +0100
committer GitHub <noreply@github.com> 1745407827 +0100
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[DAG] shouldReduceLoadWidth - add optional<unsigned> byte offset argument (#136723)

Based off feedback for #129695 - we need to be able to determine the
load offset of smaller loads when trying to determine whether a multiple
use load should be split (in particular for AVX subvector extractions).

This patch adds a std::optional<unsigned> ByteOffset argument to
shouldReduceLoadWidth calls for where we know the constant offset to
allow targets to make use of it in future patches.