tree a17d4c22125c5bdf58fccdf4b14a662ce7ca1b43
parent 50300450af880da63178ce077a91c8a2a0794a7d
author Jaebaek Seo <jaebaek@google.com> 1596125886 -0400
committer GitHub <noreply@github.com> 1596125886 -0400
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Debug info preservation in loop-unroll pass (#3548)

When we copy the loop body to unroll it, we have to copy its
instructions but DebugDeclare or DebugValue used for the declaration
i.e., DebugValue with Deref must not be copied and only the first block
can contain those instructions.