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Commit 81d8ef21 authored by Carlos Alberto Enciso's avatar Carlos Alberto Enciso
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[DebugInfo][Dexter] Incorrect DBG_VALUE after MCP dead copy instruction removal. 

When MachineCopyPropagation eliminates a dead 'copy', its associated debug information becomes invalid. as the recorded register has been removed.  It causes the debugger to display wrong variable value.

Differential Revision: https://reviews.llvm.org/D52614

llvm-svn: 343445
parent ce4caff0
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