5d2e2847e0
llvm/llvm-project@9e436c2daa tries to handle register masks and sub-registers, it avoids clobbering RegUnit presreved by regmask. But it then introduces invalid pointer issues. We delete the copies without invalidate all the use in the CopyInfo, so we dereferenced invalid pointers in next interation, causing asserts. Fixes: #126107 --------- Co-authored-by: Matt Arsenault <arsenm2@gmail.com>
This directory contains tests for the MIR file format parser and printer. It was necessary to split the tests across different targets as no single target covers all features available in machine IR. Tests for codegen passes should NOT be here but in test/CodeGen/sometarget. As a rule of thumb this directory should only contain tests using 'llc -run-pass none'.