836703087d
`BranchFolder::TryTailMergeBlocks(...)` removes unconditional branch instructions and then recreates them. However, this process loses debug source location information from the previous branch instruction, even if tail merging doesn't change IR. This patch preserves the debug information from the removed instruction and inserts them into the recreated instruction. Fixes #94050
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'.