llvm-project

c398fa00 - Revert "Reapply "RegisterCoalescer: Add implicit-def of super register when coalescing SUBREG_TO_REG""

Revert "Reapply "RegisterCoalescer: Add implicit-def of super register when coalescing SUBREG_TO_REG"" This reverts commit f4b5be1ecdc85ca4257b739afb8d57e23c7a8030. The above change was breaking the clang-ppc64le-linux-test-suite bot.