- Add target id support (https://clang.llvm.org/docs/ClangOffloadBundler.html#target-id) - Add code object v4 support (https://llvm.org/docs/AMDGPUUsage.html#elf-code-object) - Add kernarg_size to kernel descriptor - Change trap handler ABI to no longer move queue pointer into s[0:1] - Cleanup ELF definitions - Add V2, V3, V4 suffixes to make a clear distinction for code object version - Consolidate note names Differential Revision: https://reviews.llvm.org/D95638