jrtc27 added a comment. `echo '.balign 4; .byte 0; .balign 4; auipc a0, 0' | llvm-mc -triple=riscv64 -filetype=obj` with or without +c works as a test case for me... CHANGES SINCE LAST ACTION https://reviews.llvm.org/D132482/new/ https://reviews.llvm.org/D132482