benshi001 added a comment. On 32-bit / 64-bit machines, a function returning lower types (via a register) should an explicit sign/zero extension to full fill the register.
But on AVR, a 8-bit register is used to return 8-bit values, so the sign/zero extension is unnecessary, and lead to extra useless assembly. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D139908/new/ https://reviews.llvm.org/D139908 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
