Add conditional move opcodes - lightning.git - Portable just-in-time compiler library

Add conditional move opcodes

Add jit_movnr(r0, r1, r2) and jit_movzr(r0, r1, r2). jit_movnr() corresponds to the following operation: r0 = r2 ? r1 : r0 jit_movzr() corresponds to the following operation: r0 = r2 ? r0 : r1 Add implementations for x86/x86_64, MIPS, PowerPC, ARM and Aarch64. The x86 implementation uses the CMOV feature, which was added in i686. I don't think anybody will try to run Lightning on anything more ancient, so this should be fine. Otherwise, a simple implementation based on branches can be added later. This could be used as well for architectures that lack conditional moves, like it's currently done on PowerPC for instance. Signed-off-by: Paul Cercueil <paul@crapouillou.net>

Diffstat (limited to 'lib/jit_arm-sz.c')

1 files changed, 2 insertions, 0 deletions