lightning.git - Portable just-in-time compiler library

Implement new bit rotate instructions.

This commit also corrects some previous changes that were not properly tested and were failing to compile or having runtime problems, like using register 0 for addressing in s390. Still need to test on actual s390, as it fails in Hercules, but has the same encoding as shifts. For the moment presume it is a bug in the Hercules emulator. * check/alu_rot.tst, check/alu_rot.ok: New test files for the new lrotr, lroti, rrotr and rroti instructions. * check/Makefile.am, check/lightning.c, include/lightning.h.in, lib/jit_names.c: lib/lightning.c, doc/body.texi: Update for the new instructions. * lib/jit_aarch64-cpu.c, lib/jit_aarch64.c, lib/jit_arm-cpu.c, lib/jit_arm.c: Implement optimized rrotr and rroti. lrotr and lroti just adjust parameters for a left shift rotate. * lib/jit_alpha-cpu.c, lib/jit_alpha.c, lib/jit_ia64-cpu, lib/jit_ia64.c, lib/jit_riscv-cpu.c, lib/jit_riscv.c, jit_sparc-cpu.c, jit_sparc.c: Implement calls to fallback lrotr, lroti, rrotr and rroti. * lib/jit_hppa-cpu.c, lib/jit_hppa.c: Implement optimized rroti. Other instructions use fallbacks. * lib/jit_loongarch-cpu.c, lib/jit_loongarch.c: Implement optimized rrotr and rroti. lrotr and lroti just adapt arguments and use a right shift. * lib/jit_mips-cpu.c, lib/jit_mips.c: If mips2, Implement optimized rrotr and rroti. lrotr and lroti just adapt arguments and use a right shift. If mips1 use fallbacks. * lib/jit_ppc-cpu.c, lib/jit_ppc.c, jit_s390-cpu.c, jit_s390.c, lib/jit_x86-cpu.c, lib/jit_x86.c: Implement optimized lrotr, lroti, rrotr, rroti. * lib/jit_fallback.c: Implement fallbacks for lrotr, lroti, rrotr and rroti. Also add extra macro to avoid segfaults in s390, that cannot use register zero for some addressing instructions.

Diffstat (limited to 'lib/jit_x86.c')

1 files changed, 4 insertions, 0 deletions