On 29/06/2019 14:00, Richard Henderson wrote: > Changes since v5: > * Disable runtime altivec detection until all of the required > opcodes are implemented. > Because dup2 was last, that really means all of the pure altivec > bits, so the initial patches are not bisectable in any meaningful > sense. I thought about reshuffling dup2 earlier, but that created > too many conflicts and I was too lazy. > * Rearranged the patches a little bit to make sure that each > one actually builds, which was not the case before. > * Folded in the fix to tcg_out_mem_long, as discussed in the > followup within the v4 thread. > > Changes since v4: > * Patch 1, "tcg/ppc: Introduce Altivec registers", is divided into > ten smaller patches. > * The net result (code-wise) is not changed between former patch 1 > and ten new patches. > * Remaining (2-7) patches from v4 are applied verbatim. > * This means that code-wise v5 and v4 do not differ. > * v5 is devised to help debugging, and to better organize the code. > > Changes since v3: > * Add support for bitsel, with the vsx xxsel insn. > * Rely on the new relocation overflow handling, so > we don't require 3 insns for a vector load. > > Changes since v2: > * Several generic tcg patches to improve dup vs dupi vs dupm. > In particular, if a global temp (like guest r10) is not in > a host register, we should duplicate from memory instead of > loading to an integer register, spilling to stack, loading > to a vector register, and then duplicating. > * I have more confidence that 32-bit ppc host should work > this time around. No testing on that front yet, but I've > unified some code sequences with 64-bit ppc host. > * Base altivec now supports V128 only. Moved V64 support to > Power7 (v2.06), which has 64-bit load/store. > * Dropped support for 64-bit vector multiply using Power8. > The expansion was too large compared to using integer regs. > > Richard Henderson (16): > tcg/ppc: Introduce Altivec registers > tcg/ppc: Introduce macro VX4() > tcg/ppc: Introduce macros VRT(), VRA(), VRB(), VRC() > tcg/ppc: Enable tcg backend vector compilation > tcg/ppc: Add support for load/store/logic/comparison > tcg/ppc: Add support for vector maximum/minimum > tcg/ppc: Add support for vector add/subtract > tcg/ppc: Add support for vector saturated add/subtract > tcg/ppc: Prepare case for vector multiply > tcg/ppc: Support vector shift by immediate > tcg/ppc: Support vector multiply > tcg/ppc: Support vector dup2 > tcg/ppc: Enable Altivec detection > tcg/ppc: Update vector support to v2.06 > tcg/ppc: Update vector support to v2.07 > tcg/ppc: Update vector support to v3.00 > > tcg/ppc/tcg-target.h | 39 +- > tcg/ppc/tcg-target.opc.h | 13 + > tcg/ppc/tcg-target.inc.c | 1091 +++++++++++++++++++++++++++++++++++--- > 3 files changed, 1076 insertions(+), 67 deletions(-) > create mode 100644 tcg/ppc/tcg-target.opc.h
I don't have space for a full set of images on the G4, however I've tried boot tests on installer CDs for MacOS 9, OS X 10.2, Linux and HelenOS and it looks good here. Tested-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> [PPC32] ATB, Mark.
