From: Mateja Marjanovic <mateja.marjano...@rt-rk.com> Optimize and refactor MSA instructions ILVEV.<B|H|W|D>, ILVOD.<B|H|W|D>, ILVL.<B|H|W|D> and ILVR.<B|H|W|D>.
v9: - Tests were changed, instead of iterating through the loop 10 million times and calling the instruction once, iterate through the loop 1 million times, and call the instruction ten times. - Eliminate the hybrid approach in ILVL.<B|H|W|D> and ILVR.<B|H|W|D>, because the performance of directly using TCG registers is much better than the performance of the handler. - Change the tables in the commit messages, due to modified performance testing program. v8: - Rebased onto current master branch. - Inserted Reviewed-by in the applicable commit message. v7: - Use tcg constants, instead of uint64_t constants in ILVEV.<B|H> and ILVOD.<B|H> instructions. - Refactor gen_ilvod_b and gen_ilvod_h functions. Use the shared function gen_ilvod_bh, which has two extra arguments mask and shift, because mask and shift are the only differences in the implementation of those two functions. Same applies for gen_ilvev_b and gen_ilvev_h. - Use assigning uint64_t constant values to the bit mask, instead of shifting the bit mask, in ILVR.<H|W> and ILVL.<H|W> instructions. - Use only one helper for ILVEV.D and ILVR.D instructions, because they are equivalent. Same applies for ILVOD.D and ILVL.D. - Minor changes in the commit messages. v6: - Add ILVL.<B|H|W|D> and ILVR.<B|H|W|D> MSA instructions with mixed approaches (with helpers and with tcg registers). - Test the performance for ILVL.<B|H|W|D> and ILVR.<B|H|W|D> MSA instructions, with helpers, with tcg and with the mixed approach. - Use a tcg register instead of an int variable for storing a constant value of the mask (for logic operations). - Eliminate some unnecessary tcg_gen calls. - Changes in commit messages and the cover letter. v5: - Use tcg_gen_deposit function. - Added performance number for no-deposit and with-deposit cases of ILVEV.W. - Minor changes in commit messages and the cover letter. v4: - Clean up typing errors. - Change the commit message and the cover letter. - Fix bug for ILVEV.D, in case where the destination and one of the sources are the same register. v3: - Reduce the number of logic operations to a minimum. - Add comments. v2: - Minor changes in commit messages and the cover letter. Mateja Marjanovic (6): target/mips: Optimize ILVOD.<B|H|W|D> MSA instructions target/mips: Optimize ILVEV.<B|H|W|D> MSA instructions target/mips: Optimize ILVL.<B|H|W|D> MSA instructions target/mips: Optimize ILVR.<B|H|W|D> MSA instructions target/mips: Merge implementation of ILVEV.D and ILVR.D target/mips: Merge implementation of ILVOD.D and ILVL.D target/mips/helper.h | 4 - target/mips/msa_helper.c | 32 --- target/mips/translate.c | 532 ++++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 528 insertions(+), 40 deletions(-) -- 2.7.4
