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| author | Richard Henderson | 2017-11-17 20:47:42 +0100 |
|---|---|---|
| committer | Richard Henderson | 2018-02-08 16:54:05 +0100 |
| commit | 212be173f01e85e6589fd76676827953a84a732b (patch) | |
| tree | fc93bba42036540e69854d3cec47a39db25bf431 /accel/tcg/tcg-runtime-gvec.c | |
| parent | tcg: Add generic vector ops for constant shifts (diff) | |
| download | qemu-212be173f01e85e6589fd76676827953a84a732b.tar.gz qemu-212be173f01e85e6589fd76676827953a84a732b.tar.xz qemu-212be173f01e85e6589fd76676827953a84a732b.zip | |
tcg: Add generic vector ops for comparisons
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/tcg/tcg-runtime-gvec.c')
| -rw-r--r-- | accel/tcg/tcg-runtime-gvec.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/accel/tcg/tcg-runtime-gvec.c b/accel/tcg/tcg-runtime-gvec.c index f0964aadb2..f2b0cba4a2 100644 --- a/accel/tcg/tcg-runtime-gvec.c +++ b/accel/tcg/tcg-runtime-gvec.c @@ -467,3 +467,39 @@ void HELPER(gvec_sar64i)(void *d, void *a, uint32_t desc) } clear_high(d, oprsz, desc); } + +/* If vectors are enabled, the compiler fills in -1 for true. + Otherwise, we must take care of this by hand. */ +#ifdef CONFIG_VECTOR16 +# define DO_CMP0(X) X +#else +# define DO_CMP0(X) -(X) +#endif + +#define DO_CMP1(NAME, TYPE, OP) \ +void HELPER(NAME)(void *d, void *a, void *b, uint32_t desc) \ +{ \ + intptr_t oprsz = simd_oprsz(desc); \ + intptr_t i; \ + for (i = 0; i < oprsz; i += sizeof(vec64)) { \ + *(TYPE *)(d + i) = DO_CMP0(*(TYPE *)(a + i) OP *(TYPE *)(b + i)); \ + } \ + clear_high(d, oprsz, desc); \ +} + +#define DO_CMP2(SZ) \ + DO_CMP1(gvec_eq##SZ, vec##SZ, ==) \ + DO_CMP1(gvec_ne##SZ, vec##SZ, !=) \ + DO_CMP1(gvec_lt##SZ, svec##SZ, <) \ + DO_CMP1(gvec_le##SZ, svec##SZ, <=) \ + DO_CMP1(gvec_ltu##SZ, vec##SZ, <) \ + DO_CMP1(gvec_leu##SZ, vec##SZ, <=) + +DO_CMP2(8) +DO_CMP2(16) +DO_CMP2(32) +DO_CMP2(64) + +#undef DO_CMP0 +#undef DO_CMP1 +#undef DO_CMP2 |