jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
tcg/i386: Support vector absolute value
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
+16
-1
+1
-1
tcg/i386/tcg-target.h
+1
-1
tcg/i386/tcg-target.h
···
182
182
#define TCG_TARGET_HAS_orc_vec 0
183
183
#define TCG_TARGET_HAS_not_vec 0
184
184
#define TCG_TARGET_HAS_neg_vec 0
185
-
#define TCG_TARGET_HAS_abs_vec 0
185
+
#define TCG_TARGET_HAS_abs_vec 1
186
186
#define TCG_TARGET_HAS_shi_vec 1
187
187
#define TCG_TARGET_HAS_shs_vec 1
188
188
#define TCG_TARGET_HAS_shv_vec have_avx2
+15
tcg/i386/tcg-target.inc.c
+15
tcg/i386/tcg-target.inc.c
···
369
369
#define OPC_MOVSLQ (0x63 | P_REXW)
370
370
#define OPC_MOVZBL (0xb6 | P_EXT)
371
371
#define OPC_MOVZWL (0xb7 | P_EXT)
372
+
#define OPC_PABSB (0x1c | P_EXT38 | P_DATA16)
373
+
#define OPC_PABSW (0x1d | P_EXT38 | P_DATA16)
374
+
#define OPC_PABSD (0x1e | P_EXT38 | P_DATA16)
372
375
#define OPC_PACKSSDW (0x6b | P_EXT | P_DATA16)
373
376
#define OPC_PACKSSWB (0x63 | P_EXT | P_DATA16)
374
377
#define OPC_PACKUSDW (0x2b | P_EXT38 | P_DATA16)
···
2741
2744
static int const sars_insn[4] = {
2742
2745
OPC_UD2, OPC_PSRAW, OPC_PSRAD, OPC_UD2
2743
2746
};
2747
+
static int const abs_insn[4] = {
2748
+
/* TODO: AVX512 adds support for MO_64. */
2749
+
OPC_PABSB, OPC_PABSW, OPC_PABSD, OPC_UD2
2750
+
};
2744
2751
2745
2752
TCGType type = vecl + TCG_TYPE_V64;
2746
2753
int insn, sub;
···
2829
2836
insn = OPC_PUNPCKLDQ;
2830
2837
goto gen_simd;
2831
2838
#endif
2839
+
case INDEX_op_abs_vec:
2840
+
insn = abs_insn[vece];
2841
+
a2 = a1;
2842
+
a1 = 0;
2843
+
goto gen_simd;
2832
2844
gen_simd:
2833
2845
tcg_debug_assert(insn != OPC_UD2);
2834
2846
if (type == TCG_TYPE_V256) {
···
3206
3218
case INDEX_op_dup2_vec:
3207
3219
#endif
3208
3220
return &x_x_x;
3221
+
case INDEX_op_abs_vec:
3209
3222
case INDEX_op_dup_vec:
3210
3223
case INDEX_op_shli_vec:
3211
3224
case INDEX_op_shri_vec:
···
3283
3296
case INDEX_op_umin_vec:
3284
3297
case INDEX_op_umax_vec:
3285
3298
return vece <= MO_32 ? 1 : -1;
3299
+
case INDEX_op_abs_vec:
3300
+
return vece <= MO_32;
3286
3301
3287
3302
default:
3288
3303
return 0;