target/arm: Convert integer multiply (indexed) to gvec for aa64 advsimd

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200815013145.539409-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target/arm/helper.h b/target/arm/helper.h
index 759639a63a22ff7013817b6f92386f3de0213327..d0573a53c80fdfe4972d1631793886858b10bd0e 100644 (file)
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -758,6 +758,10 @@ DEF_HELPER_FLAGS_4(gvec_uaba_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(gvec_uaba_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(gvec_uaba_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 
+DEF_HELPER_FLAGS_4(gvec_mul_idx_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_mul_idx_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_mul_idx_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
 #ifdef TARGET_AARCH64
 #include "helper-a64.h"
 #include "helper-sve.h"

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 115dc946e759a8fdc4be715e3041a79d7f73cf38..abbd6421a2814c546a662a2ec13b65422e9f7704 100644 (file)
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -13488,6 +13488,22 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
                                data, gen_helper_gvec_fmlal_idx_a64);
         }
         return;
+
+    case 0x08: /* MUL */
+        if (!is_long && !is_scalar) {
+            static gen_helper_gvec_3 * const fns[3] = {
+                gen_helper_gvec_mul_idx_h,
+                gen_helper_gvec_mul_idx_s,
+                gen_helper_gvec_mul_idx_d,
+            };
+            tcg_gen_gvec_3_ool(vec_full_reg_offset(s, rd),
+                               vec_full_reg_offset(s, rn),
+                               vec_full_reg_offset(s, rm),
+                               is_q ? 16 : 8, vec_full_reg_size(s),
+                               index, fns[size - 1]);
+            return;
+        }
+        break;
     }
 
     if (size == 3) {

diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 9f10be03ed7fb9e30f4a07fcc3c9e0d25b9a0fbd..155b6368cb33f61a16bb9848729fdd96f4fceb02 100644 (file)
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -711,6 +711,27 @@ DO_3OP(gvec_rsqrts_d, helper_rsqrtsf_f64, float64)
  */
 
 #define DO_MUL_IDX(NAME, TYPE, H) \
+void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \
+{                                                                          \
+    intptr_t i, j, oprsz = simd_oprsz(desc), segment = 16 / sizeof(TYPE);  \
+    intptr_t idx = simd_data(desc);                                        \
+    TYPE *d = vd, *n = vn, *m = vm;                                        \
+    for (i = 0; i < oprsz / sizeof(TYPE); i += segment) {                  \
+        TYPE mm = m[H(i + idx)];                                           \
+        for (j = 0; j < segment; j++) {                                    \
+            d[i + j] = n[i + j] * mm;                                      \
+        }                                                                  \
+    }                                                                      \
+    clear_tail(d, oprsz, simd_maxsz(desc));                                \
+}
+
+DO_MUL_IDX(gvec_mul_idx_h, uint16_t, H2)
+DO_MUL_IDX(gvec_mul_idx_s, uint32_t, H4)
+DO_MUL_IDX(gvec_mul_idx_d, uint64_t, )
+
+#undef DO_MUL_IDX
+
+#define DO_FMUL_IDX(NAME, TYPE, H) \
 void HELPER(NAME)(void *vd, void *vn, void *vm, void *stat, uint32_t desc) \
 {                                                                          \
     intptr_t i, j, oprsz = simd_oprsz(desc), segment = 16 / sizeof(TYPE);  \
@@ -725,11 +746,11 @@ void HELPER(NAME)(void *vd, void *vn, void *vm, void *stat, uint32_t desc) \
     clear_tail(d, oprsz, simd_maxsz(desc));                                \
 }
 
-DO_MUL_IDX(gvec_fmul_idx_h, float16, H2)
-DO_MUL_IDX(gvec_fmul_idx_s, float32, H4)
-DO_MUL_IDX(gvec_fmul_idx_d, float64, )
+DO_FMUL_IDX(gvec_fmul_idx_h, float16, H2)
+DO_FMUL_IDX(gvec_fmul_idx_s, float32, H4)
+DO_FMUL_IDX(gvec_fmul_idx_d, float64, )
 
-#undef DO_MUL_IDX
+#undef DO_FMUL_IDX
 
 #define DO_FMLA_IDX(NAME, TYPE, H)                                         \
 void HELPER(NAME)(void *vd, void *vn, void *vm, void *va,                  \