target/arm: Implement SVE load and broadcast element

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180627043328.11531-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 2d08b7dcd3..93f2942590 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -995,6 +995,47 @@ void HELPER(sve_clr_d)(void *vd, void *vg, uint32_t desc)
     }
 }
 
+/* Copy Zn into Zd, and store zero into inactive elements.  */
+void HELPER(sve_movz_b)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+    intptr_t i, opr_sz = simd_oprsz(desc) / 8;
+    uint64_t *d = vd, *n = vn;
+    uint8_t *pg = vg;
+    for (i = 0; i < opr_sz; i += 1) {
+        d[i] = n[i] & expand_pred_b(pg[H1(i)]);
+    }
+}
+
+void HELPER(sve_movz_h)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+    intptr_t i, opr_sz = simd_oprsz(desc) / 8;
+    uint64_t *d = vd, *n = vn;
+    uint8_t *pg = vg;
+    for (i = 0; i < opr_sz; i += 1) {
+        d[i] = n[i] & expand_pred_h(pg[H1(i)]);
+    }
+}
+
+void HELPER(sve_movz_s)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+    intptr_t i, opr_sz = simd_oprsz(desc) / 8;
+    uint64_t *d = vd, *n = vn;
+    uint8_t *pg = vg;
+    for (i = 0; i < opr_sz; i += 1) {
+        d[i] = n[i] & expand_pred_s(pg[H1(i)]);
+    }
+}
+
+void HELPER(sve_movz_d)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+    intptr_t i, opr_sz = simd_oprsz(desc) / 8;
+    uint64_t *d = vd, *n = vn;
+    uint8_t *pg = vg;
+    for (i = 0; i < opr_sz; i += 1) {
+        d[i] = n[1] & -(uint64_t)(pg[H1(i)] & 1);
+    }
+}
+
 /* Three-operand expander, immediate operand, controlled by a predicate.
  */
 #define DO_ZPZI(NAME, TYPE, H, OP)                              \