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-rw-r--r--target/arm/helper-sve.h3
-rw-r--r--target/arm/sve.decode6
-rw-r--r--target/arm/sve_helper.c34
-rw-r--r--target/arm/translate-sve.c12
4 files changed, 55 insertions, 0 deletions
diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index bab20345c6..d977aea00d 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -460,6 +460,9 @@ DEF_HELPER_FLAGS_4(sve_trn_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(sve_trn_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(sve_trn_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve_compact_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve_compact_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
DEF_HELPER_FLAGS_5(sve_and_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve_bic_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve_eor_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index df2b94dc0a..9da6566d32 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -424,6 +424,12 @@ UZP2_z 00000101 .. 1 ..... 011 011 ..... ..... @rd_rn_rm
TRN1_z 00000101 .. 1 ..... 011 100 ..... ..... @rd_rn_rm
TRN2_z 00000101 .. 1 ..... 011 101 ..... ..... @rd_rn_rm
+### SVE Permute - Predicated Group
+
+# SVE compress active elements
+# Note esz >= 2
+COMPACT 00000101 .. 100001 100 ... ..... ..... @rd_pg_rn
+
### SVE Predicate Logical Operations Group
# SVE predicate logical operations
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index f114e9ab63..ed3c6d4ca9 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -2036,3 +2036,37 @@ DO_TRN(sve_trn_d, uint64_t, )
#undef DO_ZIP
#undef DO_UZP
#undef DO_TRN
+
+void HELPER(sve_compact_s)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+ intptr_t i, j, opr_sz = simd_oprsz(desc) / 4;
+ uint32_t *d = vd, *n = vn;
+ uint8_t *pg = vg;
+
+ for (i = j = 0; i < opr_sz; i++) {
+ if (pg[H1(i / 2)] & (i & 1 ? 0x10 : 0x01)) {
+ d[H4(j)] = n[H4(i)];
+ j++;
+ }
+ }
+ for (; j < opr_sz; j++) {
+ d[H4(j)] = 0;
+ }
+}
+
+void HELPER(sve_compact_d)(void *vd, void *vn, void *vg, uint32_t desc)
+{
+ intptr_t i, j, opr_sz = simd_oprsz(desc) / 8;
+ uint64_t *d = vd, *n = vn;
+ uint8_t *pg = vg;
+
+ for (i = j = 0; i < opr_sz; i++) {
+ if (pg[H1(i)] & 1) {
+ d[j] = n[i];
+ j++;
+ }
+ }
+ for (; j < opr_sz; j++) {
+ d[j] = 0;
+ }
+}
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 21319518d7..ed0f48a927 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -2285,6 +2285,18 @@ static bool trans_TRN2_z(DisasContext *s, arg_rrr_esz *a, uint32_t insn)
}
/*
+ *** SVE Permute Vector - Predicated Group
+ */
+
+static bool trans_COMPACT(DisasContext *s, arg_rpr_esz *a, uint32_t insn)
+{
+ static gen_helper_gvec_3 * const fns[4] = {
+ NULL, NULL, gen_helper_sve_compact_s, gen_helper_sve_compact_d
+ };
+ return do_zpz_ool(s, a, fns[a->esz]);
+}
+
+/*
*** SVE Memory - 32-bit Gather and Unsized Contiguous Group
*/