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[PATCH 25/31] target/arm: Implement SVE2 bitwise shift right and accumul
From: |
Richard Henderson |
Subject: |
[PATCH 25/31] target/arm: Implement SVE2 bitwise shift right and accumulate |
Date: |
Thu, 26 Mar 2020 16:08:32 -0700 |
Signed-off-by: Richard Henderson <address@hidden>
---
target/arm/sve.decode | 8 ++++++++
target/arm/translate-sve.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 5d46e3ab45..756f939df1 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -1253,3 +1253,11 @@ UABALT 01000101 .. 0 ..... 1100 11 ..... .....
@rda_rn_rm
# ADC and SBC decoded via size in helper dispatch.
ADCLB 01000101 .. 0 ..... 11010 0 ..... ..... @rda_rn_rm
ADCLT 01000101 .. 0 ..... 11010 1 ..... ..... @rda_rn_rm
+
+## SVE2 bitwise shift right and accumulate
+
+# TODO: Use @rda and %reg_movprfx here.
+SSRA 01000101 .. 0 ..... 1110 00 ..... ..... @rd_rn_tszimm_shr
+USRA 01000101 .. 0 ..... 1110 01 ..... ..... @rd_rn_tszimm_shr
+SRSRA 01000101 .. 0 ..... 1110 10 ..... ..... @rd_rn_tszimm_shr
+URSRA 01000101 .. 0 ..... 1110 11 ..... ..... @rd_rn_tszimm_shr
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index a80765a978..1d1f55dfdd 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -6317,3 +6317,37 @@ static bool trans_ADCLT(DisasContext *s, arg_rrrr_esz *a)
{
return do_adcl(s, a, true);
}
+
+static bool do_sve2_fn2i(DisasContext *s, arg_rri_esz *a, GVecGen2iFn *fn)
+{
+ if (!dc_isar_feature(aa64_sve2, s)) {
+ return false;
+ }
+ if (sve_access_check(s)) {
+ unsigned vsz = vec_full_reg_size(s);
+ unsigned rd_ofs = vec_full_reg_offset(s, a->rd);
+ unsigned rn_ofs = vec_full_reg_offset(s, a->rn);
+ fn(a->esz, rd_ofs, rn_ofs, a->imm, vsz, vsz);
+ }
+ return true;
+}
+
+static bool trans_SSRA(DisasContext *s, arg_rri_esz *a)
+{
+ return do_sve2_fn2i(s, a, arm_gen_gvec_ssra);
+}
+
+static bool trans_USRA(DisasContext *s, arg_rri_esz *a)
+{
+ return do_sve2_fn2i(s, a, arm_gen_gvec_usra);
+}
+
+static bool trans_SRSRA(DisasContext *s, arg_rri_esz *a)
+{
+ return do_sve2_fn2i(s, a, arm_gen_gvec_srsra);
+}
+
+static bool trans_URSRA(DisasContext *s, arg_rri_esz *a)
+{
+ return do_sve2_fn2i(s, a, arm_gen_gvec_ursra);
+}
--
2.20.1
- [PATCH 17/31] target/arm: Implement SVE2 bitwise shift left long, (continued)
- [PATCH 17/31] target/arm: Implement SVE2 bitwise shift left long, Richard Henderson, 2020/03/26
- [PATCH 18/31] target/arm: Implement SVE2 bitwise exclusive-or interleaved, Richard Henderson, 2020/03/26
- [PATCH 19/31] target/arm: Implement SVE2 bitwise permute, Richard Henderson, 2020/03/26
- [PATCH 20/31] target/arm: Implement SVE2 complex integer add, Richard Henderson, 2020/03/26
- [PATCH 22/31] target/arm: Implement SVE2 integer add/subtract long with carry, Richard Henderson, 2020/03/26
- [PATCH 23/31] target/arm: Create arm_gen_gvec_[us]sra, Richard Henderson, 2020/03/26
- [PATCH 21/31] target/arm: Implement SVE2 integer absolute difference and accumulate long, Richard Henderson, 2020/03/26
- [PATCH 24/31] target/arm: Create arm_gen_gvec_{u,s}{rshr,rsra}, Richard Henderson, 2020/03/26
- [PATCH 27/31] target/arm: Tidy handle_vec_simd_shri, Richard Henderson, 2020/03/26
- [PATCH 29/31] target/arm: Vectorize SABD/UABD, Richard Henderson, 2020/03/26
- [PATCH 25/31] target/arm: Implement SVE2 bitwise shift right and accumulate,
Richard Henderson <=
- [PATCH 28/31] target/arm: Implement SVE2 bitwise shift and insert, Richard Henderson, 2020/03/26
- [PATCH 26/31] target/arm: Create arm_gen_gvec_{sri,sli}, Richard Henderson, 2020/03/26
- [PATCH 30/31] target/arm: Vectorize SABA/UABA, Richard Henderson, 2020/03/26
- [PATCH 31/31] target/arm: Implement SVE2 integer absolute difference and accumulate, Richard Henderson, 2020/03/26