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[PATCH v6 13/45] target/arm: Mark LDFF1 and LDNF1 as non-streaming


From: Richard Henderson
Subject: [PATCH v6 13/45] target/arm: Mark LDFF1 and LDNF1 as non-streaming
Date: Fri, 8 Jul 2022 20:45:08 +0530

Mark these as a non-streaming instructions, which should trap
if full a64 support is not enabled in streaming mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/sme-fa64.decode | 2 --
 target/arm/translate-sve.c | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/arm/sme-fa64.decode b/target/arm/sme-fa64.decode
index 7d4c33fb5b..2b5432bf85 100644
--- a/target/arm/sme-fa64.decode
+++ b/target/arm/sme-fa64.decode
@@ -59,7 +59,5 @@ FAIL    0001 1110 0111 1110 0000 00-- ---- ----   # FJCVTZS
 #       --11 1100 --1- ---- ---- ---- ---- --10   # Load/store FP register 
(register offset)
 #       --11 1101 ---- ---- ---- ---- ---- ----   # Load/store FP register 
(scaled imm)
 
-FAIL    1010 010- ---- ---- 011- ---- ---- ----   # SVE contiguous FF load 
(scalar+scalar)
-FAIL    1010 010- ---1 ---- 101- ---- ---- ----   # SVE contiguous NF load 
(scalar+imm)
 FAIL    1010 010- -01- ---- 000- ---- ---- ----   # SVE load & replicate 32 
bytes (scalar+scalar)
 FAIL    1010 010- -010 ---- 001- ---- ---- ----   # SVE load & replicate 32 
bytes (scalar+imm)
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index bbf3bf2119..5182ee4c06 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -4805,6 +4805,7 @@ static bool trans_LDFF1_zprr(DisasContext *s, 
arg_rprr_load *a)
     if (!dc_isar_feature(aa64_sve, s)) {
         return false;
     }
+    s->is_nonstreaming = true;
     if (sve_access_check(s)) {
         TCGv_i64 addr = new_tmp_a64(s);
         tcg_gen_shli_i64(addr, cpu_reg(s, a->rm), dtype_msz(a->dtype));
@@ -4906,6 +4907,7 @@ static bool trans_LDNF1_zpri(DisasContext *s, 
arg_rpri_load *a)
     if (!dc_isar_feature(aa64_sve, s)) {
         return false;
     }
+    s->is_nonstreaming = true;
     if (sve_access_check(s)) {
         int vsz = vec_full_reg_size(s);
         int elements = vsz >> dtype_esz[a->dtype];
-- 
2.34.1




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