[PULL 25/33] target/arm: Update ZIP, UZP, TRN for pred_desc

From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 25/33] target/arm: Update ZIP, UZP, TRN for pred_desc
Date: Tue, 19 Jan 2021 15:10:56 +0000	[thread overview]
Message-ID: <20210119151104.16264-26-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210119151104.16264-1-peter.maydell@linaro.org>

From: Richard Henderson <richard.henderson@linaro.org>

Update all users of do_perm_pred3 for the new
predicate descriptor field definitions.

Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210113062650.593824-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/sve_helper.c    | 18 +++++++++---------
 target/arm/translate-sve.c | 12 ++++--------
 2 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index ff01851bf28..7eec4b6b73a 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -1868,9 +1868,9 @@ static uint64_t compress_bits(uint64_t x, int n)
 
 void HELPER(sve_zip_p)(void *vd, void *vn, void *vm, uint32_t pred_desc)
 {
-    intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2;
-    int esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2);
-    intptr_t high = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1);
+    intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ);
+    int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ);
+    intptr_t high = FIELD_EX32(pred_desc, PREDDESC, DATA);
     uint64_t *d = vd;
     intptr_t i;
 
@@ -1929,9 +1929,9 @@ void HELPER(sve_zip_p)(void *vd, void *vn, void *vm, uint32_t pred_desc)
 
 void HELPER(sve_uzp_p)(void *vd, void *vn, void *vm, uint32_t pred_desc)
 {
-    intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2;
-    int esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2);
-    int odd = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1) << esz;
+    intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ);
+    int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ);
+    int odd = FIELD_EX32(pred_desc, PREDDESC, DATA) << esz;
     uint64_t *d = vd, *n = vn, *m = vm;
     uint64_t l, h;
     intptr_t i;
@@ -1986,9 +1986,9 @@ void HELPER(sve_uzp_p)(void *vd, void *vn, void *vm, uint32_t pred_desc)
 
 void HELPER(sve_trn_p)(void *vd, void *vn, void *vm, uint32_t pred_desc)
 {
-    intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2;
-    uintptr_t esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2);
-    bool odd = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1);
+    intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ);
+    int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ);
+    int odd = FIELD_EX32(pred_desc, PREDDESC, DATA);
     uint64_t *d = vd, *n = vn, *m = vm;
     uint64_t mask;
     int shr, shl;
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index efcb646f729..0baca176a09 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -2110,19 +2110,15 @@ static bool do_perm_pred3(DisasContext *s, arg_rrr_esz *a, bool high_odd,
 
     unsigned vsz = pred_full_reg_size(s);
 
-    /* Predicate sizes may be smaller and cannot use simd_desc.
-       We cannot round up, as we do elsewhere, because we need
-       the exact size for ZIP2 and REV.  We retain the style for
-       the other helpers for consistency.  */
     TCGv_ptr t_d = tcg_temp_new_ptr();
     TCGv_ptr t_n = tcg_temp_new_ptr();
     TCGv_ptr t_m = tcg_temp_new_ptr();
     TCGv_i32 t_desc;
-    int desc;
+    uint32_t desc = 0;
 
-    desc = vsz - 2;
-    desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz);
-    desc = deposit32(desc, SIMD_DATA_SHIFT + 2, 2, high_odd);
+    desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz);
+    desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz);
+    desc = FIELD_DP32(desc, PREDDESC, DATA, high_odd);
 
     tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd));
     tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn));
-- 
2.20.1


