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-rw-r--r--target/arm/translate-neon.inc.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 3d566044f3..2a445c7589 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1659,3 +1659,52 @@ static bool trans_VSHLL_U_2sh(DisasContext *s, arg_2reg_shift *a)
     };
     return do_vshll_2sh(s, a, widenfn[a->size], true);
 }
+
+static bool do_fp_2sh(DisasContext *s, arg_2reg_shift *a,
+                      NeonGenTwoSingleOPFn *fn)
+{
+    /* FP operations in 2-reg-and-shift group */
+    TCGv_i32 tmp, shiftv;
+    TCGv_ptr fpstatus;
+    int pass;
+
+    if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {
+        return false;
+    }
+
+    /* UNDEF accesses to D16-D31 if they don't exist. */
+    if (!dc_isar_feature(aa32_simd_r32, s) &&
+        ((a->vd | a->vm) & 0x10)) {
+        return false;
+    }
+
+    if ((a->vm | a->vd) & a->q) {
+        return false;
+    }
+
+    if (!vfp_access_check(s)) {
+        return true;
+    }
+
+    fpstatus = get_fpstatus_ptr(1);
+    shiftv = tcg_const_i32(a->shift);
+    for (pass = 0; pass < (a->q ? 4 : 2); pass++) {
+        tmp = neon_load_reg(a->vm, pass);
+        fn(tmp, tmp, shiftv, fpstatus);
+        neon_store_reg(a->vd, pass, tmp);
+    }
+    tcg_temp_free_ptr(fpstatus);
+    tcg_temp_free_i32(shiftv);
+    return true;
+}
+
+#define DO_FP_2SH(INSN, FUNC)                                           \
+    static bool trans_##INSN##_2sh(DisasContext *s, arg_2reg_shift *a)  \
+    {                                                                   \
+        return do_fp_2sh(s, a, FUNC);                                   \
+    }
+
+DO_FP_2SH(VCVT_SF, gen_helper_vfp_sltos)
+DO_FP_2SH(VCVT_UF, gen_helper_vfp_ultos)
+DO_FP_2SH(VCVT_FS, gen_helper_vfp_tosls_round_to_zero)
+DO_FP_2SH(VCVT_FU, gen_helper_vfp_touls_round_to_zero)