Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/sparc/insns.decode |  1 +
 target/sparc/translate.c  | 38 ++++++++++++++++++++++----------------
 2 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 1d766fab21..4cb250265d 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -247,6 +247,7 @@ FABSs       10 ..... 110100 00000 0 0000 1001 .....        @r_r2
 FABSd       10 ..... 110100 00000 0 0000 1010 .....        @r_r2
 FSQRTs      10 ..... 110100 00000 0 0010 1001 .....        @r_r2
 FSQRTd      10 ..... 110100 00000 0 0010 1010 .....        @r_r2
+FSQRTq      10 ..... 110100 00000 0 0010 1011 .....        @r_r2
 FdTOx       10 ..... 110100 00000 0 1000 0010 .....        @r_r2
 FxTOd       10 ..... 110100 00000 0 1000 1000 .....        @r_r2
 FiTOs       10 ..... 110100 00000 0 1100 0100 .....        @r_r2
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 307fbc4628..93efdf3383 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -1686,18 +1686,6 @@ static void gen_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2,
     gen_store_fpr_D(dc, rd, dst);
 }
 
-static void gen_fop_QQ(DisasContext *dc, int rd, int rs,
-                       void (*gen)(TCGv_ptr))
-{
-    gen_op_load_fpr_QT1(QFPREG(rs));
-
-    gen(tcg_env);
-    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
-
-    gen_op_store_QT0_fpr(QFPREG(rd));
-    gen_update_fprs_dirty(dc, QFPREG(rd));
-}
-
 #ifdef TARGET_SPARC64
 static void gen_ne_fop_QQ(DisasContext *dc, int rd, int rs,
                           void (*gen)(TCGv_ptr))
@@ -4845,6 +4833,27 @@ TRANS(FSQRTd, ALL, do_env_dd, a, gen_helper_fsqrtd)
 TRANS(FxTOd, 64, do_env_dd, a, gen_helper_fxtod)
 TRANS(FdTOx, 64, do_env_dd, a, gen_helper_fdtox)
 
+static bool do_env_qq(DisasContext *dc, arg_r_r *a,
+                       void (*func)(TCGv_env))
+{
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+    if (gen_trap_float128(dc)) {
+        return true;
+    }
+
+    gen_op_clear_ieee_excp_and_FTT();
+    gen_op_load_fpr_QT1(QFPREG(a->rs));
+    func(tcg_env);
+    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
+    gen_op_store_QT0_fpr(QFPREG(a->rd));
+    gen_update_fprs_dirty(dc, QFPREG(a->rd));
+    return advance_pc(dc);
+}
+
+TRANS(FSQRTq, ALL, do_env_qq, a, gen_helper_fsqrtq)
+
 static bool do_fff(DisasContext *dc, arg_r_r_r *a,
                    void (*func)(TCGv_i32, TCGv_i32, TCGv_i32))
 {
@@ -4990,11 +4999,8 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x2a: /* fsqrtd */
                 case 0x82: /* V9 fdtox */
                 case 0x88: /* V9 fxtod */
-                    g_assert_not_reached(); /* in decodetree */
                 case 0x2b: /* fsqrtq */
-                    CHECK_FPU_FEATURE(dc, FLOAT128);
-                    gen_fop_QQ(dc, rd, rs2, gen_helper_fsqrtq);
-                    break;
+                    g_assert_not_reached(); /* in decodetree */
                 case 0x41: /* fadds */
                     gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fadds);
                     break;
-- 
2.34.1