target-arm: Return right result for Neon comparison with NaNs

[qemu.git] / target-arm / op_helper.c

diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index f71162bc4fbf6c4006f6c12aabd0ae4b449872e5..3de261034888326f1f0700a7c1d70ec76f667c83 100644 (file)
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -14,8 +14,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 #include "exec.h"
 #include "helpers.h"
@@ -29,20 +28,6 @@ void raise_exception(int tt)
     cpu_loop_exit();
 }
 
-/* thread support */
-
-static spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
-
-void cpu_lock(void)
-{
-    spin_lock(&global_cpu_lock);
-}
-
-void cpu_unlock(void)
-{
-    spin_unlock(&global_cpu_lock);
-}
-
 uint32_t HELPER(neon_tbl)(uint32_t ireg, uint32_t def,
                           uint32_t rn, uint32_t maxindex)
 {
@@ -380,14 +365,6 @@ uint32_t HELPER(sar)(uint32_t x, uint32_t i)
     return (int32_t)x >> shift;
 }
 
-uint32_t HELPER(ror)(uint32_t x, uint32_t i)
-{
-    int shift = i & 0xff;
-    if (shift == 0)
-        return x;
-    return (x >> shift) | (x << (32 - shift));
-}
-
 uint32_t HELPER(shl_cc)(uint32_t x, uint32_t i)
 {
     int shift = i & 0xff;
@@ -447,110 +424,3 @@ uint32_t HELPER(ror_cc)(uint32_t x, uint32_t i)
         return ((uint32_t)x >> shift) | (x << (32 - shift));
     }
 }
-
-uint64_t HELPER(neon_add_saturate_s64)(uint64_t src1, uint64_t src2)
-{
-    uint64_t res;
-
-    res = src1 + src2;
-    if (((res ^ src1) & SIGNBIT64) && !((src1 ^ src2) & SIGNBIT64)) {
-        env->QF = 1;
-        res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64;
-    }
-    return res;
-}
-
-uint64_t HELPER(neon_add_saturate_u64)(uint64_t src1, uint64_t src2)
-{
-    uint64_t res;
-
-    res = src1 + src2;
-    if (res < src1) {
-        env->QF = 1;
-        res = ~(uint64_t)0;
-    }
-    return res;
-}
-
-uint64_t HELPER(neon_sub_saturate_s64)(uint64_t src1, uint64_t src2)
-{
-    uint64_t res;
-
-    res = src1 - src2;
-    if (((res ^ src1) & SIGNBIT64) && ((src1 ^ src2) & SIGNBIT64)) {
-        env->QF = 1;
-        res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64;
-    }
-    return res;
-}
-
-uint64_t HELPER(neon_sub_saturate_u64)(uint64_t src1, uint64_t src2)
-{
-    uint64_t res;
-
-    if (src1 < src2) {
-        env->QF = 1;
-        res = 0;
-    } else {
-        res = src1 - src2;
-    }
-    return res;
-}
-
-/* These need to return a pair of value, so still use T0/T1.  */
-/* Transpose.  Argument order is rather strange to avoid special casing
-   the tranlation code.
-   On input T0 = rm, T1 = rd.  On output T0 = rd, T1 = rm  */
-void HELPER(neon_trn_u8)(void)
-{
-    uint32_t rd;
-    uint32_t rm;
-    rd = ((T0 & 0x00ff00ff) << 8) | (T1 & 0x00ff00ff);
-    rm = ((T1 & 0xff00ff00) >> 8) | (T0 & 0xff00ff00);
-    T0 = rd;
-    T1 = rm;
-}
-
-void HELPER(neon_trn_u16)(void)
-{
-    uint32_t rd;
-    uint32_t rm;
-    rd = (T0 << 16) | (T1 & 0xffff);
-    rm = (T1 >> 16) | (T0 & 0xffff0000);
-    T0 = rd;
-    T1 = rm;
-}
-
-/* Worker routines for zip and unzip.  */
-void HELPER(neon_unzip_u8)(void)
-{
-    uint32_t rd;
-    uint32_t rm;
-    rd = (T0 & 0xff) | ((T0 >> 8) & 0xff00)
-         | ((T1 << 16) & 0xff0000) | ((T1 << 8) & 0xff000000);
-    rm = ((T0 >> 8) & 0xff) | ((T0 >> 16) & 0xff00)
-         | ((T1 << 8) & 0xff0000) | (T1 & 0xff000000);
-    T0 = rd;
-    T1 = rm;
-}
-
-void HELPER(neon_zip_u8)(void)
-{
-    uint32_t rd;
-    uint32_t rm;
-    rd = (T0 & 0xff) | ((T1 << 8) & 0xff00)
-         | ((T0 << 16) & 0xff0000) | ((T1 << 24) & 0xff000000);
-    rm = ((T0 >> 16) & 0xff) | ((T1 >> 8) & 0xff00)
-         | ((T0 >> 8) & 0xff0000) | (T1 & 0xff000000);
-    T0 = rd;
-    T1 = rm;
-}
-
-void HELPER(neon_zip_u16)(void)
-{
-    uint32_t tmp;
-
-    tmp = (T0 & 0xffff) | (T1 << 16);
-    T1 = (T1 & 0xffff0000) | (T0 >> 16);
-    T0 = tmp;
-}