S/390: movdf improvements

[gcc.git] / gcc / ChangeLog

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
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@@ -1,3 +1,40 @@
+2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+       * config/s390/s390.md ("mov<mode>_64dfp" DD_DF): Use vleig for loading a
+       FP zero.
+       ("*mov<mode>_64" DD_DF): Remove the vector instructions. These
+       will anyway by matched by mov<mode>_64dfp.
+
+2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+       * config/s390/s390.md ("mov<mode>" SD_SF): Change vleg/vsteg to
+       vlef/vstef.  Add missing operand to vleif.
+
+2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+       * config/s390/s390.c (s390_expand_vec_init): Enable vector load
+       pair for all vector types with 64 bit elements.
+       * config/s390/vx-builtins.md (V_HW_64): Move mode iterator to ...
+       * config/s390/vector.md (V_HW_64): ... here.
+       (V_128_NOSINGLE): New mode iterator.
+       ("vec_init<V_HW:mode>"): Use V_128 as mode iterator.
+       ("*vec_splat<mode>"): Use V_128_NOSINGLE mode iterator.
+       ("*vec_tf_to_v1tf", "*vec_ti_to_v1ti"): New pattern definitions.
+       ("*vec_load_pairv2di"): Change to ...
+       ("*vec_load_pair<mode>"): ... this one.
+
+2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+       * config/s390/constraints.md: Add comments.
+       (jKK): Reject element sizes > 8 bytes.
+       * config/s390/s390.c (s390_split_ok_p): Enable splitting also for
+       s_operands.
+       * config/s390/s390.md: Add the s_operand checks formerly in
+       s390_split_ok_p to various splitters where they are still
+       required.
+       * config/s390/vector.md ("mov<mode>" V_128): Add GPR alternatives
+       for 128 bit vectors.  Plus two splitters.
+
 2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
        * config/s390/s390.md: Rename the cpu facilty vec to vx throughout