[Bug target/121274] [14/15/16 Regression] xmm extraction from zmm vector emits unnecessary vpextrq/vpinsrq sequence

[liuhongt at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121274

Hongtao Liu <liuhongt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |liuhongt at gcc dot gnu.org

--- Comment #4 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
Probably caused by r14-1902-g96c3539f2a3813

-  /* Special case TImode to V1TImode conversions, via V2DI.  */
-  if (mode == V1TImode
+  /* Special case TImode to 128-bit vector conversions via V2DI.  */
+  if (VECTOR_MODE_P (mode)
+      && GET_MODE_SIZE (mode) == 16
       && SUBREG_P (op1)
       && GET_MODE (SUBREG_REG (op1)) == TImode
       && TARGET_64BIT && TARGET_SSE
@@ -709,7 +711,7 @@ ix86_expand_vector_move (machine_mode mode, rtx operands[])
       emit_move_insn (lo, gen_lowpart (DImode, SUBREG_REG (op1)));
       emit_move_insn (hi, gen_highpart (DImode, SUBREG_REG (op1)));
       emit_insn (gen_vec_concatv2di (tmp, lo, hi));
-      emit_move_insn (op0, gen_lowpart (V1TImode, tmp));
+      emit_move_insn (op0, gen_lowpart (mode, tmp));
       return;
     }