i386: Remove redundant move in vnni pattern

gcc/ChangeLog:

	* config/i386/sse.md (sdot_prod<mode>): Remove redundant SET.
	(usdot_prod<mode>): Ditto.
	(sdot_prod<mode>): Ditto.
	(udot_prod<mode>): Ditto.

diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 532738dcf946f6433d2aeb8c721613f15a451021..acd10908d76221e72b20589f61e619fc92f7d83c 100644 (file)
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -16174,7 +16174,6 @@
       operands[2] = lowpart_subreg (<sseunpackmode>mode,
                                    force_reg (<MODE>mode, operands[2]),
                                    <MODE>mode);
-      emit_insn (gen_rtx_SET (operands[0], operands[3]));
       emit_insn (gen_vpdpwssd_<SDOT_VPDP_SUF> (operands[0], operands[3],
                                               operands[1], operands[2]));
     }
@@ -29963,7 +29962,6 @@
   operands[2] = lowpart_subreg (<ssedvecmode>mode,
                                force_reg (<MODE>mode, operands[2]),
                                <MODE>mode);
-  emit_insn (gen_rtx_SET (operands[0], operands[3]));
   emit_insn (gen_vpdpbusd_<ssedvecmodelower> (operands[0], operands[3],
                                  operands[1], operands[2]));
   DONE;
@@ -30780,7 +30778,6 @@
       operands[2] = lowpart_subreg (<ssedvecmode>mode,
                                    force_reg (<MODE>mode, operands[2]),
                                    <MODE>mode);
-      emit_insn (gen_rtx_SET (operands[0], operands[3]));
       emit_insn (gen_vpdpbssd_<ssedvecmodelower> (operands[0], operands[3],
                                                  operands[1], operands[2]));
     }
@@ -30857,7 +30854,6 @@
       operands[2] = lowpart_subreg (<ssedvecmode>mode,
                                    force_reg (<MODE>mode, operands[2]),
                                    <MODE>mode);
-      emit_insn (gen_rtx_SET (operands[0], operands[3]));
       emit_insn (gen_vpdpbuud_<ssedvecmodelower> (operands[0], operands[3],
                                                  operands[1], operands[2]));
    }