[AArch64] Remove aarch64_simd_attr_length_move

	* config/aarch64/aarch64.c (aarch64_simd_attr_length_move): Delete.
	* config/aarch64/aarch64-protos.h (aarch64_simd_attr_length_move):
	Delete prototype.
	* config/aarch64/iterators.md (insn_count): Add descriptive comment.
	* config/aarch64/aarch64-simd.md (*aarch64_mov<mode>, VSTRUCT modes):
	Remove use of aarch64_simd_attr_length_move, set length attribute
	directly.
	(*aarch64_be_movoi): Likewise.
	(*aarch64_be_movci): Likewise.
	(*aarch64_be_movxi): Likewise.

From-SVN: r236916

gcc/ChangeLog

+2016-05-31  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64.c (aarch64_simd_attr_length_move): Delete.
+	* config/aarch64/aarch64-protos.h (aarch64_simd_attr_length_move):
+	Delete prototype.
+	* config/aarch64/iterators.md (insn_count): Add descriptive comment.
+	* config/aarch64/aarch64-simd.md (*aarch64_mov<mode>, VSTRUCT modes):
+	Remove use of aarch64_simd_attr_length_move, set length attribute
+	directly.
+	(*aarch64_be_movoi): Likewise.
+	(*aarch64_be_movci): Likewise.
+	(*aarch64_be_movxi): Likewise.
+
 2016-05-31  Jan Hubicka  <hubicka@ucw.cz>
 
 	* loop-init.c (gate): Do not enale RTL loop unroller with -fpeel-loops.

gcc/config/aarch64/aarch64-protos.h

@@ -333,7 +333,6 @@ machine_mode aarch64_hard_regno_caller_save_mode (unsigned, unsigned,
 						       machine_mode);
 int aarch64_hard_regno_mode_ok (unsigned, machine_mode);
 int aarch64_hard_regno_nregs (unsigned, machine_mode);
-int aarch64_simd_attr_length_move (rtx_insn *);
 int aarch64_uxt_size (int, HOST_WIDE_INT);
 int aarch64_vec_fpconst_pow_of_2 (rtx);
 rtx aarch64_final_eh_return_addr (void);

gcc/config/aarch64/aarch64-simd.md

@@ -4639,7 +4639,7 @@
    ld1\\t{%S0.16b - %<Vendreg>0.16b}, %1"
   [(set_attr "type" "multiple,neon_store<nregs>_<nregs>reg_q,\
 		     neon_load<nregs>_<nregs>reg_q")
-   (set (attr "length") (symbol_ref "aarch64_simd_attr_length_move (insn)"))]
+   (set_attr "length" "<insn_count>,4,4")]
 )
 
 (define_insn "aarch64_be_ld1<mode>"
@@ -4672,7 +4672,7 @@
    stp\\t%q1, %R1, %0
    ldp\\t%q0, %R0, %1"
   [(set_attr "type" "multiple,neon_stp_q,neon_ldp_q")
-   (set (attr "length") (symbol_ref "aarch64_simd_attr_length_move (insn)"))]
+   (set_attr "length" "8,4,4")]
 )
 
 (define_insn "*aarch64_be_movci"
@@ -4683,7 +4683,7 @@
        || register_operand (operands[1], CImode))"
   "#"
   [(set_attr "type" "multiple")
-   (set (attr "length") (symbol_ref "aarch64_simd_attr_length_move (insn)"))]
+   (set_attr "length" "12,4,4")]
 )
 
 (define_insn "*aarch64_be_movxi"
@@ -4694,7 +4694,7 @@
        || register_operand (operands[1], XImode))"
   "#"
   [(set_attr "type" "multiple")
-   (set (attr "length") (symbol_ref "aarch64_simd_attr_length_move (insn)"))]
+   (set_attr "length" "16,4,4")]
 )
 
 (define_split

gcc/config/aarch64/aarch64.c

@@ -10734,33 +10734,6 @@ aarch64_simd_emit_reg_reg_move (rtx *operands, enum machine_mode mode,
 		      gen_rtx_REG (mode, rsrc + count - i - 1));
 }
 
-/* Compute and return the length of aarch64_simd_mov<mode>, where <mode> is
-   one of VSTRUCT modes: OI, CI or XI.  */
-int
-aarch64_simd_attr_length_move (rtx_insn *insn)
-{
-  machine_mode mode;
-
-  extract_insn_cached (insn);
-
-  if (REG_P (recog_data.operand[0]) && REG_P (recog_data.operand[1]))
-    {
-      mode = GET_MODE (recog_data.operand[0]);
-      switch (mode)
-	{
-	case OImode:
-	  return 8;
-	case CImode:
-	  return 12;
-	case XImode:
-	  return 16;
-	default:
-	  gcc_unreachable ();
-	}
-    }
-  return 4;
-}
-
 /* Compute and return the length of aarch64_simd_reglist<mode>, where <mode> is
    one of VSTRUCT modes: OI, CI, or XI.  */
 int

gcc/config/aarch64/iterators.md

@@ -715,6 +715,7 @@
 (define_mode_attr vsi2qi [(V2SI "v8qi") (V4SI "v16qi")])
 (define_mode_attr VSI2QI [(V2SI "V8QI") (V4SI "V16QI")])
 
+;; Sum of lengths of instructions needed to move vector registers of a mode.
 (define_mode_attr insn_count [(OI "8") (CI "12") (XI "16")])
 
 ;; -fpic small model GOT reloc modifers: gotpage_lo15/lo14 for ILP64/32.