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[6/9] NEON vec_load_lanes and vec_store_lanes patterns

From: Richard Sandiford <richard dot sandiford at linaro dot org>
To: gcc-patches at gcc dot gnu dot org
Cc: patches at linaro dot org
Date: Tue, 12 Apr 2011 15:01:16 +0100
Subject: [6/9] NEON vec_load_lanes and vec_store_lanes patterns
References: <g4pqorfvwp.fsf@linaro.org>

This patch adds vec_load_lanes and vec_store_lanes patterns for NEON.
They feed directly into the corresponding intrinsic patterns.

Tested on x86_64-linux-gnu and arm-linux-gnueabi.  OK to install?

Richard


gcc/
	* config/arm/neon.md (vec_load_lanes<mode><mode>): New expanders,
	(vec_store_lanes<mode><mode>): Likewise.

Index: gcc/config/arm/neon.md
===================================================================
--- gcc/config/arm/neon.md	2011-04-12 11:54:04.000000000 +0100
+++ gcc/config/arm/neon.md	2011-04-12 11:55:11.000000000 +0100
@@ -4258,6 +4258,12 @@ (define_expand "neon_vreinterpretv2di<mo
   DONE;
 })
 
+(define_expand "vec_load_lanes<mode><mode>"
+  [(set (match_operand:VDQX 0 "s_register_operand")
+        (unspec:VDQX [(match_operand:VDQX 1 "neon_struct_operand")]
+                     UNSPEC_VLD1))]
+  "TARGET_NEON")
+
 (define_insn "neon_vld1<mode>"
   [(set (match_operand:VDQX 0 "s_register_operand" "=w")
         (unspec:VDQX [(match_operand:VDQX 1 "neon_struct_operand" "Um")]
@@ -4355,6 +4361,12 @@ (define_insn "neon_vld1_dup<mode>"
                     (const_string "neon_vld1_1_2_regs")))]
 )
 
+(define_expand "vec_store_lanes<mode><mode>"
+  [(set (match_operand:VDQX 0 "neon_struct_operand")
+	(unspec:VDQX [(match_operand:VDQX 1 "s_register_operand")]
+		     UNSPEC_VST1))]
+  "TARGET_NEON")
+
 (define_insn "neon_vst1<mode>"
   [(set (match_operand:VDQX 0 "neon_struct_operand" "=Um")
 	(unspec:VDQX [(match_operand:VDQX 1 "s_register_operand" "w")]
@@ -4411,6 +4423,13 @@ (define_insn "neon_vst1_lane<mode>"
   [(set_attr "neon_type" "neon_vst1_vst2_lane")]
 )
 
+(define_expand "vec_load_lanesti<mode>"
+  [(set (match_operand:TI 0 "s_register_operand")
+        (unspec:TI [(match_operand:TI 1 "neon_struct_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+		   UNSPEC_VLD2))]
+  "TARGET_NEON")
+
 (define_insn "neon_vld2<mode>"
   [(set (match_operand:TI 0 "s_register_operand" "=w")
         (unspec:TI [(match_operand:TI 1 "neon_struct_operand" "Um")
@@ -4429,6 +4448,13 @@ (define_insn "neon_vld2<mode>"
                     (const_string "neon_vld2_2_regs_vld1_vld2_all_lanes")))]
 )
 
+(define_expand "vec_load_lanesoi<mode>"
+  [(set (match_operand:OI 0 "s_register_operand")
+        (unspec:OI [(match_operand:OI 1 "neon_struct_operand")
+                    (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+		   UNSPEC_VLD2))]
+  "TARGET_NEON")
+
 (define_insn "neon_vld2<mode>"
   [(set (match_operand:OI 0 "s_register_operand" "=w")
         (unspec:OI [(match_operand:OI 1 "neon_struct_operand" "Um")
@@ -4511,6 +4537,13 @@ (define_insn "neon_vld2_dup<mode>"
                     (const_string "neon_vld1_1_2_regs")))]
 )
 
+(define_expand "vec_store_lanesti<mode>"
+  [(set (match_operand:TI 0 "neon_struct_operand")
+	(unspec:TI [(match_operand:TI 1 "s_register_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+                   UNSPEC_VST2))]
+  "TARGET_NEON")
+
 (define_insn "neon_vst2<mode>"
   [(set (match_operand:TI 0 "neon_struct_operand" "=Um")
         (unspec:TI [(match_operand:TI 1 "s_register_operand" "w")
@@ -4529,6 +4562,13 @@ (define_insn "neon_vst2<mode>"
                     (const_string "neon_vst1_1_2_regs_vst2_2_regs")))]
 )
 
+(define_expand "vec_store_lanesoi<mode>"
+  [(set (match_operand:OI 0 "neon_struct_operand")
+	(unspec:OI [(match_operand:OI 1 "s_register_operand")
+                    (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+                   UNSPEC_VST2))]
+  "TARGET_NEON")
+
 (define_insn "neon_vst2<mode>"
   [(set (match_operand:OI 0 "neon_struct_operand" "=Um")
 	(unspec:OI [(match_operand:OI 1 "s_register_operand" "w")
@@ -4594,6 +4634,13 @@ (define_insn "neon_vst2_lane<mode>"
   [(set_attr "neon_type" "neon_vst1_vst2_lane")]
 )
 
+(define_expand "vec_load_lanesei<mode>"
+  [(set (match_operand:EI 0 "s_register_operand")
+        (unspec:EI [(match_operand:EI 1 "neon_struct_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+		   UNSPEC_VLD3))]
+  "TARGET_NEON")
+
 (define_insn "neon_vld3<mode>"
   [(set (match_operand:EI 0 "s_register_operand" "=w")
         (unspec:EI [(match_operand:EI 1 "neon_struct_operand" "Um")
@@ -4612,6 +4659,16 @@ (define_insn "neon_vld3<mode>"
                     (const_string "neon_vld3_vld4")))]
 )
 
+(define_expand "vec_load_lanesci<mode>"
+  [(match_operand:CI 0 "s_register_operand")
+   (match_operand:CI 1 "neon_struct_operand")
+   (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+  "TARGET_NEON"
+{
+  emit_insn (gen_neon_vld3<mode> (operands[0], operands[1]));
+  DONE;
+})
+
 (define_expand "neon_vld3<mode>"
   [(match_operand:CI 0 "s_register_operand")
    (match_operand:CI 1 "neon_struct_operand")
@@ -4751,6 +4808,13 @@ (define_insn "neon_vld3_dup<mode>"
                     (const_string "neon_vld3_vld4_all_lanes")
                     (const_string "neon_vld1_1_2_regs")))])
 
+(define_expand "vec_store_lanesei<mode>"
+  [(set (match_operand:EI 0 "neon_struct_operand")
+	(unspec:EI [(match_operand:EI 1 "s_register_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+                   UNSPEC_VST3))]
+  "TARGET_NEON")
+
 (define_insn "neon_vst3<mode>"
   [(set (match_operand:EI 0 "neon_struct_operand" "=Um")
         (unspec:EI [(match_operand:EI 1 "s_register_operand" "w")
@@ -4768,6 +4832,16 @@ (define_insn "neon_vst3<mode>"
                     (const_string "neon_vst1_1_2_regs_vst2_2_regs")
                     (const_string "neon_vst2_4_regs_vst3_vst4")))])
 
+(define_expand "vec_store_lanesci<mode>"
+  [(match_operand:CI 0 "neon_struct_operand")
+   (match_operand:CI 1 "s_register_operand")
+   (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+  "TARGET_NEON"
+{
+  emit_insn (gen_neon_vst3<mode> (operands[0], operands[1]));
+  DONE;
+})
+
 (define_expand "neon_vst3<mode>"
   [(match_operand:CI 0 "neon_struct_operand")
    (match_operand:CI 1 "s_register_operand")
@@ -4879,6 +4953,13 @@ (define_insn "neon_vst3_lane<mode>"
 }
 [(set_attr "neon_type" "neon_vst3_vst4_lane")])
 
+(define_expand "vec_load_lanesoi<mode>"
+  [(set (match_operand:OI 0 "s_register_operand")
+        (unspec:OI [(match_operand:OI 1 "neon_struct_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+		   UNSPEC_VLD4))]
+  "TARGET_NEON")
+
 (define_insn "neon_vld4<mode>"
   [(set (match_operand:OI 0 "s_register_operand" "=w")
         (unspec:OI [(match_operand:OI 1 "neon_struct_operand" "Um")
@@ -4897,6 +4978,16 @@ (define_insn "neon_vld4<mode>"
                     (const_string "neon_vld3_vld4")))]
 )
 
+(define_expand "vec_load_lanesxi<mode>"
+  [(match_operand:XI 0 "s_register_operand")
+   (match_operand:XI 1 "neon_struct_operand")
+   (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+  "TARGET_NEON"
+{
+  emit_insn (gen_neon_vld4<mode> (operands[0], operands[1]));
+  DONE;
+})
+
 (define_expand "neon_vld4<mode>"
   [(match_operand:XI 0 "s_register_operand")
    (match_operand:XI 1 "neon_struct_operand")
@@ -5043,6 +5134,13 @@ (define_insn "neon_vld4_dup<mode>"
                     (const_string "neon_vld1_1_2_regs")))]
 )
 
+(define_expand "vec_store_lanesoi<mode>"
+  [(set (match_operand:OI 0 "neon_struct_operand")
+	(unspec:OI [(match_operand:OI 1 "s_register_operand")
+                    (unspec:VDX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+                   UNSPEC_VST4))]
+  "TARGET_NEON")
+
 (define_insn "neon_vst4<mode>"
   [(set (match_operand:OI 0 "neon_struct_operand" "=Um")
         (unspec:OI [(match_operand:OI 1 "s_register_operand" "w")
@@ -5061,6 +5159,16 @@ (define_insn "neon_vst4<mode>"
                     (const_string "neon_vst2_4_regs_vst3_vst4")))]
 )
 
+(define_expand "vec_store_lanesxi<mode>"
+  [(match_operand:XI 0 "neon_struct_operand")
+   (match_operand:XI 1 "s_register_operand")
+   (unspec:VQ [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+  "TARGET_NEON"
+{
+  emit_insn (gen_neon_vst4<mode> (operands[0], operands[1]));
+  DONE;
+})
+
 (define_expand "neon_vst4<mode>"
   [(match_operand:XI 0 "neon_struct_operand")
    (match_operand:XI 1 "s_register_operand")

Follow-Ups:
- Re: [6/9] NEON vec_load_lanes and vec_store_lanes patterns
  - From: Richard Earnshaw

References:
- [0/9] Direct support for loads and stores of interleaved vectors
  - From: Richard Sandiford

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