From 03a7bf5ab51e5871927595ed1f9d63e34ed19dc5 Mon Sep 17 00:00:00 2001
From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 10 Jun 2014 14:26:20 +0000
Subject: [PATCH] [AArch64] Add a big-endian lane flip at expand-time in
 saturating math patterns.

	* config/aarch64/aarch64-simd.md (aarch64_sqdmulh_lane<mode>):
	New expander.
	(aarch64_sqrdmulh_lane<mode>): Likewise.
	(aarch64_sq<r>dmulh_lane<mode>): Rename to...
	(aarch64_sq<r>dmulh_lane<mode>_internal): ...this.
	(aarch64_sqdmulh_laneq<mode>): New expander.
	(aarch64_sqrdmulh_laneq<mode>): Likewise.
	(aarch64_sq<r>dmulh_laneq<mode>): Rename to...
	(aarch64_sq<r>dmulh_laneq<mode>_internal): ...this.
	(aarch64_sqdmulh_lane<mode>): New expander.
	(aarch64_sqrdmulh_lane<mode>): Likewise.
	(aarch64_sq<r>dmulh_lane<mode>): Rename to...
	(aarch64_sq<r>dmulh_lane<mode>_internal): ...this.
	(aarch64_sqdmlal_lane<mode>): Add lane flip for big-endian.
	(aarch64_sqdmlal_laneq<mode>): Likewise.
	(aarch64_sqdmlsl_lane<mode>): Likewise.
	(aarch64_sqdmlsl_laneq<mode>): Likewise.
	(aarch64_sqdmlal2_lane<mode>): Likewise.
	(aarch64_sqdmlal2_laneq<mode>): Likewise.
	(aarch64_sqdmlsl2_lane<mode>): Likewise.
	(aarch64_sqdmlsl2_laneq<mode>): Likewise.
	(aarch64_sqdmull_lane<mode>): Likewise.
	(aarch64_sqdmull_laneq<mode>): Likewise.
	(aarch64_sqdmull2_lane<mode>): Likewise.
	(aarch64_sqdmull2_laneq<mode>): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211414 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog                      |  28 +++++++++
 gcc/config/aarch64/aarch64-simd.md | 122 +++++++++++++++++++++++++++++++++++--
 2 files changed, 145 insertions(+), 5 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 180d1c8..7b17baa 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,31 @@
+2014-06-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-simd.md (aarch64_sqdmulh_lane<mode>):
+	New expander.
+	(aarch64_sqrdmulh_lane<mode>): Likewise.
+	(aarch64_sq<r>dmulh_lane<mode>): Rename to...
+	(aarch64_sq<r>dmulh_lane<mode>_internal): ...this.
+	(aarch64_sqdmulh_laneq<mode>): New expander.
+	(aarch64_sqrdmulh_laneq<mode>): Likewise.
+	(aarch64_sq<r>dmulh_laneq<mode>): Rename to...
+	(aarch64_sq<r>dmulh_laneq<mode>_internal): ...this.
+	(aarch64_sqdmulh_lane<mode>): New expander.
+	(aarch64_sqrdmulh_lane<mode>): Likewise.
+	(aarch64_sq<r>dmulh_lane<mode>): Rename to...
+	(aarch64_sq<r>dmulh_lane<mode>_internal): ...this.
+	(aarch64_sqdmlal_lane<mode>): Add lane flip for big-endian.
+	(aarch64_sqdmlal_laneq<mode>): Likewise.
+	(aarch64_sqdmlsl_lane<mode>): Likewise.
+	(aarch64_sqdmlsl_laneq<mode>): Likewise.
+	(aarch64_sqdmlal2_lane<mode>): Likewise.
+	(aarch64_sqdmlal2_laneq<mode>): Likewise.
+	(aarch64_sqdmlsl2_lane<mode>): Likewise.
+	(aarch64_sqdmlsl2_laneq<mode>): Likewise.
+	(aarch64_sqdmull_lane<mode>): Likewise.
+	(aarch64_sqdmull_laneq<mode>): Likewise.
+	(aarch64_sqdmull2_lane<mode>): Likewise.
+	(aarch64_sqdmull2_laneq<mode>): Likewise.
+
 2014-06-10  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/61438
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 8b3cfa1..8c840f5 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -2650,7 +2650,41 @@
 
 ;; sq<r>dmulh_lane
 
-(define_insn "aarch64_sq<r>dmulh_lane<mode>"
+(define_expand "aarch64_sqdmulh_lane<mode>"
+  [(match_operand:VDQHS 0 "register_operand" "")
+   (match_operand:VDQHS 1 "register_operand" "")
+   (match_operand:<VCOND> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+     aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCOND>mode));
+     operands[3] = GEN_INT (ENDIAN_LANE_N (<VCOND>mode, INTVAL (operands[3])));
+     emit_insn (gen_aarch64_sqdmulh_lane<mode>_internal (operands[0],
+                                                         operands[1],
+                                                         operands[2],
+                                                         operands[3]));
+     DONE;
+  }
+)
+
+(define_expand "aarch64_sqrdmulh_lane<mode>"
+  [(match_operand:VDQHS 0 "register_operand" "")
+   (match_operand:VDQHS 1 "register_operand" "")
+   (match_operand:<VCOND> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+     aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCOND>mode));
+     operands[3] = GEN_INT (ENDIAN_LANE_N (<VCOND>mode, INTVAL (operands[3])));
+     emit_insn (gen_aarch64_sqrdmulh_lane<mode>_internal (operands[0],
+                                                          operands[1],
+                                                          operands[2],
+                                                          operands[3]));
+     DONE;
+  }
+)
+
+(define_insn "aarch64_sq<r>dmulh_lane<mode>_internal"
   [(set (match_operand:VDQHS 0 "register_operand" "=w")
         (unspec:VDQHS
 	  [(match_operand:VDQHS 1 "register_operand" "w")
@@ -2666,7 +2700,41 @@
   [(set_attr "type" "neon_sat_mul_<Vetype>_scalar<q>")]
 )
 
-(define_insn "aarch64_sq<r>dmulh_laneq<mode>"
+(define_expand "aarch64_sqdmulh_laneq<mode>"
+  [(match_operand:VDQHS 0 "register_operand" "")
+   (match_operand:VDQHS 1 "register_operand" "")
+   (match_operand:<VCONQ> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+     aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
+     operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
+     emit_insn (gen_aarch64_sqdmulh_laneq<mode>_internal (operands[0],
+                                                          operands[1],
+                                                          operands[2],
+                                                          operands[3]));
+     DONE;
+   }
+)
+
+(define_expand "aarch64_sqrdmulh_laneq<mode>"
+  [(match_operand:VDQHS 0 "register_operand" "")
+   (match_operand:VDQHS 1 "register_operand" "")
+   (match_operand:<VCONQ> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+     aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
+     operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
+     emit_insn (gen_aarch64_sqrdmulh_laneq<mode>_internal (operands[0],
+                                                           operands[1],
+                                                           operands[2],
+                                                           operands[3]));
+     DONE;
+   }
+)
+
+(define_insn "aarch64_sq<r>dmulh_laneq<mode>_internal"
   [(set (match_operand:VDQHS 0 "register_operand" "=w")
         (unspec:VDQHS
 	  [(match_operand:VDQHS 1 "register_operand" "w")
@@ -2676,13 +2744,46 @@
 	 VQDMULH))]
   "TARGET_SIMD"
   "*
-   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
    operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
    return \"sq<r>dmulh\\t%0.<Vtype>, %1.<Vtype>, %2.<Vetype>[%3]\";"
   [(set_attr "type" "neon_sat_mul_<Vetype>_scalar<q>")]
 )
 
-(define_insn "aarch64_sq<r>dmulh_lane<mode>"
+(define_expand "aarch64_sqdmulh_lane<mode>"
+  [(match_operand:SD_HSI 0 "register_operand" "")
+   (match_operand:SD_HSI 1 "register_operand" "")
+   (match_operand:<VCONQ> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+    aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
+    operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
+    emit_insn (gen_aarch64_sqdmulh_lane<mode>_internal (operands[0],
+                                                        operands[1],
+                                                        operands[2],
+                                                        operands[3]));
+    DONE;
+  }
+)
+
+(define_expand "aarch64_sqrdmulh_lane<mode>"
+  [(match_operand:SD_HSI 0 "register_operand" "")
+   (match_operand:SD_HSI 1 "register_operand" "")
+   (match_operand:<VCONQ> 2 "register_operand" "")
+   (match_operand:SI 3 "immediate_operand" "")]
+  "TARGET_SIMD"
+  {
+    aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
+    operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
+    emit_insn (gen_aarch64_sqrdmulh_lane<mode>_internal (operands[0],
+                                                         operands[1],
+                                                         operands[2],
+                                                         operands[3]));
+    DONE;
+  }
+)
+
+(define_insn "aarch64_sq<r>dmulh_lane<mode>_internal"
   [(set (match_operand:SD_HSI 0 "register_operand" "=w")
         (unspec:SD_HSI
 	  [(match_operand:SD_HSI 1 "register_operand" "w")
@@ -2692,7 +2793,6 @@
 	 VQDMULH))]
   "TARGET_SIMD"
   "*
-   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCONQ>mode));
    operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
    return \"sq<r>dmulh\\t%<v>0, %<v>1, %2.<v>[%3]\";"
   [(set_attr "type" "neon_sat_mul_<Vetype>_scalar<q>")]
@@ -2774,6 +2874,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<VCON>mode) / 2);
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlal_lane<mode>_internal (operands[0], operands[1],
 						      operands[2], operands[3],
 						      operands[4]));
@@ -2789,6 +2890,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<VCON>mode));
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<VCON>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlal_lane<mode>_internal (operands[0], operands[1],
 						      operands[2], operands[3],
 						      operands[4]));
@@ -2804,6 +2906,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<VCON>mode) / 2);
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<VCON>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlsl_lane<mode>_internal (operands[0], operands[1],
 						      operands[2], operands[3],
 						      operands[4]));
@@ -2819,6 +2922,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<VCON>mode));
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<VCON>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlsl_lane<mode>_internal (operands[0], operands[1],
 						      operands[2], operands[3],
 						      operands[4]));
@@ -2930,6 +3034,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<MODE>mode) / 2);
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlal2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       operands[4], p));
@@ -2946,6 +3051,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<MODE>mode));
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlal2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       operands[4], p));
@@ -2962,6 +3068,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<MODE>mode) / 2);
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlsl2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       operands[4], p));
@@ -2978,6 +3085,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[4], 0, GET_MODE_NUNITS (<MODE>mode));
+  operands[4] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[4])));
   emit_insn (gen_aarch64_sqdmlsl2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       operands[4], p));
@@ -3098,6 +3206,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCON>mode) / 2);
+  operands[3] = GEN_INT (ENDIAN_LANE_N (<VCON>mode, INTVAL (operands[3])));
   emit_insn (gen_aarch64_sqdmull_lane<mode>_internal (operands[0], operands[1],
 						      operands[2], operands[3]));
   DONE;
@@ -3111,6 +3220,7 @@
   "TARGET_SIMD"
 {
   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<VCON>mode));
+  operands[3] = GEN_INT (ENDIAN_LANE_N (<VCONQ>mode, INTVAL (operands[3])));
   emit_insn (gen_aarch64_sqdmull_lane<mode>_internal
 	       (operands[0], operands[1], operands[2], operands[3]));
   DONE;
@@ -3203,6 +3313,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<MODE>mode) / 2);
+  operands[3] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[3])));
   emit_insn (gen_aarch64_sqdmull2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       p));
@@ -3218,6 +3329,7 @@
 {
   rtx p = aarch64_simd_vect_par_cnst_half (<MODE>mode, true);
   aarch64_simd_lane_bounds (operands[3], 0, GET_MODE_NUNITS (<MODE>mode));
+  operands[3] = GEN_INT (ENDIAN_LANE_N (<MODE>mode, INTVAL (operands[3])));
   emit_insn (gen_aarch64_sqdmull2_lane<mode>_internal (operands[0], operands[1],
 						       operands[2], operands[3],
 						       p));
-- 
2.7.4