From d7360900a8d6a2616400bd35620cca481ef2b718 Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Fri, 2 May 2014 14:54:27 +0000
Subject: AArch64/ARM64: add patterns for post-indexed ST1 ops.

llvm-svn: 207840
---
 llvm/lib/Target/ARM64/ARM64InstrInfo.td | 47 +++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/ARM64/ARM64InstrInfo.td b/llvm/lib/Target/ARM64/ARM64InstrInfo.td
index d2f8452a9fb..51fe207ced8 100644
--- a/llvm/lib/Target/ARM64/ARM64InstrInfo.td
+++ b/llvm/lib/Target/ARM64/ARM64InstrInfo.td
@@ -4416,6 +4416,53 @@ def : St1Lane64Pat<truncstorei16, VectorIndexH, v4i16, i32, ST1i16>;
 def : St1Lane64Pat<store,         VectorIndexS, v2i32, i32, ST1i32>;
 def : St1Lane64Pat<store,         VectorIndexS, v2f32, f32, ST1i32>;
 
+multiclass St1LanePost64Pat<SDPatternOperator scalar_store, Operand VecIndex,
+                             ValueType VTy, ValueType STy, Instruction ST1,
+                             int offset> {
+  def : Pat<(scalar_store
+              (STy (vector_extract (VTy VecListOne64:$Vt), VecIndex:$idx)),
+              am_simdnoindex:$vaddr, offset),
+        (ST1 (SUBREG_TO_REG (i32 0), VecListOne64:$Vt, dsub),
+             VecIndex:$idx, am_simdnoindex:$vaddr, XZR)>;
+
+  def : Pat<(scalar_store
+              (STy (vector_extract (VTy VecListOne64:$Vt), VecIndex:$idx)),
+              am_simdnoindex:$vaddr, GPR64:$Rm),
+        (ST1 (SUBREG_TO_REG (i32 0), VecListOne64:$Vt, dsub),
+             VecIndex:$idx, am_simdnoindex:$vaddr, $Rm)>;
+}
+
+defm : St1LanePost64Pat<post_truncsti8, VectorIndexB, v8i8, i32, ST1i8_POST, 1>;
+defm : St1LanePost64Pat<post_truncsti16, VectorIndexH, v4i16, i32, ST1i16_POST,
+                        2>;
+defm : St1LanePost64Pat<post_store, VectorIndexS, v2i32, i32, ST1i32_POST, 4>;
+defm : St1LanePost64Pat<post_store, VectorIndexS, v2f32, f32, ST1i32_POST, 4>;
+defm : St1LanePost64Pat<post_store, VectorIndexD, v1i64, i64, ST1i64_POST, 8>;
+defm : St1LanePost64Pat<post_store, VectorIndexD, v1f64, f64, ST1i64_POST, 8>;
+
+multiclass St1LanePost128Pat<SDPatternOperator scalar_store, Operand VecIndex,
+                             ValueType VTy, ValueType STy, Instruction ST1,
+                             int offset> {
+  def : Pat<(scalar_store
+              (STy (vector_extract (VTy VecListOne128:$Vt), VecIndex:$idx)),
+              am_simdnoindex:$vaddr, offset),
+        (ST1 VecListOne128:$Vt, VecIndex:$idx, am_simdnoindex:$vaddr, XZR)>;
+
+  def : Pat<(scalar_store
+              (STy (vector_extract (VTy VecListOne128:$Vt), VecIndex:$idx)),
+              am_simdnoindex:$vaddr, GPR64:$Rm),
+        (ST1 VecListOne128:$Vt, VecIndex:$idx, am_simdnoindex:$vaddr, $Rm)>;
+}
+
+defm : St1LanePost128Pat<post_truncsti8, VectorIndexB, v16i8, i32, ST1i8_POST,
+                         1>;
+defm : St1LanePost128Pat<post_truncsti16, VectorIndexH, v8i16, i32, ST1i16_POST,
+                         2>;
+defm : St1LanePost128Pat<post_store, VectorIndexS, v4i32, i32, ST1i32_POST, 4>;
+defm : St1LanePost128Pat<post_store, VectorIndexS, v4f32, f32, ST1i32_POST, 4>;
+defm : St1LanePost128Pat<post_store, VectorIndexD, v2i64, i64, ST1i64_POST, 8>;
+defm : St1LanePost128Pat<post_store, VectorIndexD, v2f64, f64, ST1i64_POST, 8>;
+
 let mayStore = 1, neverHasSideEffects = 1 in {
 defm ST2 : SIMDStSingleB<1, 0b000,       "st2", VecListTwob,   GPR64pi2>;
 defm ST2 : SIMDStSingleH<1, 0b010, 0,    "st2", VecListTwoh,   GPR64pi4>;
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