From 94269db8bacad503d6cf6472c610990bee665a14 Mon Sep 17 00:00:00 2001
From: Colin LeMahieu <colinl@codeaurora.org>
Date: Wed, 21 Jan 2015 18:13:15 +0000
Subject: [Hexagon] Converting multiply and accumulate with immediate
 intrinsics to patterns.

llvm-svn: 226681
---
 llvm/lib/Target/Hexagon/HexagonIntrinsics.td | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/Hexagon/HexagonIntrinsics.td b/llvm/lib/Target/Hexagon/HexagonIntrinsics.td
index 25618c5f3cb..f58e7655ed1 100644
--- a/llvm/lib/Target/Hexagon/HexagonIntrinsics.td
+++ b/llvm/lib/Target/Hexagon/HexagonIntrinsics.td
@@ -53,6 +53,10 @@ class T_QIR_pat <InstHexagon MI, Intrinsic IntID, PatFrag ImmPred>
   : Pat <(IntID (i32 PredRegs:$Ps), ImmPred:$Is, I32:$Rs),
          (MI PredRegs:$Ps, ImmPred:$Is, I32:$Rs)>;
 
+class T_RRI_pat <InstHexagon MI, Intrinsic IntID>
+  : Pat <(IntID I32:$Rs, I32:$Rt, imm:$Iu),
+         (MI I32:$Rs, I32:$Rt, imm:$Iu)>;
+
 class T_RRR_pat <InstHexagon MI, Intrinsic IntID>
   : Pat <(IntID I32:$Rs, I32:$Rt, I32:$Ru),
          (MI I32:$Rs, I32:$Rt, I32:$Ru)>;
@@ -333,6 +337,23 @@ def: T_PP_pat<A2_xorp,     int_hexagon_A2_xorp>;
 def: T_PP_pat<S2_parityp,  int_hexagon_S2_parityp>;
 def: T_RR_pat<S2_packhl,   int_hexagon_S2_packhl>;
 
+// Multiply 32x32 and use lower result
+def : T_RRI_pat <M2_macsip, int_hexagon_M2_macsip>;
+def : T_RRI_pat <M2_macsin, int_hexagon_M2_macsin>;
+def : T_RRR_pat <M2_maci, int_hexagon_M2_maci>;
+
+// Subtract and accumulate
+def : T_RRR_pat <M2_subacc, int_hexagon_M2_subacc>;
+
+// Add and accumulate
+def : T_RRR_pat <M2_acci,   int_hexagon_M2_acci>;
+def : T_RRR_pat <M2_nacci,  int_hexagon_M2_nacci>;
+def : T_RRI_pat <M2_accii,  int_hexagon_M2_accii>;
+def : T_RRI_pat <M2_naccii, int_hexagon_M2_naccii>;
+
+// XOR and XOR with destination
+def : T_RRR_pat <M2_xor_xacc, int_hexagon_M2_xor_xacc>;
+
 //
 // ALU 32 types.
 //
-- 
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