From 19985e9a8dccc69ef66ad425d74c6dba354b88ad Mon Sep 17 00:00:00 2001
From: Colin LeMahieu <colinl@codeaurora.org>
Date: Fri, 5 Dec 2014 20:07:19 +0000
Subject: [PATCH] [Hexagon] Adding tfrih/l instructions.

llvm-svn: 223506
---
 llvm/lib/Target/Hexagon/HexagonInstrInfo.td     | 22 ++++++++++++++++++++++
 llvm/test/MC/Disassembler/Hexagon/alu32_alu.txt |  4 ++++
 2 files changed, 26 insertions(+)

diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.td b/llvm/lib/Target/Hexagon/HexagonInstrInfo.td
index aeaaf53..08d1d6c 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.td
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.td
@@ -391,6 +391,28 @@ multiclass ALU32_Pbase<string mnemonic, RegisterClass RC, bit isNot,
             []>;
 }
 
+let hasSideEffects = 0, hasNewValue = 1 in
+class T_tfr16<bit isHi>
+  : ALU32Inst <(outs IntRegs:$Rx), (ins IntRegs:$src1, u16Imm:$u16),
+  "$Rx"#!if(isHi, ".h", ".l")#" = #$u16",
+  [], "$src1 = $Rx" > {
+    bits<5> Rx;
+    bits<16> u16;
+
+    let IClass = 0b0111;
+    let Inst{27-26} = 0b00;
+    let Inst{25-24} = !if(isHi, 0b10, 0b01);
+    let Inst{23-22} = u16{15-14};
+    let Inst{21}    = 0b1;
+    let Inst{20-16} = Rx;
+    let Inst{13-0}  = u16{13-0};
+  }
+
+let isCodeGenOnly = 0 in {
+def A2_tfril: T_tfr16<0>;
+def A2_tfrih: T_tfr16<1>;
+}
+
 multiclass ALU32_Pred<string mnemonic, RegisterClass RC, bit PredNot> {
   let isPredicatedFalse = PredNot in {
     defm _c#NAME : ALU32_Pbase<mnemonic, RC, PredNot, 0>;
diff --git a/llvm/test/MC/Disassembler/Hexagon/alu32_alu.txt b/llvm/test/MC/Disassembler/Hexagon/alu32_alu.txt
index c92b993..10ee34f 100644
--- a/llvm/test/MC/Disassembler/Hexagon/alu32_alu.txt
+++ b/llvm/test/MC/Disassembler/Hexagon/alu32_alu.txt
@@ -16,5 +16,9 @@
 # CHECK: r17 = sub(r31, r21)
 0x11 0xc0 0xbf 0x70
 # CHECK: r17 = sxtb(r31)
+0x15 0xc0 0x31 0x72
+# CHECK: r17.h = #21
+0x15 0xc0 0x31 0x71
+# CHECK: r17.l = #21
 0x11 0xc0 0xd5 0x70
 # CHECK: r17 = zxth(r21)
-- 
2.7.4