From c3449d705bb2723a7f6451ce5319b53f0ca8d3e0 Mon Sep 17 00:00:00 2001
From: Colin LeMahieu <colinl@codeaurora.org>
Date: Mon, 15 Dec 2014 20:01:59 +0000
Subject: [PATCH] [Hexagon] Adding multiply with rnd/sat/rndsat

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224265 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Hexagon/HexagonInstrInfo.td     | 46 ++++++++++++++++++++++
 test/MC/Disassembler/Hexagon/xtype_mpy.txt | 32 +++++++++++++++
 2 files changed, 78 insertions(+)

diff --git a/lib/Target/Hexagon/HexagonInstrInfo.td b/lib/Target/Hexagon/HexagonInstrInfo.td
index ab64455c652..98a210f04b6 100644
--- a/lib/Target/Hexagon/HexagonInstrInfo.td
+++ b/lib/Target/Hexagon/HexagonInstrInfo.td
@@ -1783,6 +1783,52 @@ def M2_mpy_hh_s1: T_M2_mpy<0b11, 0, 0, 1, 0>;
 def M2_mpy_hh_s0: T_M2_mpy<0b11, 0, 0, 0, 0>;
 }
 
+//Rd=mpyu(Rs.[H|L],Rt.[H|L])[:<<1]
+let isCodeGenOnly = 0 in {
+def M2_mpyu_ll_s1: T_M2_mpy<0b00, 0, 0, 1, 1>;
+def M2_mpyu_ll_s0: T_M2_mpy<0b00, 0, 0, 0, 1>;
+def M2_mpyu_lh_s1: T_M2_mpy<0b01, 0, 0, 1, 1>;
+def M2_mpyu_lh_s0: T_M2_mpy<0b01, 0, 0, 0, 1>;
+def M2_mpyu_hl_s1: T_M2_mpy<0b10, 0, 0, 1, 1>;
+def M2_mpyu_hl_s0: T_M2_mpy<0b10, 0, 0, 0, 1>;
+def M2_mpyu_hh_s1: T_M2_mpy<0b11, 0, 0, 1, 1>;
+def M2_mpyu_hh_s0: T_M2_mpy<0b11, 0, 0, 0, 1>;
+}
+
+//Rd=mpy(Rs.[H|L],Rt.[H|L])[:<<1]:rnd
+let isCodeGenOnly = 0 in {
+def M2_mpy_rnd_ll_s1: T_M2_mpy <0b00, 0, 1, 1, 0>;
+def M2_mpy_rnd_ll_s0: T_M2_mpy <0b00, 0, 1, 0, 0>;
+def M2_mpy_rnd_lh_s1: T_M2_mpy <0b01, 0, 1, 1, 0>;
+def M2_mpy_rnd_lh_s0: T_M2_mpy <0b01, 0, 1, 0, 0>;
+def M2_mpy_rnd_hl_s1: T_M2_mpy <0b10, 0, 1, 1, 0>;
+def M2_mpy_rnd_hl_s0: T_M2_mpy <0b10, 0, 1, 0, 0>;
+def M2_mpy_rnd_hh_s1: T_M2_mpy <0b11, 0, 1, 1, 0>;
+def M2_mpy_rnd_hh_s0: T_M2_mpy <0b11, 0, 1, 0, 0>;
+}
+
+//Rd=mpy(Rs.[H|L],Rt.[H|L])[:<<1][:sat]
+//Rd=mpy(Rs.[H|L],Rt.[H|L])[:<<1][:rnd][:sat]
+let Defs = [USR_OVF], isCodeGenOnly = 0 in {
+  def M2_mpy_sat_ll_s1: T_M2_mpy <0b00, 1, 0, 1, 0>;
+  def M2_mpy_sat_ll_s0: T_M2_mpy <0b00, 1, 0, 0, 0>;
+  def M2_mpy_sat_lh_s1: T_M2_mpy <0b01, 1, 0, 1, 0>;
+  def M2_mpy_sat_lh_s0: T_M2_mpy <0b01, 1, 0, 0, 0>;
+  def M2_mpy_sat_hl_s1: T_M2_mpy <0b10, 1, 0, 1, 0>;
+  def M2_mpy_sat_hl_s0: T_M2_mpy <0b10, 1, 0, 0, 0>;
+  def M2_mpy_sat_hh_s1: T_M2_mpy <0b11, 1, 0, 1, 0>;
+  def M2_mpy_sat_hh_s0: T_M2_mpy <0b11, 1, 0, 0, 0>;
+
+  def M2_mpy_sat_rnd_ll_s1: T_M2_mpy <0b00, 1, 1, 1, 0>;
+  def M2_mpy_sat_rnd_ll_s0: T_M2_mpy <0b00, 1, 1, 0, 0>;
+  def M2_mpy_sat_rnd_lh_s1: T_M2_mpy <0b01, 1, 1, 1, 0>;
+  def M2_mpy_sat_rnd_lh_s0: T_M2_mpy <0b01, 1, 1, 0, 0>;
+  def M2_mpy_sat_rnd_hl_s1: T_M2_mpy <0b10, 1, 1, 1, 0>;
+  def M2_mpy_sat_rnd_hl_s0: T_M2_mpy <0b10, 1, 1, 0, 0>;
+  def M2_mpy_sat_rnd_hh_s1: T_M2_mpy <0b11, 1, 1, 1, 0>;
+  def M2_mpy_sat_rnd_hh_s0: T_M2_mpy <0b11, 1, 1, 0, 0>;
+}
+
 // Multiply and use lower result.
 // Rd=+mpyi(Rs,#u8)
 let isExtendable = 1, opExtendable = 2, isExtentSigned = 0, opExtentBits = 8 in
diff --git a/test/MC/Disassembler/Hexagon/xtype_mpy.txt b/test/MC/Disassembler/Hexagon/xtype_mpy.txt
index 0a42cdd0255..a410b533894 100644
--- a/test/MC/Disassembler/Hexagon/xtype_mpy.txt
+++ b/test/MC/Disassembler/Hexagon/xtype_mpy.txt
@@ -8,3 +8,35 @@
 # CHECK: r17 = mpy(r21.h, r31.l):<<1
 0x71 0xdf 0x95 0xec
 # CHECK: r17 = mpy(r21.h, r31.h):<<1
+0x91 0xdf 0x95 0xec
+# CHECK: r17 = mpy(r21.l, r31.l):<<1:sat
+0xb1 0xdf 0x95 0xec
+# CHECK: r17 = mpy(r21.l, r31.h):<<1:sat
+0xd1 0xdf 0x95 0xec
+# CHECK: r17 = mpy(r21.h, r31.l):<<1:sat
+0xf1 0xdf 0x95 0xec
+# CHECK: r17 = mpy(r21.h, r31.h):<<1:sat
+0x11 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.l, r31.l):<<1:rnd
+0x31 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.l, r31.h):<<1:rnd
+0x51 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.h, r31.l):<<1:rnd
+0x71 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.h, r31.h):<<1:rnd
+0x91 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.l, r31.l):<<1:rnd:sat
+0xb1 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.l, r31.h):<<1:rnd:sat
+0xd1 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.h, r31.l):<<1:rnd:sat
+0xf1 0xdf 0xb5 0xec
+# CHECK: r17 = mpy(r21.h, r31.h):<<1:rnd:sat
+0x11 0xdf 0xd5 0xec
+# CHECK: r17 = mpyu(r21.l, r31.l):<<1
+0x31 0xdf 0xd5 0xec
+# CHECK: r17 = mpyu(r21.l, r31.h):<<1
+0x51 0xdf 0xd5 0xec
+# CHECK: r17 = mpyu(r21.h, r31.l):<<1
+0x71 0xdf 0xd5 0xec
+# CHECK: r17 = mpyu(r21.h, r31.h):<<1
-- 
2.40.0