--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/Target/X86/X86LegalizerInfo.cpp	Fri Oct 27 17:07:41 2017 +0900
@@ -0,0 +1,344 @@
+//===- X86LegalizerInfo.cpp --------------------------------------*- C++ -*-==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file implements the targeting of the Machinelegalizer class for X86.
+/// \todo This should be generated by TableGen.
+//===----------------------------------------------------------------------===//
+
+#include "X86LegalizerInfo.h"
+#include "X86Subtarget.h"
+#include "X86TargetMachine.h"
+#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Type.h"
+#include "llvm/Target/TargetOpcodes.h"
+
+using namespace llvm;
+using namespace TargetOpcode;
+
+X86LegalizerInfo::X86LegalizerInfo(const X86Subtarget &STI,
+                                   const X86TargetMachine &TM)
+    : Subtarget(STI), TM(TM) {
+
+  setLegalizerInfo32bit();
+  setLegalizerInfo64bit();
+  setLegalizerInfoSSE1();
+  setLegalizerInfoSSE2();
+  setLegalizerInfoSSE41();
+  setLegalizerInfoAVX();
+  setLegalizerInfoAVX2();
+  setLegalizerInfoAVX512();
+  setLegalizerInfoAVX512DQ();
+  setLegalizerInfoAVX512BW();
+
+  computeTables();
+}
+
+void X86LegalizerInfo::setLegalizerInfo32bit() {
+
+  const LLT p0 = LLT::pointer(0, TM.getPointerSize() * 8);
+  const LLT s1 = LLT::scalar(1);
+  const LLT s8 = LLT::scalar(8);
+  const LLT s16 = LLT::scalar(16);
+  const LLT s32 = LLT::scalar(32);
+  const LLT s64 = LLT::scalar(64);
+
+  for (auto Ty : {p0, s1, s8, s16, s32})
+    setAction({G_IMPLICIT_DEF, Ty}, Legal);
+
+  for (auto Ty : {s8, s16, s32, p0})
+    setAction({G_PHI, Ty}, Legal);
+
+  setAction({G_PHI, s1}, WidenScalar);
+
+  for (unsigned BinOp : {G_ADD, G_SUB, G_MUL, G_AND, G_OR, G_XOR}) {
+    for (auto Ty : {s8, s16, s32})
+      setAction({BinOp, Ty}, Legal);
+
+    setAction({BinOp, s1}, WidenScalar);
+  }
+
+  for (unsigned Op : {G_UADDE}) {
+    setAction({Op, s32}, Legal);
+    setAction({Op, 1, s1}, Legal);
+  }
+
+  for (unsigned MemOp : {G_LOAD, G_STORE}) {
+    for (auto Ty : {s8, s16, s32, p0})
+      setAction({MemOp, Ty}, Legal);
+
+    setAction({MemOp, s1}, WidenScalar);
+    // And everything's fine in addrspace 0.
+    setAction({MemOp, 1, p0}, Legal);
+  }
+
+  // Pointer-handling
+  setAction({G_FRAME_INDEX, p0}, Legal);
+  setAction({G_GLOBAL_VALUE, p0}, Legal);
+
+  setAction({G_GEP, p0}, Legal);
+  setAction({G_GEP, 1, s32}, Legal);
+
+  for (auto Ty : {s1, s8, s16})
+    setAction({G_GEP, 1, Ty}, WidenScalar);
+
+  // Control-flow
+  setAction({G_BRCOND, s1}, Legal);
+
+  // Constants
+  for (auto Ty : {s8, s16, s32, p0})
+    setAction({TargetOpcode::G_CONSTANT, Ty}, Legal);
+
+  setAction({TargetOpcode::G_CONSTANT, s1}, WidenScalar);
+  setAction({TargetOpcode::G_CONSTANT, s64}, NarrowScalar);
+
+  // Extensions
+  for (auto Ty : {s8, s16, s32}) {
+    setAction({G_ZEXT, Ty}, Legal);
+    setAction({G_SEXT, Ty}, Legal);
+    setAction({G_ANYEXT, Ty}, Legal);
+  }
+
+  for (auto Ty : {s1, s8, s16}) {
+    setAction({G_ZEXT, 1, Ty}, Legal);
+    setAction({G_SEXT, 1, Ty}, Legal);
+    setAction({G_ANYEXT, 1, Ty}, Legal);
+  }
+
+  // Comparison
+  setAction({G_ICMP, s1}, Legal);
+
+  for (auto Ty : {s8, s16, s32, p0})
+    setAction({G_ICMP, 1, Ty}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfo64bit() {
+
+  if (!Subtarget.is64Bit())
+    return;
+
+  const LLT s32 = LLT::scalar(32);
+  const LLT s64 = LLT::scalar(64);
+
+  setAction({G_IMPLICIT_DEF, s64}, Legal);
+
+  setAction({G_PHI, s64}, Legal);
+
+  for (unsigned BinOp : {G_ADD, G_SUB, G_MUL, G_AND, G_OR, G_XOR})
+    setAction({BinOp, s64}, Legal);
+
+  for (unsigned MemOp : {G_LOAD, G_STORE})
+    setAction({MemOp, s64}, Legal);
+
+  // Pointer-handling
+  setAction({G_GEP, 1, s64}, Legal);
+
+  // Constants
+  setAction({TargetOpcode::G_CONSTANT, s64}, Legal);
+
+  // Extensions
+  for (unsigned extOp : {G_ZEXT, G_SEXT, G_ANYEXT}) {
+    setAction({extOp, s64}, Legal);
+    setAction({extOp, 1, s32}, Legal);
+  }
+
+  // Comparison
+  setAction({G_ICMP, 1, s64}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoSSE1() {
+  if (!Subtarget.hasSSE1())
+    return;
+
+  const LLT s32 = LLT::scalar(32);
+  const LLT v4s32 = LLT::vector(4, 32);
+  const LLT v2s64 = LLT::vector(2, 64);
+
+  for (unsigned BinOp : {G_FADD, G_FSUB, G_FMUL, G_FDIV})
+    for (auto Ty : {s32, v4s32})
+      setAction({BinOp, Ty}, Legal);
+
+  for (unsigned MemOp : {G_LOAD, G_STORE})
+    for (auto Ty : {v4s32, v2s64})
+      setAction({MemOp, Ty}, Legal);
+
+  // Constants
+  setAction({TargetOpcode::G_FCONSTANT, s32}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoSSE2() {
+  if (!Subtarget.hasSSE2())
+    return;
+
+  const LLT s32 = LLT::scalar(32);
+  const LLT s64 = LLT::scalar(64);
+  const LLT v16s8 = LLT::vector(16, 8);
+  const LLT v8s16 = LLT::vector(8, 16);
+  const LLT v4s32 = LLT::vector(4, 32);
+  const LLT v2s64 = LLT::vector(2, 64);
+
+  for (unsigned BinOp : {G_FADD, G_FSUB, G_FMUL, G_FDIV})
+    for (auto Ty : {s64, v2s64})
+      setAction({BinOp, Ty}, Legal);
+
+  for (unsigned BinOp : {G_ADD, G_SUB})
+    for (auto Ty : {v16s8, v8s16, v4s32, v2s64})
+      setAction({BinOp, Ty}, Legal);
+
+  setAction({G_MUL, v8s16}, Legal);
+
+  setAction({G_FPEXT, s64}, Legal);
+  setAction({G_FPEXT, 1, s32}, Legal);
+
+  // Constants
+  setAction({TargetOpcode::G_FCONSTANT, s64}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoSSE41() {
+  if (!Subtarget.hasSSE41())
+    return;
+
+  const LLT v4s32 = LLT::vector(4, 32);
+
+  setAction({G_MUL, v4s32}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoAVX() {
+  if (!Subtarget.hasAVX())
+    return;
+
+  const LLT v16s8 = LLT::vector(16, 8);
+  const LLT v8s16 = LLT::vector(8, 16);
+  const LLT v4s32 = LLT::vector(4, 32);
+  const LLT v2s64 = LLT::vector(2, 64);
+
+  const LLT v32s8 = LLT::vector(32, 8);
+  const LLT v16s16 = LLT::vector(16, 16);
+  const LLT v8s32 = LLT::vector(8, 32);
+  const LLT v4s64 = LLT::vector(4, 64);
+
+  for (unsigned MemOp : {G_LOAD, G_STORE})
+    for (auto Ty : {v8s32, v4s64})
+      setAction({MemOp, Ty}, Legal);
+
+  for (auto Ty : {v32s8, v16s16, v8s32, v4s64}) {
+    setAction({G_INSERT, Ty}, Legal);
+    setAction({G_EXTRACT, 1, Ty}, Legal);
+  }
+  for (auto Ty : {v16s8, v8s16, v4s32, v2s64}) {
+    setAction({G_INSERT, 1, Ty}, Legal);
+    setAction({G_EXTRACT, Ty}, Legal);
+  }
+}
+
+void X86LegalizerInfo::setLegalizerInfoAVX2() {
+  if (!Subtarget.hasAVX2())
+    return;
+
+  const LLT v32s8 = LLT::vector(32, 8);
+  const LLT v16s16 = LLT::vector(16, 16);
+  const LLT v8s32 = LLT::vector(8, 32);
+  const LLT v4s64 = LLT::vector(4, 64);
+
+  for (unsigned BinOp : {G_ADD, G_SUB})
+    for (auto Ty : {v32s8, v16s16, v8s32, v4s64})
+      setAction({BinOp, Ty}, Legal);
+
+  for (auto Ty : {v16s16, v8s32})
+    setAction({G_MUL, Ty}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoAVX512() {
+  if (!Subtarget.hasAVX512())
+    return;
+
+  const LLT v16s8 = LLT::vector(16, 8);
+  const LLT v8s16 = LLT::vector(8, 16);
+  const LLT v4s32 = LLT::vector(4, 32);
+  const LLT v2s64 = LLT::vector(2, 64);
+
+  const LLT v32s8 = LLT::vector(32, 8);
+  const LLT v16s16 = LLT::vector(16, 16);
+  const LLT v8s32 = LLT::vector(8, 32);
+  const LLT v4s64 = LLT::vector(4, 64);
+
+  const LLT v64s8 = LLT::vector(64, 8);
+  const LLT v32s16 = LLT::vector(32, 16);
+  const LLT v16s32 = LLT::vector(16, 32);
+  const LLT v8s64 = LLT::vector(8, 64);
+
+  for (unsigned BinOp : {G_ADD, G_SUB})
+    for (auto Ty : {v16s32, v8s64})
+      setAction({BinOp, Ty}, Legal);
+
+  setAction({G_MUL, v16s32}, Legal);
+
+  for (unsigned MemOp : {G_LOAD, G_STORE})
+    for (auto Ty : {v16s32, v8s64})
+      setAction({MemOp, Ty}, Legal);
+
+  for (auto Ty : {v64s8, v32s16, v16s32, v8s64}) {
+    setAction({G_INSERT, Ty}, Legal);
+    setAction({G_EXTRACT, 1, Ty}, Legal);
+  }
+  for (auto Ty : {v32s8, v16s16, v8s32, v4s64, v16s8, v8s16, v4s32, v2s64}) {
+    setAction({G_INSERT, 1, Ty}, Legal);
+    setAction({G_EXTRACT, Ty}, Legal);
+  }
+
+  /************ VLX *******************/
+  if (!Subtarget.hasVLX())
+    return;
+
+  for (auto Ty : {v4s32, v8s32})
+    setAction({G_MUL, Ty}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoAVX512DQ() {
+  if (!(Subtarget.hasAVX512() && Subtarget.hasDQI()))
+    return;
+
+  const LLT v8s64 = LLT::vector(8, 64);
+
+  setAction({G_MUL, v8s64}, Legal);
+
+  /************ VLX *******************/
+  if (!Subtarget.hasVLX())
+    return;
+
+  const LLT v2s64 = LLT::vector(2, 64);
+  const LLT v4s64 = LLT::vector(4, 64);
+
+  for (auto Ty : {v2s64, v4s64})
+    setAction({G_MUL, Ty}, Legal);
+}
+
+void X86LegalizerInfo::setLegalizerInfoAVX512BW() {
+  if (!(Subtarget.hasAVX512() && Subtarget.hasBWI()))
+    return;
+
+  const LLT v64s8 = LLT::vector(64, 8);
+  const LLT v32s16 = LLT::vector(32, 16);
+
+  for (unsigned BinOp : {G_ADD, G_SUB})
+    for (auto Ty : {v64s8, v32s16})
+      setAction({BinOp, Ty}, Legal);
+
+  setAction({G_MUL, v32s16}, Legal);
+
+  /************ VLX *******************/
+  if (!Subtarget.hasVLX())
+    return;
+
+  const LLT v8s16 = LLT::vector(8, 16);
+  const LLT v16s16 = LLT::vector(16, 16);
+
+  for (auto Ty : {v8s16, v16s16})
+    setAction({G_MUL, Ty}, Legal);
+}