1 files changed, 155 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp b/contrib/llvm-project/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
new file mode 100644
index 000000000000..e442a81837ed
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Target/Mips/MipsLegalizerInfo.cpp
@@ -0,0 +1,155 @@
+//===- MipsLegalizerInfo.cpp ------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+/// \file
+/// This file implements the targeting of the Machinelegalizer class for Mips.
+/// \todo This should be generated by TableGen.
+//===----------------------------------------------------------------------===//
+
+#include "MipsLegalizerInfo.h"
+#include "MipsTargetMachine.h"
+#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
+
+using namespace llvm;
+
+MipsLegalizerInfo::MipsLegalizerInfo(const MipsSubtarget &ST) {
+  using namespace TargetOpcode;
+
+  const LLT s1 = LLT::scalar(1);
+  const LLT s32 = LLT::scalar(32);
+  const LLT s64 = LLT::scalar(64);
+  const LLT p0 = LLT::pointer(0, 32);
+
+  getActionDefinitionsBuilder({G_ADD, G_SUB, G_MUL})
+      .legalFor({s32})
+      .clampScalar(0, s32, s32);
+
+  getActionDefinitionsBuilder({G_UADDO, G_UADDE, G_USUBO, G_USUBE, G_UMULO})
+      .lowerFor({{s32, s1}});
+
+  getActionDefinitionsBuilder(G_UMULH)
+      .legalFor({s32})
+      .maxScalar(0, s32);
+
+  getActionDefinitionsBuilder({G_LOAD, G_STORE})
+      .legalForTypesWithMemDesc({{s32, p0, 8, 8},
+                                 {s32, p0, 16, 8},
+                                 {s32, p0, 32, 8},
+                                 {s64, p0, 64, 8},
+                                 {p0, p0, 32, 8}})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder(G_UNMERGE_VALUES)
+     .legalFor({{s32, s64}});
+
+  getActionDefinitionsBuilder(G_MERGE_VALUES)
+     .legalFor({{s64, s32}});
+
+  getActionDefinitionsBuilder({G_ZEXTLOAD, G_SEXTLOAD})
+    .legalForTypesWithMemDesc({{s32, p0, 8, 8},
+                               {s32, p0, 16, 8}})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder(G_SELECT)
+      .legalForCartesianProduct({p0, s32, s64}, {s32})
+      .minScalar(0, s32)
+      .minScalar(1, s32);
+
+  getActionDefinitionsBuilder(G_BRCOND)
+      .legalFor({s32})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder(G_PHI)
+      .legalFor({p0, s32, s64})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder({G_AND, G_OR, G_XOR})
+      .legalFor({s32})
+      .clampScalar(0, s32, s32);
+
+  getActionDefinitionsBuilder({G_SDIV, G_SREM, G_UREM, G_UDIV})
+      .legalFor({s32})
+      .minScalar(0, s32)
+      .libcallFor({s64});
+
+  getActionDefinitionsBuilder({G_SHL, G_ASHR, G_LSHR})
+    .legalFor({s32, s32})
+    .minScalar(1, s32);
+
+  getActionDefinitionsBuilder(G_ICMP)
+      .legalForCartesianProduct({s32}, {s32, p0})
+      .clampScalar(1, s32, s32)
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder(G_CONSTANT)
+      .legalFor({s32})
+      .clampScalar(0, s32, s32);
+
+  getActionDefinitionsBuilder(G_GEP)
+      .legalFor({{p0, s32}});
+
+  getActionDefinitionsBuilder(G_FRAME_INDEX)
+      .legalFor({p0});
+
+  getActionDefinitionsBuilder(G_GLOBAL_VALUE)
+      .legalFor({p0});
+
+  // FP instructions
+  getActionDefinitionsBuilder(G_FCONSTANT)
+      .legalFor({s32, s64});
+
+  getActionDefinitionsBuilder({G_FADD, G_FSUB, G_FMUL, G_FDIV, G_FABS, G_FSQRT})
+      .legalFor({s32, s64});
+
+  getActionDefinitionsBuilder(G_FCMP)
+      .legalFor({{s32, s32}, {s32, s64}})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder({G_FCEIL, G_FFLOOR})
+      .libcallFor({s32, s64});
+
+  getActionDefinitionsBuilder(G_FPEXT)
+      .legalFor({{s64, s32}});
+
+  getActionDefinitionsBuilder(G_FPTRUNC)
+      .legalFor({{s32, s64}});
+
+  // FP to int conversion instructions
+  getActionDefinitionsBuilder(G_FPTOSI)
+      .legalForCartesianProduct({s32}, {s64, s32})
+      .libcallForCartesianProduct({s64}, {s64, s32})
+      .minScalar(0, s32);
+
+  getActionDefinitionsBuilder(G_FPTOUI)
+      .libcallForCartesianProduct({s64}, {s64, s32})
+      .minScalar(0, s32);
+
+  // Int to FP conversion instructions
+  getActionDefinitionsBuilder(G_SITOFP)
+      .legalForCartesianProduct({s64, s32}, {s32})
+      .libcallForCartesianProduct({s64, s32}, {s64})
+      .minScalar(1, s32);
+
+  getActionDefinitionsBuilder(G_UITOFP)
+      .libcallForCartesianProduct({s64, s32}, {s64})
+      .minScalar(1, s32);
+
+  computeTables();
+  verify(*ST.getInstrInfo());
+}
+
+bool MipsLegalizerInfo::legalizeCustom(MachineInstr &MI,
+                                       MachineRegisterInfo &MRI,
+                                       MachineIRBuilder &MIRBuilder,
+                                       GISelChangeObserver &Observer) const {
+
+  using namespace TargetOpcode;
+
+  MIRBuilder.setInstr(MI);
+
+  return false;
+}