Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/ARM/ARMLegalizerInfo.h

@@ -1,65 +0,0 @@
-//===- ARMLegalizerInfo ------------------------------------------*- 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 declares the targeting of the Machinelegalizer class for ARM.
-/// \todo This should be generated by TableGen.
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_ARM_ARMMACHINELEGALIZER_H
-#define LLVM_LIB_TARGET_ARM_ARMMACHINELEGALIZER_H
-
-#include "llvm/ADT/IndexedMap.h"
-#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
-#include "llvm/CodeGen/RuntimeLibcalls.h"
-#include "llvm/IR/Instructions.h"
-
-namespace llvm {
-
-class ARMSubtarget;
-
-/// This class provides the information for the target register banks.
-class ARMLegalizerInfo : public LegalizerInfo {
-public:
-  ARMLegalizerInfo(const ARMSubtarget &ST);
-
-  bool legalizeCustom(MachineInstr &MI, MachineRegisterInfo &MRI,
-                      MachineIRBuilder &MIRBuilder) const override;
-
-private:
-  void setFCmpLibcallsGNU();
-  void setFCmpLibcallsAEABI();
-
-  struct FCmpLibcallInfo {
-    // Which libcall this is.
-    RTLIB::Libcall LibcallID;
-
-    // The predicate to be used when comparing the value returned by the
-    // function with a relevant constant (currently hard-coded to zero). This is
-    // necessary because often the libcall will return e.g. a value greater than
-    // 0 to represent 'true' and anything negative to represent 'false', or
-    // maybe 0 to represent 'true' and non-zero for 'false'. If no comparison is
-    // needed, this should be CmpInst::BAD_ICMP_PREDICATE.
-    CmpInst::Predicate Predicate;
-  };
-  using FCmpLibcallsList = SmallVector<FCmpLibcallInfo, 2>;
-
-  // Map from each FCmp predicate to the corresponding libcall infos. A FCmp
-  // instruction may be lowered to one or two libcalls, which is why we need a
-  // list. If two libcalls are needed, their results will be OR'ed.
-  using FCmpLibcallsMapTy = IndexedMap<FCmpLibcallsList>;
-
-  FCmpLibcallsMapTy FCmp32Libcalls;
-  FCmpLibcallsMapTy FCmp64Libcalls;
-
-  // Get the libcall(s) corresponding to \p Predicate for operands of \p Size
-  // bits.
-  FCmpLibcallsList getFCmpLibcalls(CmpInst::Predicate, unsigned Size) const;
-};
-} // End llvm namespace.
-#endif