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The popc instruction is defined in the SPARCv9 instruction set architecture, but it was emulated on CPUs older than Niagara 2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200131 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the SPARC specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SPARC_SUBTARGET_H
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#define SPARC_SUBTARGET_H
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#include "llvm/Target/TargetSubtargetInfo.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "SparcGenSubtargetInfo.inc"
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namespace llvm {
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class StringRef;
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class SparcSubtarget : public SparcGenSubtargetInfo {
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virtual void anchor();
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bool IsV9;
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bool V8DeprecatedInsts;
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bool IsVIS;
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bool Is64Bit;
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bool HasHardQuad;
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bool UsePopc;
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public:
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SparcSubtarget(const std::string &TT, const std::string &CPU,
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const std::string &FS, bool is64bit);
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bool isV9() const { return IsV9; }
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bool isVIS() const { return IsVIS; }
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bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
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bool hasHardQuad() const { return HasHardQuad; }
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bool usePopc() const { return UsePopc; }
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/// ParseSubtargetFeatures - Parses features string setting specified
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/// subtarget options. Definition of function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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bool is64Bit() const { return Is64Bit; }
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/// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
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/// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
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int64_t getStackPointerBias() const {
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return is64Bit() ? 2047 : 0;
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}
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/// Given a actual stack size as determined by FrameInfo, this function
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/// returns adjusted framesize which includes space for register window
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/// spills and arguments.
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int getAdjustedFrameSize(int stackSize) const;
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};
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} // end namespace llvm
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#endif
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