[llvm] r210479 - Move all of the x86 subtarget initialized variables down into the x86 subtarget

Eric Christopher echristo at gmail.com
Tue Jun 10 01:11:43 PDT 2014


Ah, thanks!

Fixed in r210516

-eric

On Tue, Jun 10, 2014 at 1:00 AM, Alexander Potapenko <glider at google.com> wrote:
> Eric,
>
> Looks like you're forgetting to free JITInfo in ~X86Subtarget().
>
> On Mon, Jun 9, 2014 at 9:08 PM, Eric Christopher <echristo at gmail.com> wrote:
>> Author: echristo
>> Date: Mon Jun  9 12:08:19 2014
>> New Revision: 210479
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=210479&view=rev
>> Log:
>> Move all of the x86 subtarget initialized variables down into the x86 subtarget
>> from the x86 target machine. Should be no functional change.
>>
>> Modified:
>>     llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>>     llvm/trunk/lib/Target/X86/X86ISelLowering.h
>>     llvm/trunk/lib/Target/X86/X86JITInfo.h
>>     llvm/trunk/lib/Target/X86/X86Subtarget.cpp
>>     llvm/trunk/lib/Target/X86/X86Subtarget.h
>>     llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
>>     llvm/trunk/lib/Target/X86/X86TargetMachine.h
>>
>> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
>> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Jun  9 12:08:19 2014
>> @@ -21606,3 +21606,7 @@ int X86TargetLowering::getScalingFactorC
>>      return AM.Scale != 0;
>>    return -1;
>>  }
>> +
>> +bool X86TargetLowering::isTargetFTOL() const {
>> +  return Subtarget->isTargetKnownWindowsMSVC() && !Subtarget->is64Bit();
>> +}
>>
>> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.h
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86ISelLowering.h (original)
>> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.h Mon Jun  9 12:08:19 2014
>> @@ -15,13 +15,13 @@
>>  #ifndef X86ISELLOWERING_H
>>  #define X86ISELLOWERING_H
>>
>> -#include "X86Subtarget.h"
>>  #include "llvm/CodeGen/CallingConvLower.h"
>>  #include "llvm/CodeGen/SelectionDAG.h"
>>  #include "llvm/Target/TargetLowering.h"
>>  #include "llvm/Target/TargetOptions.h"
>>
>>  namespace llvm {
>> +  class X86Subtarget;
>>    class X86TargetMachine;
>>
>>    namespace X86ISD {
>> @@ -766,9 +766,7 @@ namespace llvm {
>>
>>      /// isTargetFTOL - Return true if the target uses the MSVC _ftol2 routine
>>      /// for fptoui.
>> -    bool isTargetFTOL() const {
>> -      return Subtarget->isTargetKnownWindowsMSVC() && !Subtarget->is64Bit();
>> -    }
>> +    bool isTargetFTOL() const;
>>
>>      /// isIntegerTypeFTOL - Return true if the MSVC _ftol2 routine should be
>>      /// used for fptoui to the given type.
>>
>> Modified: llvm/trunk/lib/Target/X86/X86JITInfo.h
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86JITInfo.h?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86JITInfo.h (original)
>> +++ llvm/trunk/lib/Target/X86/X86JITInfo.h Mon Jun  9 12:08:19 2014
>> @@ -23,7 +23,7 @@ namespace llvm {
>>
>>    class X86JITInfo : public TargetJITInfo {
>>      uintptr_t PICBase;
>> -    char* TLSOffset;
>> +    char *TLSOffset;
>>      bool useSSE;
>>    public:
>>      explicit X86JITInfo(bool UseSSE);
>>
>> Modified: llvm/trunk/lib/Target/X86/X86Subtarget.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.cpp?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86Subtarget.cpp (original)
>> +++ llvm/trunk/lib/Target/X86/X86Subtarget.cpp Mon Jun  9 12:08:19 2014
>> @@ -297,8 +297,47 @@ void X86Subtarget::initializeEnvironment
>>    MaxInlineSizeThreshold = 128;
>>  }
>>
>> +static std::string computeDataLayout(const X86Subtarget &ST) {
>> +  // X86 is little endian
>> +  std::string Ret = "e";
>> +
>> +  Ret += DataLayout::getManglingComponent(ST.getTargetTriple());
>> +  // X86 and x32 have 32 bit pointers.
>> +  if (ST.isTarget64BitILP32() || !ST.is64Bit())
>> +    Ret += "-p:32:32";
>> +
>> +  // Some ABIs align 64 bit integers and doubles to 64 bits, others to 32.
>> +  if (ST.is64Bit() || ST.isOSWindows() || ST.isTargetNaCl())
>> +    Ret += "-i64:64";
>> +  else
>> +    Ret += "-f64:32:64";
>> +
>> +  // Some ABIs align long double to 128 bits, others to 32.
>> +  if (ST.isTargetNaCl())
>> +    ; // No f80
>> +  else if (ST.is64Bit() || ST.isTargetDarwin())
>> +    Ret += "-f80:128";
>> +  else
>> +    Ret += "-f80:32";
>> +
>> +  // The registers can hold 8, 16, 32 or, in x86-64, 64 bits.
>> +  if (ST.is64Bit())
>> +    Ret += "-n8:16:32:64";
>> +  else
>> +    Ret += "-n8:16:32";
>> +
>> +  // The stack is aligned to 32 bits on some ABIs and 128 bits on others.
>> +  if (!ST.is64Bit() && ST.isOSWindows())
>> +    Ret += "-S32";
>> +  else
>> +    Ret += "-S128";
>> +
>> +  return Ret;
>> +}
>> +
>>  X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU,
>> -                           const std::string &FS, unsigned StackAlignOverride)
>> +                           const std::string &FS, X86TargetMachine &TM,
>> +                           unsigned StackAlignOverride)
>>      : X86GenSubtargetInfo(TT, CPU, FS), X86ProcFamily(Others),
>>        PICStyle(PICStyles::None), TargetTriple(TT),
>>        StackAlignOverride(StackAlignOverride),
>> @@ -306,9 +345,24 @@ X86Subtarget::X86Subtarget(const std::st
>>        In32BitMode(TargetTriple.getArch() == Triple::x86 &&
>>                    TargetTriple.getEnvironment() != Triple::CODE16),
>>        In16BitMode(TargetTriple.getArch() == Triple::x86 &&
>> -                  TargetTriple.getEnvironment() == Triple::CODE16) {
>> +                  TargetTriple.getEnvironment() == Triple::CODE16),
>> +      DL(computeDataLayout(*this)), TSInfo(DL) {
>>    initializeEnvironment();
>>    resetSubtargetFeatures(CPU, FS);
>> +  // Ordering here is important. X86InstrInfo initializes X86RegisterInfo which
>> +  // X86TargetLowering needs.
>> +  InstrInfo = new X86InstrInfo(TM);
>> +  TLInfo = new X86TargetLowering(TM);
>> +  FrameLowering = new X86FrameLowering(TargetFrameLowering::StackGrowsDown,
>> +                                       getStackAlignment(),
>> +                                       is64Bit() ? -8 : -4);
>> +  JITInfo = new X86JITInfo(hasSSE1());
>> +}
>> +
>> +X86Subtarget::~X86Subtarget() {
>> +  delete TLInfo;
>> +  delete InstrInfo;
>> +  delete FrameLowering;
>>  }
>>
>>  bool
>>
>> Modified: llvm/trunk/lib/Target/X86/X86Subtarget.h
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.h?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86Subtarget.h (original)
>> +++ llvm/trunk/lib/Target/X86/X86Subtarget.h Mon Jun  9 12:08:19 2014
>> @@ -14,6 +14,11 @@
>>  #ifndef X86SUBTARGET_H
>>  #define X86SUBTARGET_H
>>
>> +#include "X86FrameLowering.h"
>> +#include "X86ISelLowering.h"
>> +#include "X86InstrInfo.h"
>> +#include "X86JITInfo.h"
>> +#include "X86SelectionDAGInfo.h"
>>  #include "llvm/ADT/Triple.h"
>>  #include "llvm/IR/CallingConv.h"
>>  #include "llvm/Target/TargetSubtargetInfo.h"
>> @@ -40,6 +45,7 @@ enum Style {
>>  }
>>
>>  class X86Subtarget final : public X86GenSubtargetInfo {
>> +
>>  protected:
>>    enum X86SSEEnum {
>>      NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, AVX, AVX2, AVX512F
>> @@ -220,13 +226,29 @@ private:
>>    /// In16BitMode - True if compiling for 16-bit, false for 32-bit or 64-bit.
>>    bool In16BitMode;
>>
>> +  // Calculates type size & alignment
>> +  const DataLayout DL;
>> +  X86SelectionDAGInfo TSInfo;
>> +  X86TargetLowering *TLInfo;
>> +  X86InstrInfo *InstrInfo;
>> +  X86FrameLowering *FrameLowering;
>> +  X86JITInfo *JITInfo;
>> +
>>  public:
>>    /// This constructor initializes the data members to match that
>>    /// of the specified triple.
>>    ///
>>    X86Subtarget(const std::string &TT, const std::string &CPU,
>> -               const std::string &FS,
>> +               const std::string &FS, X86TargetMachine &TM,
>>                 unsigned StackAlignOverride);
>> +  ~X86Subtarget();
>> +
>> +  const X86TargetLowering *getTargetLowering() const { return TLInfo; }
>> +  const X86InstrInfo *getInstrInfo() const { return InstrInfo; }
>> +  const DataLayout *getDataLayout() const { return &DL; }
>> +  const X86FrameLowering *getFrameLowering() const { return FrameLowering; }
>> +  const X86SelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; }
>> +  X86JITInfo *getJITInfo() { return JITInfo; }
>>
>>    /// getStackAlignment - Returns the minimum alignment known to hold of the
>>    /// stack frame on entry to the function and which must be maintained by every
>>
>> Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.cpp?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86TargetMachine.cpp (original)
>> +++ llvm/trunk/lib/Target/X86/X86TargetMachine.cpp Mon Jun  9 12:08:19 2014
>> @@ -29,44 +29,6 @@ extern "C" void LLVMInitializeX86Target(
>>
>>  void X86TargetMachine::anchor() { }
>>
>> -static std::string computeDataLayout(const X86Subtarget &ST) {
>> -  // X86 is little endian
>> -  std::string Ret = "e";
>> -
>> -  Ret += DataLayout::getManglingComponent(ST.getTargetTriple());
>> -  // X86 and x32 have 32 bit pointers.
>> -  if (ST.isTarget64BitILP32() || !ST.is64Bit())
>> -    Ret += "-p:32:32";
>> -
>> -  // Some ABIs align 64 bit integers and doubles to 64 bits, others to 32.
>> -  if (ST.is64Bit() || ST.isOSWindows() || ST.isTargetNaCl())
>> -    Ret += "-i64:64";
>> -  else
>> -    Ret += "-f64:32:64";
>> -
>> -  // Some ABIs align long double to 128 bits, others to 32.
>> -  if (ST.isTargetNaCl())
>> -    ; // No f80
>> -  else if (ST.is64Bit() || ST.isTargetDarwin())
>> -    Ret += "-f80:128";
>> -  else
>> -    Ret += "-f80:32";
>> -
>> -  // The registers can hold 8, 16, 32 or, in x86-64, 64 bits.
>> -  if (ST.is64Bit())
>> -    Ret += "-n8:16:32:64";
>> -  else
>> -    Ret += "-n8:16:32";
>> -
>> -  // The stack is aligned to 32 bits on some ABIs and 128 bits on others.
>> -  if (!ST.is64Bit() && ST.isOSWindows())
>> -    Ret += "-S32";
>> -  else
>> -    Ret += "-S128";
>> -
>> -  return Ret;
>> -}
>> -
>>  /// X86TargetMachine ctor - Create an X86 target.
>>  ///
>>  X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT, StringRef CPU,
>> @@ -74,12 +36,7 @@ X86TargetMachine::X86TargetMachine(const
>>                                     Reloc::Model RM, CodeModel::Model CM,
>>                                     CodeGenOpt::Level OL)
>>      : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
>> -      Subtarget(TT, CPU, FS, Options.StackAlignmentOverride),
>> -      FrameLowering(TargetFrameLowering::StackGrowsDown,
>> -                    Subtarget.getStackAlignment(),
>> -                    Subtarget.is64Bit() ? -8 : -4),
>> -      DL(computeDataLayout(*getSubtargetImpl())), InstrInfo(*this),
>> -      TLInfo(*this), TSInfo(DL), JITInfo(Subtarget.hasSSE1()) {
>> +      Subtarget(TT, CPU, FS, *this, Options.StackAlignmentOverride) {
>>    // Determine the PICStyle based on the target selected.
>>    if (getRelocationModel() == Reloc::Static) {
>>      // Unless we're in PIC or DynamicNoPIC mode, set the PIC style to None.
>>
>> Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.h
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.h?rev=210479&r1=210478&r2=210479&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Target/X86/X86TargetMachine.h (original)
>> +++ llvm/trunk/lib/Target/X86/X86TargetMachine.h Mon Jun  9 12:08:19 2014
>> @@ -18,7 +18,6 @@
>>  #include "X86ISelLowering.h"
>>  #include "X86InstrInfo.h"
>>  #include "X86JITInfo.h"
>> -#include "X86SelectionDAGInfo.h"
>>  #include "X86Subtarget.h"
>>  #include "llvm/IR/DataLayout.h"
>>  #include "llvm/Target/TargetMachine.h"
>> @@ -30,12 +29,6 @@ class StringRef;
>>  class X86TargetMachine final : public LLVMTargetMachine {
>>    virtual void anchor();
>>    X86Subtarget       Subtarget;
>> -  X86FrameLowering   FrameLowering;
>> -  const DataLayout   DL; // Calculates type size & alignment
>> -  X86InstrInfo       InstrInfo;
>> -  X86TargetLowering  TLInfo;
>> -  X86SelectionDAGInfo TSInfo;
>> -  X86JITInfo         JITInfo;
>>
>>  public:
>>    X86TargetMachine(const Target &T, StringRef TT,
>> @@ -43,22 +36,22 @@ public:
>>                     Reloc::Model RM, CodeModel::Model CM,
>>                     CodeGenOpt::Level OL);
>>
>> -  const DataLayout *getDataLayout() const override { return &DL; }
>> +  const DataLayout *getDataLayout() const override {
>> +    return getSubtargetImpl()->getDataLayout();
>> +  }
>>    const X86InstrInfo *getInstrInfo() const override {
>> -    return &InstrInfo;
>> +    return getSubtargetImpl()->getInstrInfo();
>>    }
>>    const TargetFrameLowering *getFrameLowering() const override {
>> -    return &FrameLowering;
>> -  }
>> -  X86JITInfo *getJITInfo() override {
>> -    return &JITInfo;
>> +    return getSubtargetImpl()->getFrameLowering();
>>    }
>> +  X86JITInfo *getJITInfo() override { return Subtarget.getJITInfo(); }
>>    const X86Subtarget *getSubtargetImpl() const override { return &Subtarget; }
>>    const X86TargetLowering *getTargetLowering() const override {
>> -    return &TLInfo;
>> +    return getSubtargetImpl()->getTargetLowering();
>>    }
>>    const X86SelectionDAGInfo *getSelectionDAGInfo() const override {
>> -    return &TSInfo;
>> +    return getSubtargetImpl()->getSelectionDAGInfo();
>>    }
>>    const X86RegisterInfo  *getRegisterInfo() const override {
>>      return &getInstrInfo()->getRegisterInfo();
>>
>>
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>
>
>
> --
> Alexander Potapenko
> Software Engineer
> Google Moscow



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