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[multiversion] Remove the cached TargetMachine pointer from the

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intermediate TTI implementation template and instead query up to the
derived class for both the TargetMachine and the TargetLowering.

Most of the derived types had a TLI cached already and there is no need
to store a less precisely typed target machine pointer.

This will in turn make it much cleaner to look up the TLI via
a per-function subtarget instead of the generic subtarget, and it will
pave the way toward pulling the subtarget used for unroll preferences
into the same form once we are *always* using the function to look up
the correct subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227737 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2015-02-01 14:01:15 +00:00
parent 7b1ef137a2
commit d0bfb83efb
9 changed files with 129 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
include/llvm/CodeGen/BasicTTIImpl.h
View File

@ -26,6 +26,15 @@ namespace llvm {
extern cl::opt<unsigned> PartialUnrollingThreshold;
/// \brief Base class which can be used to help build a TTI implementation.
///
/// This class provides as much implementation of the TTI interface as is
/// possible using the target independent parts of the code generator.
///
/// In order to subclass it, your class must implement a getTM() method to
/// return the target machine, and a getTLI() method to return the target
/// lowering. We need these methods implemented in the derived class so that
/// this class doesn't have to duplicate storage for them.
template <typename T>
class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
private:
@ -70,30 +79,32 @@ private:
return Cost;
}
/// \brief Local query method delegates up to T which *must* implement this!
const TargetMachine *getTM() const {
return static_cast<const T *>(this)->getTM();
}
/// \brief Local query method delegates up to T which *must* implement this!
const TargetLoweringBase *getTLI() const {
return TM->getSubtargetImpl()->getTargetLowering();
return static_cast<const T *>(this)->getTLI();
}
protected:
const TargetMachine *TM;
explicit BasicTTIImplBase(const TargetMachine *TM)
: BaseT(TM->getDataLayout()), TM(TM) {}
: BaseT(TM->getDataLayout()) {}
public:
// Provide value semantics. MSVC requires that we spell all of these out.
BasicTTIImplBase(const BasicTTIImplBase &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM) {}
: BaseT(static_cast<const BaseT &>(Arg)) {}
BasicTTIImplBase(BasicTTIImplBase &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))) {}
BasicTTIImplBase &operator=(const BasicTTIImplBase &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
return *this;
}
BasicTTIImplBase &operator=(BasicTTIImplBase &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
return *this;
}
@ -182,7 +193,7 @@ public:
// until someone finds a case where it matters in practice.
unsigned MaxOps;
const TargetSubtargetInfo *ST = TM->getSubtargetImpl(*F);
const TargetSubtargetInfo *ST = getTM()->getSubtargetImpl(*F);
if (PartialUnrollingThreshold.getNumOccurrences() > 0)
MaxOps = PartialUnrollingThreshold;
else if (ST->getSchedModel().LoopMicroOpBufferSize > 0)
@ -626,21 +637,33 @@ public:
/// is needed.
class BasicTTIImpl : public BasicTTIImplBase<BasicTTIImpl> {
typedef BasicTTIImplBase<BasicTTIImpl> BaseT;
friend class BasicTTIImplBase<BasicTTIImpl>;
const TargetMachine *TM;
const TargetLoweringBase *TLI;
const TargetMachine *getTM() const { return TM; }
const TargetLoweringBase *getTLI() const { return TLI; }
public:
explicit BasicTTIImpl(const TargetMachine *TM);
// Provide value semantics. MSVC requires that we spell all of these out.
BasicTTIImpl(const BasicTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), TLI(Arg.TLI) {}
BasicTTIImpl(BasicTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
TLI(std::move(Arg.TLI)) {}
BasicTTIImpl &operator=(const BasicTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
TLI = RHS.TLI;
return *this;
}
BasicTTIImpl &operator=(BasicTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
TLI = std::move(RHS.TLI);
return *this;
}
};

3
lib/CodeGen/BasicTargetTransformInfo.cpp
View File

@ -33,4 +33,5 @@ cl::opt<unsigned>
cl::desc("Threshold for partial unrolling"),
cl::Hidden);
BasicTTIImpl::BasicTTIImpl(const TargetMachine *TM) : BaseT(TM) {}
BasicTTIImpl::BasicTTIImpl(const TargetMachine *TM)
: BaseT(TM), TM(TM), TLI(TM->getSubtargetImpl()->getTargetLowering()) {}

17
lib/Target/AArch64/AArch64TargetTransformInfo.h
View File

@ -29,7 +29,9 @@ namespace llvm {
class AArch64TTIImpl : public BasicTTIImplBase<AArch64TTIImpl> {
typedef BasicTTIImplBase<AArch64TTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const AArch64TargetMachine *TM;
const AArch64Subtarget *ST;
const AArch64TargetLowering *TLI;
@ -37,6 +39,9 @@ class AArch64TTIImpl : public BasicTTIImplBase<AArch64TTIImpl> {
/// are set if the result needs to be inserted and/or extracted from vectors.
unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
const AArch64TargetMachine *getTM() const { return TM; }
const AArch64TargetLowering *getTLI() const { return TLI; }
enum MemIntrinsicType {
VECTOR_LDST_TWO_ELEMENTS,
VECTOR_LDST_THREE_ELEMENTS,
@ -45,22 +50,26 @@ class AArch64TTIImpl : public BasicTTIImplBase<AArch64TTIImpl> {
public:
explicit AArch64TTIImpl(const AArch64TargetMachine *TM, Function &F)
: BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
: BaseT(TM), TM(TM), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
AArch64TTIImpl(const AArch64TTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), ST(Arg.ST),
TLI(Arg.TLI) {}
AArch64TTIImpl(AArch64TTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
TLI(std::move(Arg.TLI)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
ST(std::move(Arg.ST)), TLI(std::move(Arg.TLI)) {}
AArch64TTIImpl &operator=(const AArch64TTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
ST = RHS.ST;
TLI = RHS.TLI;
return *this;
}
AArch64TTIImpl &operator=(AArch64TTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
ST = std::move(RHS.ST);
TLI = std::move(RHS.TLI);
return *this;

16
lib/Target/ARM/ARMTargetTransformInfo.h
View File

@ -28,7 +28,9 @@ namespace llvm {
class ARMTTIImpl : public BasicTTIImplBase<ARMTTIImpl> {
typedef BasicTTIImplBase<ARMTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const ARMBaseTargetMachine *TM;
const ARMSubtarget *ST;
const ARMTargetLowering *TLI;
@ -36,24 +38,30 @@ class ARMTTIImpl : public BasicTTIImplBase<ARMTTIImpl> {
/// are set if the result needs to be inserted and/or extracted from vectors.
unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
const ARMBaseTargetMachine *getTM() const { return TM; }
const ARMTargetLowering *getTLI() const { return TLI; }
public:
explicit ARMTTIImpl(const ARMBaseTargetMachine *TM, Function &F)
: BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
: BaseT(TM), TM(TM), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
ARMTTIImpl(const ARMTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), ST(Arg.ST), TLI(Arg.TLI) {}
ARMTTIImpl(ARMTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
TLI(std::move(Arg.TLI)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
ST(std::move(Arg.ST)), TLI(std::move(Arg.TLI)) {}
ARMTTIImpl &operator=(const ARMTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
ST = RHS.ST;
TLI = RHS.TLI;
return *this;
}
ARMTTIImpl &operator=(ARMTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
ST = std::move(RHS.ST);
TLI = std::move(RHS.TLI);
return *this;

13
lib/Target/NVPTX/NVPTXTargetTransformInfo.h
View File

@ -28,25 +28,32 @@ namespace llvm {
class NVPTXTTIImpl : public BasicTTIImplBase<NVPTXTTIImpl> {
typedef BasicTTIImplBase<NVPTXTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const NVPTXTargetMachine *TM;
const NVPTXTargetLowering *TLI;
const NVPTXTargetMachine *getTM() const { return TM; };
const NVPTXTargetLowering *getTLI() const { return TLI; };
public:
explicit NVPTXTTIImpl(const NVPTXTargetMachine *TM)
: BaseT(TM), TLI(TM->getSubtargetImpl()->getTargetLowering()) {}
: BaseT(TM), TM(TM), TLI(TM->getSubtargetImpl()->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
NVPTXTTIImpl(const NVPTXTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), TLI(Arg.TLI) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), TLI(Arg.TLI) {}
NVPTXTTIImpl(NVPTXTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), TLI(std::move(Arg.TLI)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)), TLI(std::move(Arg.TLI)) {}
NVPTXTTIImpl &operator=(const NVPTXTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
TLI = RHS.TLI;
return *this;
}
NVPTXTTIImpl &operator=(NVPTXTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
TLI = std::move(RHS.TLI);
return *this;
}

17
lib/Target/PowerPC/PPCTargetTransformInfo.h
View File

@ -28,28 +28,37 @@ namespace llvm {
class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> {
typedef BasicTTIImplBase<PPCTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const PPCTargetMachine *TM;
const PPCSubtarget *ST;
const PPCTargetLowering *TLI;
const PPCTargetMachine *getTM() const { return TM; }
const PPCTargetLowering *getTLI() const { return TLI; }
public:
explicit PPCTTIImpl(const PPCTargetMachine *TM, Function &F)
: BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
: BaseT(TM), TM(TM), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
PPCTTIImpl(const PPCTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), ST(Arg.ST),
TLI(Arg.TLI) {}
PPCTTIImpl(PPCTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
TLI(std::move(Arg.TLI)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
ST(std::move(Arg.ST)), TLI(std::move(Arg.TLI)) {}
PPCTTIImpl &operator=(const PPCTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
ST = RHS.ST;
TLI = RHS.TLI;
return *this;
}
PPCTTIImpl &operator=(PPCTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
ST = std::move(RHS.ST);
TLI = std::move(RHS.TLI);
return *this;

19
lib/Target/R600/AMDGPUTargetTransformInfo.h
View File

@ -28,26 +28,39 @@ namespace llvm {
class AMDGPUTTIImpl : public BasicTTIImplBase<AMDGPUTTIImpl> {
typedef BasicTTIImplBase<AMDGPUTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const AMDGPUTargetMachine *TM;
const AMDGPUSubtarget *ST;
const AMDGPUTargetLowering *TLI;
const AMDGPUTargetMachine *getTM() const { return TM; }
const AMDGPUTargetLowering *getTLI() const { return TLI; }
public:
explicit AMDGPUTTIImpl(const AMDGPUTargetMachine *TM)
: BaseT(TM), ST(TM->getSubtargetImpl()) {}
: BaseT(TM), TM(TM), ST(TM->getSubtargetImpl()),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
AMDGPUTTIImpl(const AMDGPUTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), ST(Arg.ST),
TLI(Arg.TLI) {}
AMDGPUTTIImpl(AMDGPUTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
ST(std::move(Arg.ST)), TLI(std::move(Arg.TLI)) {}
AMDGPUTTIImpl &operator=(const AMDGPUTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
ST = RHS.ST;
TLI = RHS.TLI;
return *this;
}
AMDGPUTTIImpl &operator=(AMDGPUTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
ST = std::move(RHS.ST);
TLI = std::move(RHS.TLI);
return *this;
}

17
lib/Target/X86/X86TargetTransformInfo.h
View File

@ -28,30 +28,39 @@ namespace llvm {
class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
typedef BasicTTIImplBase<X86TTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const X86TargetMachine *TM;
const X86Subtarget *ST;
const X86TargetLowering *TLI;
unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
const X86TargetMachine *getTM() const { return TM; }
const X86TargetLowering *getTLI() const { return TLI; }
public:
explicit X86TTIImpl(const X86TargetMachine *TM, Function &F)
: BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
: BaseT(TM), TM(TM), ST(TM->getSubtargetImpl(F)),
TLI(ST->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
X86TTIImpl(const X86TTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), ST(Arg.ST),
TLI(Arg.TLI) {}
X86TTIImpl(X86TTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
TLI(std::move(Arg.TLI)) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
ST(std::move(Arg.ST)), TLI(std::move(Arg.TLI)) {}
X86TTIImpl &operator=(const X86TTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
ST = RHS.ST;
TLI = RHS.TLI;
return *this;
}
X86TTIImpl &operator=(X86TTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
ST = std::move(RHS.ST);
TLI = std::move(RHS.TLI);
return *this;

19
lib/Target/XCore/XCoreTargetTransformInfo.h
View File

@ -28,21 +28,34 @@ namespace llvm {
class XCoreTTIImpl : public BasicTTIImplBase<XCoreTTIImpl> {
typedef BasicTTIImplBase<XCoreTTIImpl> BaseT;
typedef TargetTransformInfo TTI;
friend BaseT;
const XCoreTargetMachine *TM;
const XCoreTargetLowering *TLI;
const XCoreTargetMachine *getTM() const { return TM; }
const XCoreTargetLowering *getTLI() const { return TLI; }
public:
explicit XCoreTTIImpl(const XCoreTargetMachine *TM) : BaseT(TM) {}
explicit XCoreTTIImpl(const XCoreTargetMachine *TM)
: BaseT(TM), TM(TM), TLI(TM->getSubtargetImpl()->getTargetLowering()) {}
// Provide value semantics. MSVC requires that we spell all of these out.
XCoreTTIImpl(const XCoreTTIImpl &Arg)
: BaseT(static_cast<const BaseT &>(Arg)) {}
: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), TLI(Arg.TLI) {}
XCoreTTIImpl(XCoreTTIImpl &&Arg)
: BaseT(std::move(static_cast<BaseT &>(Arg))) {}
: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)),
TLI(std::move(Arg.TLI)) {}
XCoreTTIImpl &operator=(const XCoreTTIImpl &RHS) {
BaseT::operator=(static_cast<const BaseT &>(RHS));
TM = RHS.TM;
TLI = RHS.TLI;
return *this;
}
XCoreTTIImpl &operator=(XCoreTTIImpl &&RHS) {
BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
TM = std::move(RHS.TM);
TLI = std::move(RHS.TLI);
return *this;
}