Author: Cullen Rhodes Date: 2020-12-18T10:37:01Z New Revision: 7c8796f9db2c82ea6e3721744a7d98ebf0e77cd3
URL: https://github.com/llvm/llvm-project/commit/7c8796f9db2c82ea6e3721744a7d98ebf0e77cd3 DIFF: https://github.com/llvm/llvm-project/commit/7c8796f9db2c82ea6e3721744a7d98ebf0e77cd3.diff LOG: [TTI] Add supportsScalableVectors target hook This is split off from D91718 and adds a new target hook supportsScalableVectors that can be queried to check if scalable vectors are supported by the backend. For AArch64 this returns true if SVE is enabled. Reviewed By: david-arm Differential Revision: https://reviews.llvm.org/D93060 Added: Modified: llvm/include/llvm/Analysis/TargetTransformInfo.h llvm/include/llvm/Analysis/TargetTransformInfoImpl.h llvm/lib/Analysis/TargetTransformInfo.cpp llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h Removed: ################################################################################ diff --git a/llvm/include/llvm/Analysis/TargetTransformInfo.h b/llvm/include/llvm/Analysis/TargetTransformInfo.h index b9b9df35cdb0..0953a3b3f451 100644 --- a/llvm/include/llvm/Analysis/TargetTransformInfo.h +++ b/llvm/include/llvm/Analysis/TargetTransformInfo.h @@ -1340,6 +1340,9 @@ class TargetTransformInfo { /// to a stack reload. unsigned getGISelRematGlobalCost() const; + /// \returns True if the target supports scalable vectors. + bool supportsScalableVectors() const; + /// \name Vector Predication Information /// @{ /// Whether the target supports the %evl parameter of VP intrinsic efficiently @@ -1634,6 +1637,7 @@ class TargetTransformInfo::Concept { ReductionFlags) const = 0; virtual bool shouldExpandReduction(const IntrinsicInst *II) const = 0; virtual unsigned getGISelRematGlobalCost() const = 0; + virtual bool supportsScalableVectors() const = 0; virtual bool hasActiveVectorLength() const = 0; virtual int getInstructionLatency(const Instruction *I) = 0; }; @@ -2163,6 +2167,10 @@ class TargetTransformInfo::Model final : public TargetTransformInfo::Concept { return Impl.getGISelRematGlobalCost(); } + bool supportsScalableVectors() const override { + return Impl.supportsScalableVectors(); + } + bool hasActiveVectorLength() const override { return Impl.hasActiveVectorLength(); } diff --git a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h index 2c206094ac4a..6415e7bfe7c3 100644 --- a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h +++ b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h @@ -685,6 +685,8 @@ class TargetTransformInfoImplBase { unsigned getGISelRematGlobalCost() const { return 1; } + bool supportsScalableVectors() const { return false; } + bool hasActiveVectorLength() const { return false; } protected: diff --git a/llvm/lib/Analysis/TargetTransformInfo.cpp b/llvm/lib/Analysis/TargetTransformInfo.cpp index 086a212ee65b..becf74c64fd5 100644 --- a/llvm/lib/Analysis/TargetTransformInfo.cpp +++ b/llvm/lib/Analysis/TargetTransformInfo.cpp @@ -1056,6 +1056,10 @@ unsigned TargetTransformInfo::getGISelRematGlobalCost() const { return TTIImpl->getGISelRematGlobalCost(); } +bool TargetTransformInfo::supportsScalableVectors() const { + return TTIImpl->supportsScalableVectors(); +} + int TargetTransformInfo::getInstructionLatency(const Instruction *I) const { return TTIImpl->getInstructionLatency(I); } diff --git a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h index baf11cd7fa23..c8e721b1fb9f 100644 --- a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h +++ b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h @@ -228,6 +228,8 @@ class AArch64TTIImpl : public BasicTTIImplBase<AArch64TTIImpl> { return 2; } + bool supportsScalableVectors() const { return ST->hasSVE(); } + bool useReductionIntrinsic(unsigned Opcode, Type *Ty, TTI::ReductionFlags Flags) const; _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
