//
//===----------------------------------------------------------------------===//
-#include "AMDGPU.h"
-#include "AMDGPUTargetMachine.h"
+#include "AMDGPUTargetTransformInfo.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Analysis/ValueTracking.h"
+#include "llvm/CodeGen/BasicTTIImpl.h"
#include "llvm/Support/Debug.h"
#include "llvm/Target/CostTable.h"
#include "llvm/Target/TargetLowering.h"
#define DEBUG_TYPE "AMDGPUtti"
-// Declare the pass initialization routine locally as target-specific passes
-// don't have a target-wide initialization entry point, and so we rely on the
-// pass constructor initialization.
-namespace llvm {
-void initializeAMDGPUTTIPass(PassRegistry &);
-}
-
-namespace {
-
-class AMDGPUTTI final : public ImmutablePass, public TargetTransformInfo {
- const AMDGPUTargetMachine *TM;
- const AMDGPUSubtarget *ST;
- const AMDGPUTargetLowering *TLI;
-
- /// Estimate the overhead of scalarizing an instruction. Insert and Extract
- /// are set if the result needs to be inserted and/or extracted from vectors.
- unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract) const;
-
-public:
- AMDGPUTTI() : ImmutablePass(ID), TM(nullptr), ST(nullptr), TLI(nullptr) {
- llvm_unreachable("This pass cannot be directly constructed");
- }
-
- AMDGPUTTI(const AMDGPUTargetMachine *TM)
- : ImmutablePass(ID), TM(TM), ST(TM->getSubtargetImpl()),
- TLI(TM->getTargetLowering()) {
- initializeAMDGPUTTIPass(*PassRegistry::getPassRegistry());
- }
-
- void initializePass() override { pushTTIStack(this); }
-
- void getAnalysisUsage(AnalysisUsage &AU) const override {
- TargetTransformInfo::getAnalysisUsage(AU);
- }
-
- /// Pass identification.
- static char ID;
-
- /// Provide necessary pointer adjustments for the two base classes.
- void *getAdjustedAnalysisPointer(const void *ID) override {
- if (ID == &TargetTransformInfo::ID)
- return (TargetTransformInfo *)this;
- return this;
- }
-
- bool hasBranchDivergence() const override;
-
- void getUnrollingPreferences(Loop *L,
- UnrollingPreferences &UP) const override;
-
- PopcntSupportKind getPopcntSupport(unsigned IntTyWidthInBit) const override;
-
- unsigned getNumberOfRegisters(bool Vector) const override;
- unsigned getRegisterBitWidth(bool Vector) const override;
- unsigned getMaximumUnrollFactor() const override;
-
- /// @}
-};
-
-} // end anonymous namespace
-
-INITIALIZE_AG_PASS(AMDGPUTTI, TargetTransformInfo, "AMDGPUtti",
- "AMDGPU Target Transform Info", true, true, false)
-char AMDGPUTTI::ID = 0;
-
-ImmutablePass *
-llvm::createAMDGPUTargetTransformInfoPass(const AMDGPUTargetMachine *TM) {
- return new AMDGPUTTI(TM);
-}
-
-bool AMDGPUTTI::hasBranchDivergence() const { return true; }
-
-void AMDGPUTTI::getUnrollingPreferences(Loop *L,
- UnrollingPreferences &UP) const {
+void AMDGPUTTIImpl::getUnrollingPreferences(Loop *L,
+ TTI::UnrollingPreferences &UP) {
UP.Threshold = 300; // Twice the default.
- UP.Count = UINT_MAX;
+ UP.MaxCount = UINT_MAX;
UP.Partial = true;
// TODO: Do we want runtime unrolling?
}
}
-AMDGPUTTI::PopcntSupportKind
-AMDGPUTTI::getPopcntSupport(unsigned TyWidth) const {
- assert(isPowerOf2_32(TyWidth) && "Ty width must be power of 2");
- return ST->hasBCNT(TyWidth) ? PSK_FastHardware : PSK_Software;
-}
-
-unsigned AMDGPUTTI::getNumberOfRegisters(bool Vec) const {
+unsigned AMDGPUTTIImpl::getNumberOfRegisters(bool Vec) {
if (Vec)
return 0;
return 4 * 128; // XXX - 4 channels. Should these count as vector instead?
}
-unsigned AMDGPUTTI::getRegisterBitWidth(bool) const {
- return 32;
-}
+unsigned AMDGPUTTIImpl::getRegisterBitWidth(bool) { return 32; }
-unsigned AMDGPUTTI::getMaximumUnrollFactor() const {
+unsigned AMDGPUTTIImpl::getMaxInterleaveFactor() {
// Semi-arbitrary large amount.
return 64;
}