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-rw-r--r--contrib/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp82
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diff --git a/contrib/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp b/contrib/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
deleted file mode 100644
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--- a/contrib/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
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-//===-- AMDGPUTargetTransformInfo.cpp - AMDGPU specific TTI pass ---------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// \file
-// This file implements a TargetTransformInfo analysis pass specific to the
-// AMDGPU target machine. It uses the target's detailed information to provide
-// more precise answers to certain TTI queries, while letting the target
-// independent and default TTI implementations handle the rest.
-//
-//===----------------------------------------------------------------------===//
-
-#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/IR/Module.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Target/CostTable.h"
-#include "llvm/Target/TargetLowering.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "AMDGPUtti"
-
-void AMDGPUTTIImpl::getUnrollingPreferences(Loop *L,
- TTI::UnrollingPreferences &UP) {
- UP.Threshold = 300; // Twice the default.
- UP.MaxCount = UINT_MAX;
- UP.Partial = true;
-
- // TODO: Do we want runtime unrolling?
-
- for (const BasicBlock *BB : L->getBlocks()) {
- const DataLayout &DL = BB->getModule()->getDataLayout();
- for (const Instruction &I : *BB) {
- const GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(&I);
- if (!GEP || GEP->getAddressSpace() != AMDGPUAS::PRIVATE_ADDRESS)
- continue;
-
- const Value *Ptr = GEP->getPointerOperand();
- const AllocaInst *Alloca =
- dyn_cast<AllocaInst>(GetUnderlyingObject(Ptr, DL));
- if (Alloca) {
- // We want to do whatever we can to limit the number of alloca
- // instructions that make it through to the code generator. allocas
- // require us to use indirect addressing, which is slow and prone to
- // compiler bugs. If this loop does an address calculation on an
- // alloca ptr, then we want to use a higher than normal loop unroll
- // threshold. This will give SROA a better chance to eliminate these
- // allocas.
- //
- // Don't use the maximum allowed value here as it will make some
- // programs way too big.
- UP.Threshold = 800;
- }
- }
- }
-}
-
-unsigned AMDGPUTTIImpl::getNumberOfRegisters(bool Vec) {
- if (Vec)
- return 0;
-
- // Number of VGPRs on SI.
- if (ST->getGeneration() >= AMDGPUSubtarget::SOUTHERN_ISLANDS)
- return 256;
-
- return 4 * 128; // XXX - 4 channels. Should these count as vector instead?
-}
-
-unsigned AMDGPUTTIImpl::getRegisterBitWidth(bool) { return 32; }
-
-unsigned AMDGPUTTIImpl::getMaxInterleaveFactor(unsigned VF) {
- // Semi-arbitrary large amount.
- return 64;
-}
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