diff options
Diffstat (limited to 'lib/Target/AMDGPU/R600TextureIntrinsicsReplacer.cpp')
| -rw-r--r-- | lib/Target/AMDGPU/R600TextureIntrinsicsReplacer.cpp | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/lib/Target/AMDGPU/R600TextureIntrinsicsReplacer.cpp b/lib/Target/AMDGPU/R600TextureIntrinsicsReplacer.cpp deleted file mode 100644 index 2fc7b02f673f0..0000000000000 --- a/lib/Target/AMDGPU/R600TextureIntrinsicsReplacer.cpp +++ /dev/null @@ -1,303 +0,0 @@ -//===-- R600TextureIntrinsicsReplacer.cpp ---------------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -/// \file -/// This pass translates tgsi-like texture intrinsics into R600 texture -/// closer to hardware intrinsics. -//===----------------------------------------------------------------------===// - -#include "AMDGPU.h" -#include "llvm/ADT/Statistic.h" -#include "llvm/Analysis/Passes.h" -#include "llvm/IR/Function.h" -#include "llvm/IR/GlobalValue.h" -#include "llvm/IR/IRBuilder.h" -#include "llvm/IR/InstVisitor.h" - -using namespace llvm; - -namespace { -class R600TextureIntrinsicsReplacer : - public FunctionPass, public InstVisitor<R600TextureIntrinsicsReplacer> { - static char ID; - - Module *Mod; - Type *FloatType; - Type *Int32Type; - Type *V4f32Type; - Type *V4i32Type; - FunctionType *TexSign; - FunctionType *TexQSign; - - void getAdjustmentFromTextureTarget(unsigned TextureType, bool hasLOD, - unsigned SrcSelect[4], unsigned CT[4], - bool &useShadowVariant) { - enum TextureTypes { - TEXTURE_1D = 1, - TEXTURE_2D, - TEXTURE_3D, - TEXTURE_CUBE, - TEXTURE_RECT, - TEXTURE_SHADOW1D, - TEXTURE_SHADOW2D, - TEXTURE_SHADOWRECT, - TEXTURE_1D_ARRAY, - TEXTURE_2D_ARRAY, - TEXTURE_SHADOW1D_ARRAY, - TEXTURE_SHADOW2D_ARRAY, - TEXTURE_SHADOWCUBE, - TEXTURE_2D_MSAA, - TEXTURE_2D_ARRAY_MSAA, - TEXTURE_CUBE_ARRAY, - TEXTURE_SHADOWCUBE_ARRAY - }; - - switch (TextureType) { - case 0: - useShadowVariant = false; - return; - case TEXTURE_RECT: - case TEXTURE_1D: - case TEXTURE_2D: - case TEXTURE_3D: - case TEXTURE_CUBE: - case TEXTURE_1D_ARRAY: - case TEXTURE_2D_ARRAY: - case TEXTURE_CUBE_ARRAY: - case TEXTURE_2D_MSAA: - case TEXTURE_2D_ARRAY_MSAA: - useShadowVariant = false; - break; - case TEXTURE_SHADOW1D: - case TEXTURE_SHADOW2D: - case TEXTURE_SHADOWRECT: - case TEXTURE_SHADOW1D_ARRAY: - case TEXTURE_SHADOW2D_ARRAY: - case TEXTURE_SHADOWCUBE: - case TEXTURE_SHADOWCUBE_ARRAY: - useShadowVariant = true; - break; - default: - llvm_unreachable("Unknow Texture Type"); - } - - if (TextureType == TEXTURE_RECT || - TextureType == TEXTURE_SHADOWRECT) { - CT[0] = 0; - CT[1] = 0; - } - - if (TextureType == TEXTURE_CUBE_ARRAY || - TextureType == TEXTURE_SHADOWCUBE_ARRAY) - CT[2] = 0; - - if (TextureType == TEXTURE_1D_ARRAY || - TextureType == TEXTURE_SHADOW1D_ARRAY) { - if (hasLOD && useShadowVariant) { - CT[1] = 0; - } else { - CT[2] = 0; - SrcSelect[2] = 1; - } - } else if (TextureType == TEXTURE_2D_ARRAY || - TextureType == TEXTURE_SHADOW2D_ARRAY) { - CT[2] = 0; - } - - if ((TextureType == TEXTURE_SHADOW1D || - TextureType == TEXTURE_SHADOW2D || - TextureType == TEXTURE_SHADOWRECT || - TextureType == TEXTURE_SHADOW1D_ARRAY) && - !(hasLOD && useShadowVariant)) - SrcSelect[3] = 2; - } - - void ReplaceCallInst(CallInst &I, FunctionType *FT, const char *Name, - unsigned SrcSelect[4], Value *Offset[3], Value *Resource, - Value *Sampler, unsigned CT[4], Value *Coord) { - IRBuilder<> Builder(&I); - Constant *Mask[] = { - ConstantInt::get(Int32Type, SrcSelect[0]), - ConstantInt::get(Int32Type, SrcSelect[1]), - ConstantInt::get(Int32Type, SrcSelect[2]), - ConstantInt::get(Int32Type, SrcSelect[3]) - }; - Value *SwizzleMask = ConstantVector::get(Mask); - Value *SwizzledCoord = - Builder.CreateShuffleVector(Coord, Coord, SwizzleMask); - - Value *Args[] = { - SwizzledCoord, - Offset[0], - Offset[1], - Offset[2], - Resource, - Sampler, - ConstantInt::get(Int32Type, CT[0]), - ConstantInt::get(Int32Type, CT[1]), - ConstantInt::get(Int32Type, CT[2]), - ConstantInt::get(Int32Type, CT[3]) - }; - - Function *F = Mod->getFunction(Name); - if (!F) { - F = Function::Create(FT, GlobalValue::ExternalLinkage, Name, Mod); - F->addFnAttr(Attribute::ReadNone); - } - I.replaceAllUsesWith(Builder.CreateCall(F, Args)); - I.eraseFromParent(); - } - - void ReplaceTexIntrinsic(CallInst &I, bool hasLOD, FunctionType *FT, - const char *VanillaInt, - const char *ShadowInt) { - Value *Coord = I.getArgOperand(0); - Value *ResourceId = I.getArgOperand(1); - Value *SamplerId = I.getArgOperand(2); - - unsigned TextureType = - cast<ConstantInt>(I.getArgOperand(3))->getZExtValue(); - - unsigned SrcSelect[4] = { 0, 1, 2, 3 }; - unsigned CT[4] = {1, 1, 1, 1}; - Value *Offset[3] = { - ConstantInt::get(Int32Type, 0), - ConstantInt::get(Int32Type, 0), - ConstantInt::get(Int32Type, 0) - }; - bool useShadowVariant; - - getAdjustmentFromTextureTarget(TextureType, hasLOD, SrcSelect, CT, - useShadowVariant); - - ReplaceCallInst(I, FT, useShadowVariant?ShadowInt:VanillaInt, SrcSelect, - Offset, ResourceId, SamplerId, CT, Coord); - } - - void ReplaceTXF(CallInst &I) { - Value *Coord = I.getArgOperand(0); - Value *ResourceId = I.getArgOperand(4); - Value *SamplerId = I.getArgOperand(5); - - unsigned TextureType = - cast<ConstantInt>(I.getArgOperand(6))->getZExtValue(); - - unsigned SrcSelect[4] = { 0, 1, 2, 3 }; - unsigned CT[4] = {1, 1, 1, 1}; - Value *Offset[3] = { - I.getArgOperand(1), - I.getArgOperand(2), - I.getArgOperand(3), - }; - bool useShadowVariant; - - getAdjustmentFromTextureTarget(TextureType, false, SrcSelect, CT, - useShadowVariant); - - ReplaceCallInst(I, TexQSign, "llvm.R600.txf", SrcSelect, - Offset, ResourceId, SamplerId, CT, Coord); - } - -public: - R600TextureIntrinsicsReplacer(): - FunctionPass(ID) { - } - - bool doInitialization(Module &M) override { - LLVMContext &Ctx = M.getContext(); - Mod = &M; - FloatType = Type::getFloatTy(Ctx); - Int32Type = Type::getInt32Ty(Ctx); - V4f32Type = VectorType::get(FloatType, 4); - V4i32Type = VectorType::get(Int32Type, 4); - Type *ArgsType[] = { - V4f32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - }; - TexSign = FunctionType::get(V4f32Type, ArgsType, /*isVarArg=*/false); - Type *ArgsQType[] = { - V4i32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - Int32Type, - }; - TexQSign = FunctionType::get(V4f32Type, ArgsQType, /*isVarArg=*/false); - return false; - } - - bool runOnFunction(Function &F) override { - visit(F); - return false; - } - - const char *getPassName() const override { - return "R600 Texture Intrinsics Replacer"; - } - - void getAnalysisUsage(AnalysisUsage &AU) const override { - } - - void visitCallInst(CallInst &I) { - if (!I.getCalledFunction()) - return; - - StringRef Name = I.getCalledFunction()->getName(); - if (Name == "llvm.AMDGPU.tex") { - ReplaceTexIntrinsic(I, false, TexSign, "llvm.R600.tex", "llvm.R600.texc"); - return; - } - if (Name == "llvm.AMDGPU.txl") { - ReplaceTexIntrinsic(I, true, TexSign, "llvm.R600.txl", "llvm.R600.txlc"); - return; - } - if (Name == "llvm.AMDGPU.txb") { - ReplaceTexIntrinsic(I, true, TexSign, "llvm.R600.txb", "llvm.R600.txbc"); - return; - } - if (Name == "llvm.AMDGPU.txf") { - ReplaceTXF(I); - return; - } - if (Name == "llvm.AMDGPU.txq") { - ReplaceTexIntrinsic(I, false, TexQSign, "llvm.R600.txq", "llvm.R600.txq"); - return; - } - if (Name == "llvm.AMDGPU.ddx") { - ReplaceTexIntrinsic(I, false, TexSign, "llvm.R600.ddx", "llvm.R600.ddx"); - return; - } - if (Name == "llvm.AMDGPU.ddy") { - ReplaceTexIntrinsic(I, false, TexSign, "llvm.R600.ddy", "llvm.R600.ddy"); - return; - } - } - -}; - -char R600TextureIntrinsicsReplacer::ID = 0; - -} - -FunctionPass *llvm::createR600TextureIntrinsicsReplacer() { - return new R600TextureIntrinsicsReplacer(); -} |