1 //===- SandboxVectorizer.cpp - Vectorizer based on Sandbox IR -------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/Transforms/Vectorize/SandboxVectorizer/SandboxVectorizer.h" 10 #include "llvm/Analysis/TargetTransformInfo.h" 11 #include "llvm/SandboxIR/SandboxIR.h" 12 13 using namespace llvm; 14 15 #define SV_NAME "sandbox-vectorizer" 16 #define DEBUG_TYPE SV_NAME 17 18 PreservedAnalyses SandboxVectorizerPass::run(Function &F, 19 FunctionAnalysisManager &AM) { 20 TTI = &AM.getResult<TargetIRAnalysis>(F); 21 22 bool Changed = runImpl(F); 23 if (!Changed) 24 return PreservedAnalyses::all(); 25 26 PreservedAnalyses PA; 27 PA.preserveSet<CFGAnalyses>(); 28 return PA; 29 } 30 31 bool SandboxVectorizerPass::runImpl(Function &F) { 32 // If the target claims to have no vector registers early return. 33 if (!TTI->getNumberOfRegisters(TTI->getRegisterClassForType(true))) { 34 LLVM_DEBUG(dbgs() << "SBVec: Target has no vector registers, return.\n"); 35 return false; 36 } 37 LLVM_DEBUG(dbgs() << "SBVec: Analyzing " << F.getName() << ".\n"); 38 // Early return if the attribute NoImplicitFloat is used. 39 if (F.hasFnAttribute(Attribute::NoImplicitFloat)) { 40 LLVM_DEBUG(dbgs() << "SBVec: NoImplicitFloat attribute, return.\n"); 41 return false; 42 } 43 44 sandboxir::Context Ctx(F.getContext()); 45 // Create SandboxIR for `F`. 46 sandboxir::Function &SBF = *Ctx.createFunction(&F); 47 // TODO: Initialize SBVec Pass Manager 48 (void)SBF; 49 50 return false; 51 } 52