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-rw-r--r--gnu/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp216
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diff --git a/gnu/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp b/gnu/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
deleted file mode 100644
index b0e9ac03612..00000000000
--- a/gnu/llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
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@@ -1,216 +0,0 @@
-//===- PreISelIntrinsicLowering.cpp - Pre-ISel intrinsic lowering pass ----===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass implements IR lowering for the llvm.load.relative and llvm.objc.*
-// intrinsics.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/PreISelIntrinsicLowering.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/IRBuilder.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/IR/User.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/Casting.h"
-
-using namespace llvm;
-
-static bool lowerLoadRelative(Function &F) {
- if (F.use_empty())
- return false;
-
- bool Changed = false;
- Type *Int32Ty = Type::getInt32Ty(F.getContext());
- Type *Int32PtrTy = Int32Ty->getPointerTo();
- Type *Int8Ty = Type::getInt8Ty(F.getContext());
-
- for (auto I = F.use_begin(), E = F.use_end(); I != E;) {
- auto CI = dyn_cast<CallInst>(I->getUser());
- ++I;
- if (!CI || CI->getCalledValue() != &F)
- continue;
-
- IRBuilder<> B(CI);
- Value *OffsetPtr =
- B.CreateGEP(Int8Ty, CI->getArgOperand(0), CI->getArgOperand(1));
- Value *OffsetPtrI32 = B.CreateBitCast(OffsetPtr, Int32PtrTy);
- Value *OffsetI32 = B.CreateAlignedLoad(OffsetPtrI32, 4);
-
- Value *ResultPtr = B.CreateGEP(Int8Ty, CI->getArgOperand(0), OffsetI32);
-
- CI->replaceAllUsesWith(ResultPtr);
- CI->eraseFromParent();
- Changed = true;
- }
-
- return Changed;
-}
-
-static bool lowerObjCCall(Function &F, const char *NewFn,
- bool setNonLazyBind = false) {
- if (F.use_empty())
- return false;
-
- // If we haven't already looked up this function, check to see if the
- // program already contains a function with this name.
- Module *M = F.getParent();
- Constant* FCache = M->getOrInsertFunction(NewFn, F.getFunctionType());
-
- if (Function* Fn = dyn_cast<Function>(FCache)) {
- Fn->setLinkage(F.getLinkage());
- if (setNonLazyBind && !Fn->isWeakForLinker()) {
- // If we have Native ARC, set nonlazybind attribute for these APIs for
- // performance.
- Fn->addFnAttr(Attribute::NonLazyBind);
- }
- }
-
- for (auto I = F.use_begin(), E = F.use_end(); I != E;) {
- auto *CI = dyn_cast<CallInst>(I->getUser());
- assert(CI->getCalledFunction() && "Cannot lower an indirect call!");
- ++I;
-
- IRBuilder<> Builder(CI->getParent(), CI->getIterator());
- SmallVector<Value *, 8> Args(CI->arg_begin(), CI->arg_end());
- CallInst *NewCI = Builder.CreateCall(FCache, Args);
- NewCI->setName(CI->getName());
- NewCI->setTailCallKind(CI->getTailCallKind());
- if (!CI->use_empty())
- CI->replaceAllUsesWith(NewCI);
- CI->eraseFromParent();
- }
-
- return true;
-}
-
-static bool lowerIntrinsics(Module &M) {
- bool Changed = false;
- for (Function &F : M) {
- if (F.getName().startswith("llvm.load.relative.")) {
- Changed |= lowerLoadRelative(F);
- continue;
- }
- switch (F.getIntrinsicID()) {
- default:
- break;
- case Intrinsic::objc_autorelease:
- Changed |= lowerObjCCall(F, "objc_autorelease");
- break;
- case Intrinsic::objc_autoreleasePoolPop:
- Changed |= lowerObjCCall(F, "objc_autoreleasePoolPop");
- break;
- case Intrinsic::objc_autoreleasePoolPush:
- Changed |= lowerObjCCall(F, "objc_autoreleasePoolPush");
- break;
- case Intrinsic::objc_autoreleaseReturnValue:
- Changed |= lowerObjCCall(F, "objc_autoreleaseReturnValue");
- break;
- case Intrinsic::objc_copyWeak:
- Changed |= lowerObjCCall(F, "objc_copyWeak");
- break;
- case Intrinsic::objc_destroyWeak:
- Changed |= lowerObjCCall(F, "objc_destroyWeak");
- break;
- case Intrinsic::objc_initWeak:
- Changed |= lowerObjCCall(F, "objc_initWeak");
- break;
- case Intrinsic::objc_loadWeak:
- Changed |= lowerObjCCall(F, "objc_loadWeak");
- break;
- case Intrinsic::objc_loadWeakRetained:
- Changed |= lowerObjCCall(F, "objc_loadWeakRetained");
- break;
- case Intrinsic::objc_moveWeak:
- Changed |= lowerObjCCall(F, "objc_moveWeak");
- break;
- case Intrinsic::objc_release:
- Changed |= lowerObjCCall(F, "objc_release", true);
- break;
- case Intrinsic::objc_retain:
- Changed |= lowerObjCCall(F, "objc_retain", true);
- break;
- case Intrinsic::objc_retainAutorelease:
- Changed |= lowerObjCCall(F, "objc_retainAutorelease");
- break;
- case Intrinsic::objc_retainAutoreleaseReturnValue:
- Changed |= lowerObjCCall(F, "objc_retainAutoreleaseReturnValue");
- break;
- case Intrinsic::objc_retainAutoreleasedReturnValue:
- Changed |= lowerObjCCall(F, "objc_retainAutoreleasedReturnValue");
- break;
- case Intrinsic::objc_retainBlock:
- Changed |= lowerObjCCall(F, "objc_retainBlock");
- break;
- case Intrinsic::objc_storeStrong:
- Changed |= lowerObjCCall(F, "objc_storeStrong");
- break;
- case Intrinsic::objc_storeWeak:
- Changed |= lowerObjCCall(F, "objc_storeWeak");
- break;
- case Intrinsic::objc_unsafeClaimAutoreleasedReturnValue:
- Changed |= lowerObjCCall(F, "objc_unsafeClaimAutoreleasedReturnValue");
- break;
- case Intrinsic::objc_retainedObject:
- Changed |= lowerObjCCall(F, "objc_retainedObject");
- break;
- case Intrinsic::objc_unretainedObject:
- Changed |= lowerObjCCall(F, "objc_unretainedObject");
- break;
- case Intrinsic::objc_unretainedPointer:
- Changed |= lowerObjCCall(F, "objc_unretainedPointer");
- break;
- case Intrinsic::objc_retain_autorelease:
- Changed |= lowerObjCCall(F, "objc_retain_autorelease");
- break;
- case Intrinsic::objc_sync_enter:
- Changed |= lowerObjCCall(F, "objc_sync_enter");
- break;
- case Intrinsic::objc_sync_exit:
- Changed |= lowerObjCCall(F, "objc_sync_exit");
- break;
- }
- }
- return Changed;
-}
-
-namespace {
-
-class PreISelIntrinsicLoweringLegacyPass : public ModulePass {
-public:
- static char ID;
-
- PreISelIntrinsicLoweringLegacyPass() : ModulePass(ID) {}
-
- bool runOnModule(Module &M) override { return lowerIntrinsics(M); }
-};
-
-} // end anonymous namespace
-
-char PreISelIntrinsicLoweringLegacyPass::ID;
-
-INITIALIZE_PASS(PreISelIntrinsicLoweringLegacyPass,
- "pre-isel-intrinsic-lowering", "Pre-ISel Intrinsic Lowering",
- false, false)
-
-ModulePass *llvm::createPreISelIntrinsicLoweringPass() {
- return new PreISelIntrinsicLoweringLegacyPass;
-}
-
-PreservedAnalyses PreISelIntrinsicLoweringPass::run(Module &M,
- ModuleAnalysisManager &AM) {
- if (!lowerIntrinsics(M))
- return PreservedAnalyses::all();
- else
- return PreservedAnalyses::none();
-}
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