From ac76e02882d94c1cda499916d1696968a5428478 Mon Sep 17 00:00:00 2001 From: Chandler Carruth Date: Thu, 22 Jan 2015 03:34:54 +0000 Subject: [PATCH] [canonicalize] Move a helper function further up the file so it can be used earlier. NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226777 91177308-0d34-0410-b5e6-96231b3b80d8 --- .../InstCombineLoadStoreAlloca.cpp | 94 +++++++++---------- 1 file changed, 47 insertions(+), 47 deletions(-) diff --git a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp index 2ee04c1272e..56212b04eb0 100644 --- a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp +++ b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp @@ -344,6 +344,53 @@ static LoadInst *combineLoadToNewType(InstCombiner &IC, LoadInst &LI, Type *NewT return NewLoad; } +/// \brief Combine a store to a new type. +/// +/// Returns the newly created store instruction. +static StoreInst *combineStoreToNewValue(InstCombiner &IC, StoreInst &SI, Value *V) { + Value *Ptr = SI.getPointerOperand(); + unsigned AS = SI.getPointerAddressSpace(); + SmallVector, 8> MD; + SI.getAllMetadata(MD); + + StoreInst *NewStore = IC.Builder->CreateAlignedStore( + V, IC.Builder->CreateBitCast(Ptr, V->getType()->getPointerTo(AS)), + SI.getAlignment()); + for (const auto &MDPair : MD) { + unsigned ID = MDPair.first; + MDNode *N = MDPair.second; + // Note, essentially every kind of metadata should be preserved here! This + // routine is supposed to clone a store instruction changing *only its + // type*. The only metadata it makes sense to drop is metadata which is + // invalidated when the pointer type changes. This should essentially + // never be the case in LLVM, but we explicitly switch over only known + // metadata to be conservatively correct. If you are adding metadata to + // LLVM which pertains to stores, you almost certainly want to add it + // here. + switch (ID) { + case LLVMContext::MD_dbg: + case LLVMContext::MD_tbaa: + case LLVMContext::MD_prof: + case LLVMContext::MD_fpmath: + case LLVMContext::MD_tbaa_struct: + case LLVMContext::MD_alias_scope: + case LLVMContext::MD_noalias: + case LLVMContext::MD_nontemporal: + case LLVMContext::MD_mem_parallel_loop_access: + case LLVMContext::MD_nonnull: + // All of these directly apply. + NewStore->setMetadata(ID, N); + break; + + case LLVMContext::MD_invariant_load: + case LLVMContext::MD_range: + break; + } + } + + return NewStore; +} + /// \brief Combine loads to match the type of value their uses after looking /// through intervening bitcasts. /// @@ -489,53 +536,6 @@ Instruction *InstCombiner::visitLoadInst(LoadInst &LI) { return nullptr; } -/// \brief Combine a store to a new type. -/// -/// Returns the newly created store instruction. -static StoreInst *combineStoreToNewValue(InstCombiner &IC, StoreInst &SI, Value *V) { - Value *Ptr = SI.getPointerOperand(); - unsigned AS = SI.getPointerAddressSpace(); - SmallVector, 8> MD; - SI.getAllMetadata(MD); - - StoreInst *NewStore = IC.Builder->CreateAlignedStore( - V, IC.Builder->CreateBitCast(Ptr, V->getType()->getPointerTo(AS)), - SI.getAlignment()); - for (const auto &MDPair : MD) { - unsigned ID = MDPair.first; - MDNode *N = MDPair.second; - // Note, essentially every kind of metadata should be preserved here! This - // routine is supposed to clone a store instruction changing *only its - // type*. The only metadata it makes sense to drop is metadata which is - // invalidated when the pointer type changes. This should essentially - // never be the case in LLVM, but we explicitly switch over only known - // metadata to be conservatively correct. If you are adding metadata to - // LLVM which pertains to stores, you almost certainly want to add it - // here. - switch (ID) { - case LLVMContext::MD_dbg: - case LLVMContext::MD_tbaa: - case LLVMContext::MD_prof: - case LLVMContext::MD_fpmath: - case LLVMContext::MD_tbaa_struct: - case LLVMContext::MD_alias_scope: - case LLVMContext::MD_noalias: - case LLVMContext::MD_nontemporal: - case LLVMContext::MD_mem_parallel_loop_access: - case LLVMContext::MD_nonnull: - // All of these directly apply. - NewStore->setMetadata(ID, N); - break; - - case LLVMContext::MD_invariant_load: - case LLVMContext::MD_range: - break; - } - } - - return NewStore; -} - /// \brief Combine stores to match the type of value being stored. /// /// The core idea here is that the memory does not have any intrinsic type and