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Eventually DataLayoutPass should go away, but for now that is the only easy way to get a DataLayout in some APIs. This patch only changes the ones that have easy access to a Module. One interesting issue with sometimes using DataLayoutPass and sometimes fetching it from the Module is that we have to make sure they are equivalent. We can get most of the way there by always constructing the pass with a Module. In fact, the pass could be changed to point to an external DataLayout instead of owning one to make this stricter. Unfortunately, the C api passes a DataLayout, so it has to be up to the caller to make sure the pass and the module are in sync. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202204 91177308-0d34-0410-b5e6-96231b3b80d8
145 lines
4.7 KiB
C++
145 lines
4.7 KiB
C++
//===-- Target.cpp --------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the common infrastructure (including C bindings) for
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// libLLVMTarget.a, which implements target information.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm-c/Target.h"
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#include "llvm-c/Initialization.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Value.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/PassManager.h"
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#include "llvm/Target/TargetLibraryInfo.h"
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#include <cstring>
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using namespace llvm;
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inline DataLayout *unwrap(LLVMTargetDataRef P) {
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return reinterpret_cast<DataLayout*>(P);
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}
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inline LLVMTargetDataRef wrap(const DataLayout *P) {
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return reinterpret_cast<LLVMTargetDataRef>(const_cast<DataLayout*>(P));
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}
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inline TargetLibraryInfo *unwrap(LLVMTargetLibraryInfoRef P) {
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return reinterpret_cast<TargetLibraryInfo*>(P);
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}
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inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfo *P) {
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TargetLibraryInfo *X = const_cast<TargetLibraryInfo*>(P);
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return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
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}
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void llvm::initializeTarget(PassRegistry &Registry) {
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initializeDataLayoutPassPass(Registry);
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initializeTargetLibraryInfoPass(Registry);
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}
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void LLVMInitializeTarget(LLVMPassRegistryRef R) {
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initializeTarget(*unwrap(R));
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}
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LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep) {
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return wrap(new DataLayout(StringRep));
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}
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void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM) {
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// The DataLayoutPass must now be in sync with the module. Unfortunatelly we
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// cannot enforce that from the C api.
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unwrap(PM)->add(new DataLayoutPass(*unwrap(TD)));
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}
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void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
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LLVMPassManagerRef PM) {
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unwrap(PM)->add(new TargetLibraryInfo(*unwrap(TLI)));
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}
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char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD) {
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std::string StringRep = unwrap(TD)->getStringRepresentation();
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return strdup(StringRep.c_str());
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}
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LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD) {
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return unwrap(TD)->isLittleEndian() ? LLVMLittleEndian : LLVMBigEndian;
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}
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unsigned LLVMPointerSize(LLVMTargetDataRef TD) {
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return unwrap(TD)->getPointerSize(0);
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}
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unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS) {
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return unwrap(TD)->getPointerSize(AS);
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}
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LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD) {
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return wrap(unwrap(TD)->getIntPtrType(getGlobalContext()));
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}
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LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS) {
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return wrap(unwrap(TD)->getIntPtrType(getGlobalContext(), AS));
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}
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LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD) {
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return wrap(unwrap(TD)->getIntPtrType(*unwrap(C)));
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}
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LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD, unsigned AS) {
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return wrap(unwrap(TD)->getIntPtrType(*unwrap(C), AS));
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}
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unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getTypeSizeInBits(unwrap(Ty));
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}
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unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getTypeStoreSize(unwrap(Ty));
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}
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unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getTypeAllocSize(unwrap(Ty));
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}
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unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
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}
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unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getABITypeAlignment(unwrap(Ty));
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}
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unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty) {
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return unwrap(TD)->getPrefTypeAlignment(unwrap(Ty));
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}
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unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
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LLVMValueRef GlobalVar) {
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return unwrap(TD)->getPreferredAlignment(unwrap<GlobalVariable>(GlobalVar));
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}
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unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
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unsigned long long Offset) {
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StructType *STy = unwrap<StructType>(StructTy);
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return unwrap(TD)->getStructLayout(STy)->getElementContainingOffset(Offset);
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}
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unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
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unsigned Element) {
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StructType *STy = unwrap<StructType>(StructTy);
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return unwrap(TD)->getStructLayout(STy)->getElementOffset(Element);
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}
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void LLVMDisposeTargetData(LLVMTargetDataRef TD) {
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delete unwrap(TD);
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}
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