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https://github.com/c64scene-ar/llvm-6502.git
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7bdf6b00e0
interfaces which could be extracted from it, and must be provided on construction, to a chained analysis group. The end goal here is that TTI works much like AA -- there is a baseline "no-op" and target independent pass which is in the group, and each target can expose a target-specific pass in the group. These passes will naturally chain allowing each target-specific pass to delegate to the generic pass as needed. In particular, this will allow a much simpler interface for passes that would like to use TTI -- they can have a hard dependency on TTI and it will just be satisfied by the stub implementation when that is all that is available. This patch is a WIP however. In particular, the "stub" pass is actually the one and only pass, and everything there is implemented by delegating to the target-provided interfaces. As a consequence the tools still have to explicitly construct the pass. Switching targets to provide custom passes and sinking the stub behavior into the NoTTI pass is the next step. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171621 91177308-0d34-0410-b5e6-96231b3b80d8
117 lines
3.8 KiB
C++
117 lines
3.8 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/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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void llvm::initializeTarget(PassRegistry &Registry) {
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initializeDataLayoutPass(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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unwrap(PM)->add(new DataLayout(*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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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)->getCallFrameTypeAlignment(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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