mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
3ea76d99f7
Summary: - Add a missing getter for module-level inline assembly - Add a missing append function for module-level inline assembly - Deprecate LLVMSetModuleInlineAsm and replace it with LLVMSetModuleInlineAsm2 which takes an explicit length parameter - Deprecate LLVMConstInlineAsm and replace it with LLVMGetInlineAsm, a function that allows passing a dialect and is not mis-classified as a constant operation Reviewers: whitequark, deadalnix Reviewed By: whitequark Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D45346 llvm-svn: 329369
1021 lines
33 KiB
C++
1021 lines
33 KiB
C++
//===-- echo.cpp - tool for testing libLLVM and llvm-c API ----------------===//
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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 --echo command in llvm-c-test.
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//
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// This command uses the C API to read a module and output an exact copy of it
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// as output. It is used to check that the resulting module matches the input
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// to validate that the C API can read and write modules properly.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm-c-test.h"
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#include "llvm-c/Target.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/ErrorHandling.h"
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#include <stdio.h>
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#include <stdlib.h>
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using namespace llvm;
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// Provide DenseMapInfo for C API opaque types.
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template<typename T>
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struct CAPIDenseMap {};
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// The default DenseMapInfo require to know about pointer alignement.
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// Because the C API uses opaques pointer types, their alignement is unknown.
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// As a result, we need to roll out our own implementation.
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template<typename T>
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struct CAPIDenseMap<T*> {
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struct CAPIDenseMapInfo {
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static inline T* getEmptyKey() {
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uintptr_t Val = static_cast<uintptr_t>(-1);
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return reinterpret_cast<T*>(Val);
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}
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static inline T* getTombstoneKey() {
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uintptr_t Val = static_cast<uintptr_t>(-2);
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return reinterpret_cast<T*>(Val);
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}
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static unsigned getHashValue(const T *PtrVal) {
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return hash_value(PtrVal);
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}
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static bool isEqual(const T *LHS, const T *RHS) { return LHS == RHS; }
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};
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typedef DenseMap<T*, T*, CAPIDenseMapInfo> Map;
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};
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typedef CAPIDenseMap<LLVMValueRef>::Map ValueMap;
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typedef CAPIDenseMap<LLVMBasicBlockRef>::Map BasicBlockMap;
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struct TypeCloner {
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LLVMModuleRef M;
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LLVMContextRef Ctx;
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TypeCloner(LLVMModuleRef M): M(M), Ctx(LLVMGetModuleContext(M)) {}
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LLVMTypeRef Clone(LLVMValueRef Src) {
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return Clone(LLVMTypeOf(Src));
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}
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LLVMTypeRef Clone(LLVMTypeRef Src) {
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LLVMTypeKind Kind = LLVMGetTypeKind(Src);
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switch (Kind) {
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case LLVMVoidTypeKind:
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return LLVMVoidTypeInContext(Ctx);
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case LLVMHalfTypeKind:
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return LLVMHalfTypeInContext(Ctx);
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case LLVMFloatTypeKind:
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return LLVMFloatTypeInContext(Ctx);
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case LLVMDoubleTypeKind:
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return LLVMDoubleTypeInContext(Ctx);
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case LLVMX86_FP80TypeKind:
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return LLVMX86FP80TypeInContext(Ctx);
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case LLVMFP128TypeKind:
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return LLVMFP128TypeInContext(Ctx);
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case LLVMPPC_FP128TypeKind:
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return LLVMPPCFP128TypeInContext(Ctx);
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case LLVMLabelTypeKind:
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return LLVMLabelTypeInContext(Ctx);
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case LLVMIntegerTypeKind:
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return LLVMIntTypeInContext(Ctx, LLVMGetIntTypeWidth(Src));
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case LLVMFunctionTypeKind: {
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unsigned ParamCount = LLVMCountParamTypes(Src);
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LLVMTypeRef* Params = nullptr;
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if (ParamCount > 0) {
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Params = static_cast<LLVMTypeRef*>(
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safe_malloc(ParamCount * sizeof(LLVMTypeRef)));
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LLVMGetParamTypes(Src, Params);
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for (unsigned i = 0; i < ParamCount; i++)
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Params[i] = Clone(Params[i]);
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}
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LLVMTypeRef FunTy = LLVMFunctionType(Clone(LLVMGetReturnType(Src)),
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Params, ParamCount,
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LLVMIsFunctionVarArg(Src));
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if (ParamCount > 0)
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free(Params);
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return FunTy;
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}
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case LLVMStructTypeKind: {
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LLVMTypeRef S = nullptr;
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const char *Name = LLVMGetStructName(Src);
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if (Name) {
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S = LLVMGetTypeByName(M, Name);
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if (S)
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return S;
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S = LLVMStructCreateNamed(Ctx, Name);
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if (LLVMIsOpaqueStruct(Src))
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return S;
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}
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unsigned EltCount = LLVMCountStructElementTypes(Src);
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SmallVector<LLVMTypeRef, 8> Elts;
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for (unsigned i = 0; i < EltCount; i++)
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Elts.push_back(Clone(LLVMStructGetTypeAtIndex(Src, i)));
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if (Name)
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LLVMStructSetBody(S, Elts.data(), EltCount, LLVMIsPackedStruct(Src));
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else
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S = LLVMStructTypeInContext(Ctx, Elts.data(), EltCount,
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LLVMIsPackedStruct(Src));
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return S;
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}
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case LLVMArrayTypeKind:
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return LLVMArrayType(
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Clone(LLVMGetElementType(Src)),
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LLVMGetArrayLength(Src)
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);
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case LLVMPointerTypeKind:
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return LLVMPointerType(
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Clone(LLVMGetElementType(Src)),
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LLVMGetPointerAddressSpace(Src)
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);
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case LLVMVectorTypeKind:
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return LLVMVectorType(
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Clone(LLVMGetElementType(Src)),
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LLVMGetVectorSize(Src)
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);
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case LLVMMetadataTypeKind:
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return LLVMMetadataTypeInContext(Ctx);
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case LLVMX86_MMXTypeKind:
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return LLVMX86MMXTypeInContext(Ctx);
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case LLVMTokenTypeKind:
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return LLVMTokenTypeInContext(Ctx);
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}
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fprintf(stderr, "%d is not a supported typekind\n", Kind);
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exit(-1);
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}
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};
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static ValueMap clone_params(LLVMValueRef Src, LLVMValueRef Dst) {
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unsigned Count = LLVMCountParams(Src);
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if (Count != LLVMCountParams(Dst))
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report_fatal_error("Parameter count mismatch");
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ValueMap VMap;
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if (Count == 0)
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return VMap;
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LLVMValueRef SrcFirst = LLVMGetFirstParam(Src);
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LLVMValueRef DstFirst = LLVMGetFirstParam(Dst);
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LLVMValueRef SrcLast = LLVMGetLastParam(Src);
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LLVMValueRef DstLast = LLVMGetLastParam(Dst);
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LLVMValueRef SrcCur = SrcFirst;
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LLVMValueRef DstCur = DstFirst;
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LLVMValueRef SrcNext = nullptr;
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LLVMValueRef DstNext = nullptr;
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while (true) {
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const char *Name = LLVMGetValueName(SrcCur);
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LLVMSetValueName(DstCur, Name);
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VMap[SrcCur] = DstCur;
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Count--;
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SrcNext = LLVMGetNextParam(SrcCur);
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DstNext = LLVMGetNextParam(DstCur);
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if (SrcNext == nullptr && DstNext == nullptr) {
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if (SrcCur != SrcLast)
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report_fatal_error("SrcLast param does not match End");
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if (DstCur != DstLast)
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report_fatal_error("DstLast param does not match End");
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break;
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}
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if (SrcNext == nullptr)
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report_fatal_error("SrcNext was unexpectedly null");
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if (DstNext == nullptr)
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report_fatal_error("DstNext was unexpectedly null");
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LLVMValueRef SrcPrev = LLVMGetPreviousParam(SrcNext);
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if (SrcPrev != SrcCur)
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report_fatal_error("SrcNext.Previous param is not Current");
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LLVMValueRef DstPrev = LLVMGetPreviousParam(DstNext);
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if (DstPrev != DstCur)
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report_fatal_error("DstNext.Previous param is not Current");
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SrcCur = SrcNext;
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DstCur = DstNext;
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}
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if (Count != 0)
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report_fatal_error("Parameter count does not match iteration");
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return VMap;
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}
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static void check_value_kind(LLVMValueRef V, LLVMValueKind K) {
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if (LLVMGetValueKind(V) != K)
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report_fatal_error("LLVMGetValueKind returned incorrect type");
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}
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static LLVMValueRef clone_constant_impl(LLVMValueRef Cst, LLVMModuleRef M);
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static LLVMValueRef clone_constant(LLVMValueRef Cst, LLVMModuleRef M) {
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LLVMValueRef Ret = clone_constant_impl(Cst, M);
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check_value_kind(Ret, LLVMGetValueKind(Cst));
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return Ret;
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}
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static LLVMValueRef clone_constant_impl(LLVMValueRef Cst, LLVMModuleRef M) {
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if (!LLVMIsAConstant(Cst))
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report_fatal_error("Expected a constant");
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// Maybe it is a symbol
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if (LLVMIsAGlobalValue(Cst)) {
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const char *Name = LLVMGetValueName(Cst);
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// Try function
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if (LLVMIsAFunction(Cst)) {
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check_value_kind(Cst, LLVMFunctionValueKind);
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LLVMValueRef Dst = LLVMGetNamedFunction(M, Name);
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if (Dst)
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return Dst;
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report_fatal_error("Could not find function");
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}
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// Try global variable
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if (LLVMIsAGlobalVariable(Cst)) {
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check_value_kind(Cst, LLVMGlobalVariableValueKind);
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LLVMValueRef Dst = LLVMGetNamedGlobal(M, Name);
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if (Dst)
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return Dst;
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report_fatal_error("Could not find function");
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}
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fprintf(stderr, "Could not find @%s\n", Name);
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exit(-1);
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}
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// Try integer literal
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if (LLVMIsAConstantInt(Cst)) {
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check_value_kind(Cst, LLVMConstantIntValueKind);
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return LLVMConstInt(TypeCloner(M).Clone(Cst),
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LLVMConstIntGetZExtValue(Cst), false);
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}
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// Try zeroinitializer
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if (LLVMIsAConstantAggregateZero(Cst)) {
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check_value_kind(Cst, LLVMConstantAggregateZeroValueKind);
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return LLVMConstNull(TypeCloner(M).Clone(Cst));
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}
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// Try constant array
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if (LLVMIsAConstantArray(Cst)) {
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check_value_kind(Cst, LLVMConstantArrayValueKind);
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LLVMTypeRef Ty = TypeCloner(M).Clone(Cst);
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unsigned EltCount = LLVMGetArrayLength(Ty);
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SmallVector<LLVMValueRef, 8> Elts;
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for (unsigned i = 0; i < EltCount; i++)
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Elts.push_back(clone_constant(LLVMGetOperand(Cst, i), M));
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return LLVMConstArray(LLVMGetElementType(Ty), Elts.data(), EltCount);
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}
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// Try contant data array
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if (LLVMIsAConstantDataArray(Cst)) {
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check_value_kind(Cst, LLVMConstantDataArrayValueKind);
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LLVMTypeRef Ty = TypeCloner(M).Clone(Cst);
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unsigned EltCount = LLVMGetArrayLength(Ty);
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SmallVector<LLVMValueRef, 8> Elts;
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for (unsigned i = 0; i < EltCount; i++)
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Elts.push_back(clone_constant(LLVMGetElementAsConstant(Cst, i), M));
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return LLVMConstArray(LLVMGetElementType(Ty), Elts.data(), EltCount);
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}
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// Try constant struct
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if (LLVMIsAConstantStruct(Cst)) {
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check_value_kind(Cst, LLVMConstantStructValueKind);
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LLVMTypeRef Ty = TypeCloner(M).Clone(Cst);
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unsigned EltCount = LLVMCountStructElementTypes(Ty);
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SmallVector<LLVMValueRef, 8> Elts;
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for (unsigned i = 0; i < EltCount; i++)
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Elts.push_back(clone_constant(LLVMGetOperand(Cst, i), M));
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if (LLVMGetStructName(Ty))
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return LLVMConstNamedStruct(Ty, Elts.data(), EltCount);
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return LLVMConstStructInContext(LLVMGetModuleContext(M), Elts.data(),
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EltCount, LLVMIsPackedStruct(Ty));
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}
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// Try undef
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if (LLVMIsUndef(Cst)) {
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check_value_kind(Cst, LLVMUndefValueValueKind);
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return LLVMGetUndef(TypeCloner(M).Clone(Cst));
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}
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// Try null
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if (LLVMIsNull(Cst)) {
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check_value_kind(Cst, LLVMConstantTokenNoneValueKind);
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LLVMTypeRef Ty = TypeCloner(M).Clone(Cst);
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return LLVMConstNull(Ty);
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}
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// Try float literal
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if (LLVMIsAConstantFP(Cst)) {
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check_value_kind(Cst, LLVMConstantFPValueKind);
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report_fatal_error("ConstantFP is not supported");
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}
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// This kind of constant is not supported
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if (!LLVMIsAConstantExpr(Cst))
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report_fatal_error("Expected a constant expression");
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// At this point, it must be a constant expression
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check_value_kind(Cst, LLVMConstantExprValueKind);
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LLVMOpcode Op = LLVMGetConstOpcode(Cst);
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switch(Op) {
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case LLVMBitCast:
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return LLVMConstBitCast(clone_constant(LLVMGetOperand(Cst, 0), M),
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TypeCloner(M).Clone(Cst));
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default:
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fprintf(stderr, "%d is not a supported opcode\n", Op);
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exit(-1);
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}
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}
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struct FunCloner {
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LLVMValueRef Fun;
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LLVMModuleRef M;
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ValueMap VMap;
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BasicBlockMap BBMap;
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FunCloner(LLVMValueRef Src, LLVMValueRef Dst): Fun(Dst),
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M(LLVMGetGlobalParent(Fun)), VMap(clone_params(Src, Dst)) {}
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LLVMTypeRef CloneType(LLVMTypeRef Src) {
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return TypeCloner(M).Clone(Src);
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}
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LLVMTypeRef CloneType(LLVMValueRef Src) {
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return TypeCloner(M).Clone(Src);
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}
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// Try to clone everything in the llvm::Value hierarchy.
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LLVMValueRef CloneValue(LLVMValueRef Src) {
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// First, the value may be constant.
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if (LLVMIsAConstant(Src))
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return clone_constant(Src, M);
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// Function argument should always be in the map already.
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auto i = VMap.find(Src);
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if (i != VMap.end())
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return i->second;
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if (!LLVMIsAInstruction(Src))
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report_fatal_error("Expected an instruction");
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auto Ctx = LLVMGetModuleContext(M);
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auto Builder = LLVMCreateBuilderInContext(Ctx);
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auto BB = DeclareBB(LLVMGetInstructionParent(Src));
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LLVMPositionBuilderAtEnd(Builder, BB);
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auto Dst = CloneInstruction(Src, Builder);
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LLVMDisposeBuilder(Builder);
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return Dst;
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}
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void CloneAttrs(LLVMValueRef Src, LLVMValueRef Dst) {
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auto Ctx = LLVMGetModuleContext(M);
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int ArgCount = LLVMGetNumArgOperands(Src);
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for (int i = LLVMAttributeReturnIndex; i <= ArgCount; i++) {
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for (unsigned k = 0, e = LLVMGetLastEnumAttributeKind(); k < e; ++k) {
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if (auto SrcA = LLVMGetCallSiteEnumAttribute(Src, i, k)) {
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auto Val = LLVMGetEnumAttributeValue(SrcA);
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auto A = LLVMCreateEnumAttribute(Ctx, k, Val);
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LLVMAddCallSiteAttribute(Dst, i, A);
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}
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}
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}
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}
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LLVMValueRef CloneInstruction(LLVMValueRef Src, LLVMBuilderRef Builder) {
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check_value_kind(Src, LLVMInstructionValueKind);
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if (!LLVMIsAInstruction(Src))
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report_fatal_error("Expected an instruction");
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const char *Name = LLVMGetValueName(Src);
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// Check if this is something we already computed.
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{
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auto i = VMap.find(Src);
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if (i != VMap.end()) {
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// If we have a hit, it means we already generated the instruction
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// as a dependancy to somethign else. We need to make sure
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// it is ordered properly.
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auto I = i->second;
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LLVMInstructionRemoveFromParent(I);
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LLVMInsertIntoBuilderWithName(Builder, I, Name);
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return I;
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}
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}
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// We tried everything, it must be an instruction
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// that hasn't been generated already.
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LLVMValueRef Dst = nullptr;
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LLVMOpcode Op = LLVMGetInstructionOpcode(Src);
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switch(Op) {
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case LLVMRet: {
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int OpCount = LLVMGetNumOperands(Src);
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if (OpCount == 0)
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Dst = LLVMBuildRetVoid(Builder);
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else
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Dst = LLVMBuildRet(Builder, CloneValue(LLVMGetOperand(Src, 0)));
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break;
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}
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case LLVMBr: {
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if (!LLVMIsConditional(Src)) {
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LLVMValueRef SrcOp = LLVMGetOperand(Src, 0);
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LLVMBasicBlockRef SrcBB = LLVMValueAsBasicBlock(SrcOp);
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Dst = LLVMBuildBr(Builder, DeclareBB(SrcBB));
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break;
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}
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LLVMValueRef Cond = LLVMGetCondition(Src);
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LLVMValueRef Else = LLVMGetOperand(Src, 1);
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LLVMBasicBlockRef ElseBB = DeclareBB(LLVMValueAsBasicBlock(Else));
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LLVMValueRef Then = LLVMGetOperand(Src, 2);
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LLVMBasicBlockRef ThenBB = DeclareBB(LLVMValueAsBasicBlock(Then));
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Dst = LLVMBuildCondBr(Builder, CloneValue(Cond), ThenBB, ElseBB);
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break;
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}
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case LLVMSwitch:
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case LLVMIndirectBr:
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break;
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case LLVMInvoke: {
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SmallVector<LLVMValueRef, 8> Args;
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int ArgCount = LLVMGetNumArgOperands(Src);
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for (int i = 0; i < ArgCount; i++)
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Args.push_back(CloneValue(LLVMGetOperand(Src, i)));
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LLVMValueRef Fn = CloneValue(LLVMGetCalledValue(Src));
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LLVMBasicBlockRef Then = DeclareBB(LLVMGetNormalDest(Src));
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LLVMBasicBlockRef Unwind = DeclareBB(LLVMGetUnwindDest(Src));
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Dst = LLVMBuildInvoke(Builder, Fn, Args.data(), ArgCount,
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Then, Unwind, Name);
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CloneAttrs(Src, Dst);
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break;
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}
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case LLVMUnreachable:
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Dst = LLVMBuildUnreachable(Builder);
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break;
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case LLVMAdd: {
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LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildAdd(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMSub: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildSub(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMMul: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildMul(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMUDiv: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildUDiv(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMSDiv: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildSDiv(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMURem: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildURem(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMSRem: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildSRem(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMShl: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildShl(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMLShr: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildLShr(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMAShr: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildAShr(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMAnd: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildAnd(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMOr: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildOr(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMXor: {
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildXor(Builder, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMAlloca: {
|
|
LLVMTypeRef Ty = CloneType(LLVMGetAllocatedType(Src));
|
|
Dst = LLVMBuildAlloca(Builder, Ty, Name);
|
|
break;
|
|
}
|
|
case LLVMLoad: {
|
|
LLVMValueRef Ptr = CloneValue(LLVMGetOperand(Src, 0));
|
|
Dst = LLVMBuildLoad(Builder, Ptr, Name);
|
|
LLVMSetAlignment(Dst, LLVMGetAlignment(Src));
|
|
break;
|
|
}
|
|
case LLVMStore: {
|
|
LLVMValueRef Val = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef Ptr = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildStore(Builder, Val, Ptr);
|
|
LLVMSetAlignment(Dst, LLVMGetAlignment(Src));
|
|
break;
|
|
}
|
|
case LLVMGetElementPtr: {
|
|
LLVMValueRef Ptr = CloneValue(LLVMGetOperand(Src, 0));
|
|
SmallVector<LLVMValueRef, 8> Idx;
|
|
int NumIdx = LLVMGetNumIndices(Src);
|
|
for (int i = 1; i <= NumIdx; i++)
|
|
Idx.push_back(CloneValue(LLVMGetOperand(Src, i)));
|
|
if (LLVMIsInBounds(Src))
|
|
Dst = LLVMBuildInBoundsGEP(Builder, Ptr, Idx.data(), NumIdx, Name);
|
|
else
|
|
Dst = LLVMBuildGEP(Builder, Ptr, Idx.data(), NumIdx, Name);
|
|
break;
|
|
}
|
|
case LLVMAtomicCmpXchg: {
|
|
LLVMValueRef Ptr = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef Cmp = CloneValue(LLVMGetOperand(Src, 1));
|
|
LLVMValueRef New = CloneValue(LLVMGetOperand(Src, 2));
|
|
LLVMAtomicOrdering Succ = LLVMGetCmpXchgSuccessOrdering(Src);
|
|
LLVMAtomicOrdering Fail = LLVMGetCmpXchgFailureOrdering(Src);
|
|
LLVMBool SingleThread = LLVMIsAtomicSingleThread(Src);
|
|
|
|
Dst = LLVMBuildAtomicCmpXchg(Builder, Ptr, Cmp, New, Succ, Fail,
|
|
SingleThread);
|
|
} break;
|
|
case LLVMBitCast: {
|
|
LLVMValueRef V = CloneValue(LLVMGetOperand(Src, 0));
|
|
Dst = LLVMBuildBitCast(Builder, V, CloneType(Src), Name);
|
|
break;
|
|
}
|
|
case LLVMICmp: {
|
|
LLVMIntPredicate Pred = LLVMGetICmpPredicate(Src);
|
|
LLVMValueRef LHS = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef RHS = CloneValue(LLVMGetOperand(Src, 1));
|
|
Dst = LLVMBuildICmp(Builder, Pred, LHS, RHS, Name);
|
|
break;
|
|
}
|
|
case LLVMPHI: {
|
|
// We need to aggressively set things here because of loops.
|
|
VMap[Src] = Dst = LLVMBuildPhi(Builder, CloneType(Src), Name);
|
|
|
|
SmallVector<LLVMValueRef, 8> Values;
|
|
SmallVector<LLVMBasicBlockRef, 8> Blocks;
|
|
|
|
unsigned IncomingCount = LLVMCountIncoming(Src);
|
|
for (unsigned i = 0; i < IncomingCount; ++i) {
|
|
Blocks.push_back(DeclareBB(LLVMGetIncomingBlock(Src, i)));
|
|
Values.push_back(CloneValue(LLVMGetIncomingValue(Src, i)));
|
|
}
|
|
|
|
LLVMAddIncoming(Dst, Values.data(), Blocks.data(), IncomingCount);
|
|
return Dst;
|
|
}
|
|
case LLVMCall: {
|
|
SmallVector<LLVMValueRef, 8> Args;
|
|
int ArgCount = LLVMGetNumArgOperands(Src);
|
|
for (int i = 0; i < ArgCount; i++)
|
|
Args.push_back(CloneValue(LLVMGetOperand(Src, i)));
|
|
LLVMValueRef Fn = CloneValue(LLVMGetCalledValue(Src));
|
|
Dst = LLVMBuildCall(Builder, Fn, Args.data(), ArgCount, Name);
|
|
LLVMSetTailCall(Dst, LLVMIsTailCall(Src));
|
|
CloneAttrs(Src, Dst);
|
|
break;
|
|
}
|
|
case LLVMResume: {
|
|
Dst = LLVMBuildResume(Builder, CloneValue(LLVMGetOperand(Src, 0)));
|
|
break;
|
|
}
|
|
case LLVMLandingPad: {
|
|
// The landing pad API is a bit screwed up for historical reasons.
|
|
Dst = LLVMBuildLandingPad(Builder, CloneType(Src), nullptr, 0, Name);
|
|
unsigned NumClauses = LLVMGetNumClauses(Src);
|
|
for (unsigned i = 0; i < NumClauses; ++i)
|
|
LLVMAddClause(Dst, CloneValue(LLVMGetClause(Src, i)));
|
|
LLVMSetCleanup(Dst, LLVMIsCleanup(Src));
|
|
break;
|
|
}
|
|
case LLVMCleanupRet: {
|
|
LLVMValueRef CatchPad = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMBasicBlockRef Unwind = nullptr;
|
|
if (LLVMBasicBlockRef UDest = LLVMGetUnwindDest(Src))
|
|
Unwind = DeclareBB(UDest);
|
|
Dst = LLVMBuildCleanupRet(Builder, CatchPad, Unwind);
|
|
break;
|
|
}
|
|
case LLVMCatchRet: {
|
|
LLVMValueRef CatchPad = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMBasicBlockRef SuccBB = DeclareBB(LLVMGetSuccessor(Src, 0));
|
|
Dst = LLVMBuildCatchRet(Builder, CatchPad, SuccBB);
|
|
break;
|
|
}
|
|
case LLVMCatchPad: {
|
|
LLVMValueRef ParentPad = CloneValue(LLVMGetParentCatchSwitch(Src));
|
|
SmallVector<LLVMValueRef, 8> Args;
|
|
int ArgCount = LLVMGetNumArgOperands(Src);
|
|
for (int i = 0; i < ArgCount; i++)
|
|
Args.push_back(CloneValue(LLVMGetOperand(Src, i)));
|
|
Dst = LLVMBuildCatchPad(Builder, ParentPad,
|
|
Args.data(), ArgCount, Name);
|
|
break;
|
|
}
|
|
case LLVMCleanupPad: {
|
|
LLVMValueRef ParentPad = CloneValue(LLVMGetOperand(Src, 0));
|
|
SmallVector<LLVMValueRef, 8> Args;
|
|
int ArgCount = LLVMGetNumArgOperands(Src);
|
|
for (int i = 0; i < ArgCount; i++)
|
|
Args.push_back(CloneValue(LLVMGetArgOperand(Src, i)));
|
|
Dst = LLVMBuildCleanupPad(Builder, ParentPad,
|
|
Args.data(), ArgCount, Name);
|
|
break;
|
|
}
|
|
case LLVMCatchSwitch: {
|
|
LLVMValueRef ParentPad = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMBasicBlockRef UnwindBB = nullptr;
|
|
if (LLVMBasicBlockRef UDest = LLVMGetUnwindDest(Src)) {
|
|
UnwindBB = DeclareBB(UDest);
|
|
}
|
|
unsigned NumHandlers = LLVMGetNumHandlers(Src);
|
|
Dst = LLVMBuildCatchSwitch(Builder, ParentPad, UnwindBB, NumHandlers, Name);
|
|
if (NumHandlers > 0) {
|
|
LLVMBasicBlockRef *Handlers = static_cast<LLVMBasicBlockRef*>(
|
|
safe_malloc(NumHandlers * sizeof(LLVMBasicBlockRef)));
|
|
LLVMGetHandlers(Src, Handlers);
|
|
for (unsigned i = 0; i < NumHandlers; i++)
|
|
LLVMAddHandler(Dst, DeclareBB(Handlers[i]));
|
|
free(Handlers);
|
|
}
|
|
break;
|
|
}
|
|
case LLVMExtractValue: {
|
|
LLVMValueRef Agg = CloneValue(LLVMGetOperand(Src, 0));
|
|
if (LLVMGetNumIndices(Src) != 1)
|
|
report_fatal_error("Expected only one indice");
|
|
auto I = LLVMGetIndices(Src)[0];
|
|
Dst = LLVMBuildExtractValue(Builder, Agg, I, Name);
|
|
break;
|
|
}
|
|
case LLVMInsertValue: {
|
|
LLVMValueRef Agg = CloneValue(LLVMGetOperand(Src, 0));
|
|
LLVMValueRef V = CloneValue(LLVMGetOperand(Src, 1));
|
|
if (LLVMGetNumIndices(Src) != 1)
|
|
report_fatal_error("Expected only one indice");
|
|
auto I = LLVMGetIndices(Src)[0];
|
|
Dst = LLVMBuildInsertValue(Builder, Agg, V, I, Name);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (Dst == nullptr) {
|
|
fprintf(stderr, "%d is not a supported opcode\n", Op);
|
|
exit(-1);
|
|
}
|
|
|
|
check_value_kind(Dst, LLVMInstructionValueKind);
|
|
return VMap[Src] = Dst;
|
|
}
|
|
|
|
LLVMBasicBlockRef DeclareBB(LLVMBasicBlockRef Src) {
|
|
// Check if this is something we already computed.
|
|
{
|
|
auto i = BBMap.find(Src);
|
|
if (i != BBMap.end()) {
|
|
return i->second;
|
|
}
|
|
}
|
|
|
|
LLVMValueRef V = LLVMBasicBlockAsValue(Src);
|
|
if (!LLVMValueIsBasicBlock(V) || LLVMValueAsBasicBlock(V) != Src)
|
|
report_fatal_error("Basic block is not a basic block");
|
|
|
|
const char *Name = LLVMGetBasicBlockName(Src);
|
|
const char *VName = LLVMGetValueName(V);
|
|
if (Name != VName)
|
|
report_fatal_error("Basic block name mismatch");
|
|
|
|
LLVMBasicBlockRef BB = LLVMAppendBasicBlock(Fun, Name);
|
|
return BBMap[Src] = BB;
|
|
}
|
|
|
|
LLVMBasicBlockRef CloneBB(LLVMBasicBlockRef Src) {
|
|
LLVMBasicBlockRef BB = DeclareBB(Src);
|
|
|
|
// Make sure ordering is correct.
|
|
LLVMBasicBlockRef Prev = LLVMGetPreviousBasicBlock(Src);
|
|
if (Prev)
|
|
LLVMMoveBasicBlockAfter(BB, DeclareBB(Prev));
|
|
|
|
LLVMValueRef First = LLVMGetFirstInstruction(Src);
|
|
LLVMValueRef Last = LLVMGetLastInstruction(Src);
|
|
|
|
if (First == nullptr) {
|
|
if (Last != nullptr)
|
|
report_fatal_error("Has no first instruction, but last one");
|
|
return BB;
|
|
}
|
|
|
|
auto Ctx = LLVMGetModuleContext(M);
|
|
LLVMBuilderRef Builder = LLVMCreateBuilderInContext(Ctx);
|
|
LLVMPositionBuilderAtEnd(Builder, BB);
|
|
|
|
LLVMValueRef Cur = First;
|
|
LLVMValueRef Next = nullptr;
|
|
while(true) {
|
|
CloneInstruction(Cur, Builder);
|
|
Next = LLVMGetNextInstruction(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != Last)
|
|
report_fatal_error("Final instruction does not match Last");
|
|
break;
|
|
}
|
|
|
|
LLVMValueRef Prev = LLVMGetPreviousInstruction(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous instruction is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
|
|
LLVMDisposeBuilder(Builder);
|
|
return BB;
|
|
}
|
|
|
|
void CloneBBs(LLVMValueRef Src) {
|
|
unsigned Count = LLVMCountBasicBlocks(Src);
|
|
if (Count == 0)
|
|
return;
|
|
|
|
LLVMBasicBlockRef First = LLVMGetFirstBasicBlock(Src);
|
|
LLVMBasicBlockRef Last = LLVMGetLastBasicBlock(Src);
|
|
|
|
LLVMBasicBlockRef Cur = First;
|
|
LLVMBasicBlockRef Next = nullptr;
|
|
while(true) {
|
|
CloneBB(Cur);
|
|
Count--;
|
|
Next = LLVMGetNextBasicBlock(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != Last)
|
|
report_fatal_error("Final basic block does not match Last");
|
|
break;
|
|
}
|
|
|
|
LLVMBasicBlockRef Prev = LLVMGetPreviousBasicBlock(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous basic bloc is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
|
|
if (Count != 0)
|
|
report_fatal_error("Basic block count does not match iterration");
|
|
}
|
|
};
|
|
|
|
static void declare_symbols(LLVMModuleRef Src, LLVMModuleRef M) {
|
|
LLVMValueRef Begin = LLVMGetFirstGlobal(Src);
|
|
LLVMValueRef End = LLVMGetLastGlobal(Src);
|
|
|
|
LLVMValueRef Cur = Begin;
|
|
LLVMValueRef Next = nullptr;
|
|
if (!Begin) {
|
|
if (End != nullptr)
|
|
report_fatal_error("Range has an end but no beginning");
|
|
goto FunDecl;
|
|
}
|
|
|
|
while (true) {
|
|
const char *Name = LLVMGetValueName(Cur);
|
|
if (LLVMGetNamedGlobal(M, Name))
|
|
report_fatal_error("GlobalVariable already cloned");
|
|
LLVMAddGlobal(M, LLVMGetElementType(TypeCloner(M).Clone(Cur)), Name);
|
|
|
|
Next = LLVMGetNextGlobal(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != End)
|
|
report_fatal_error("");
|
|
break;
|
|
}
|
|
|
|
LLVMValueRef Prev = LLVMGetPreviousGlobal(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous global is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
|
|
FunDecl:
|
|
Begin = LLVMGetFirstFunction(Src);
|
|
End = LLVMGetLastFunction(Src);
|
|
if (!Begin) {
|
|
if (End != nullptr)
|
|
report_fatal_error("Range has an end but no beginning");
|
|
return;
|
|
}
|
|
|
|
auto Ctx = LLVMGetModuleContext(M);
|
|
|
|
Cur = Begin;
|
|
Next = nullptr;
|
|
while (true) {
|
|
const char *Name = LLVMGetValueName(Cur);
|
|
if (LLVMGetNamedFunction(M, Name))
|
|
report_fatal_error("Function already cloned");
|
|
auto Ty = LLVMGetElementType(TypeCloner(M).Clone(Cur));
|
|
auto F = LLVMAddFunction(M, Name, Ty);
|
|
|
|
// Copy attributes
|
|
for (int i = LLVMAttributeFunctionIndex, c = LLVMCountParams(F);
|
|
i <= c; ++i) {
|
|
for (unsigned k = 0, e = LLVMGetLastEnumAttributeKind(); k < e; ++k) {
|
|
if (auto SrcA = LLVMGetEnumAttributeAtIndex(Cur, i, k)) {
|
|
auto Val = LLVMGetEnumAttributeValue(SrcA);
|
|
auto DstA = LLVMCreateEnumAttribute(Ctx, k, Val);
|
|
LLVMAddAttributeAtIndex(F, i, DstA);
|
|
}
|
|
}
|
|
}
|
|
|
|
Next = LLVMGetNextFunction(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != End)
|
|
report_fatal_error("Last function does not match End");
|
|
break;
|
|
}
|
|
|
|
LLVMValueRef Prev = LLVMGetPreviousFunction(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous function is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
}
|
|
|
|
static void clone_symbols(LLVMModuleRef Src, LLVMModuleRef M) {
|
|
LLVMValueRef Begin = LLVMGetFirstGlobal(Src);
|
|
LLVMValueRef End = LLVMGetLastGlobal(Src);
|
|
|
|
LLVMValueRef Cur = Begin;
|
|
LLVMValueRef Next = nullptr;
|
|
if (!Begin) {
|
|
if (End != nullptr)
|
|
report_fatal_error("Range has an end but no beginning");
|
|
goto FunClone;
|
|
}
|
|
|
|
while (true) {
|
|
const char *Name = LLVMGetValueName(Cur);
|
|
LLVMValueRef G = LLVMGetNamedGlobal(M, Name);
|
|
if (!G)
|
|
report_fatal_error("GlobalVariable must have been declared already");
|
|
|
|
if (auto I = LLVMGetInitializer(Cur))
|
|
LLVMSetInitializer(G, clone_constant(I, M));
|
|
|
|
LLVMSetGlobalConstant(G, LLVMIsGlobalConstant(Cur));
|
|
LLVMSetThreadLocal(G, LLVMIsThreadLocal(Cur));
|
|
LLVMSetExternallyInitialized(G, LLVMIsExternallyInitialized(Cur));
|
|
LLVMSetLinkage(G, LLVMGetLinkage(Cur));
|
|
LLVMSetSection(G, LLVMGetSection(Cur));
|
|
LLVMSetVisibility(G, LLVMGetVisibility(Cur));
|
|
LLVMSetUnnamedAddress(G, LLVMGetUnnamedAddress(Cur));
|
|
LLVMSetAlignment(G, LLVMGetAlignment(Cur));
|
|
|
|
Next = LLVMGetNextGlobal(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != End)
|
|
report_fatal_error("");
|
|
break;
|
|
}
|
|
|
|
LLVMValueRef Prev = LLVMGetPreviousGlobal(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous global is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
|
|
FunClone:
|
|
Begin = LLVMGetFirstFunction(Src);
|
|
End = LLVMGetLastFunction(Src);
|
|
if (!Begin) {
|
|
if (End != nullptr)
|
|
report_fatal_error("Range has an end but no beginning");
|
|
return;
|
|
}
|
|
|
|
Cur = Begin;
|
|
Next = nullptr;
|
|
while (true) {
|
|
const char *Name = LLVMGetValueName(Cur);
|
|
LLVMValueRef Fun = LLVMGetNamedFunction(M, Name);
|
|
if (!Fun)
|
|
report_fatal_error("Function must have been declared already");
|
|
|
|
if (LLVMHasPersonalityFn(Cur)) {
|
|
const char *FName = LLVMGetValueName(LLVMGetPersonalityFn(Cur));
|
|
LLVMValueRef P = LLVMGetNamedFunction(M, FName);
|
|
if (!P)
|
|
report_fatal_error("Could not find personality function");
|
|
LLVMSetPersonalityFn(Fun, P);
|
|
}
|
|
|
|
FunCloner FC(Cur, Fun);
|
|
FC.CloneBBs(Cur);
|
|
|
|
Next = LLVMGetNextFunction(Cur);
|
|
if (Next == nullptr) {
|
|
if (Cur != End)
|
|
report_fatal_error("Last function does not match End");
|
|
break;
|
|
}
|
|
|
|
LLVMValueRef Prev = LLVMGetPreviousFunction(Next);
|
|
if (Prev != Cur)
|
|
report_fatal_error("Next.Previous function is not Current");
|
|
|
|
Cur = Next;
|
|
}
|
|
}
|
|
|
|
int llvm_echo(void) {
|
|
LLVMEnablePrettyStackTrace();
|
|
|
|
LLVMModuleRef Src = llvm_load_module(false, true);
|
|
size_t SourceFileLen;
|
|
const char *SourceFileName = LLVMGetSourceFileName(Src, &SourceFileLen);
|
|
size_t ModuleIdentLen;
|
|
const char *ModuleName = LLVMGetModuleIdentifier(Src, &ModuleIdentLen);
|
|
LLVMContextRef Ctx = LLVMContextCreate();
|
|
LLVMModuleRef M = LLVMModuleCreateWithNameInContext(ModuleName, Ctx);
|
|
|
|
LLVMSetSourceFileName(M, SourceFileName, SourceFileLen);
|
|
LLVMSetModuleIdentifier(M, ModuleName, ModuleIdentLen);
|
|
|
|
LLVMSetTarget(M, LLVMGetTarget(Src));
|
|
LLVMSetModuleDataLayout(M, LLVMGetModuleDataLayout(Src));
|
|
if (strcmp(LLVMGetDataLayoutStr(M), LLVMGetDataLayoutStr(Src)))
|
|
report_fatal_error("Inconsistent DataLayout string representation");
|
|
|
|
size_t ModuleInlineAsmLen;
|
|
const char *ModuleAsm = LLVMGetModuleInlineAsm(Src, &ModuleInlineAsmLen);
|
|
LLVMSetModuleInlineAsm2(M, ModuleAsm, ModuleInlineAsmLen);
|
|
|
|
declare_symbols(Src, M);
|
|
clone_symbols(Src, M);
|
|
char *Str = LLVMPrintModuleToString(M);
|
|
fputs(Str, stdout);
|
|
|
|
LLVMDisposeMessage(Str);
|
|
LLVMDisposeModule(Src);
|
|
LLVMDisposeModule(M);
|
|
LLVMContextDispose(Ctx);
|
|
|
|
return 0;
|
|
}
|