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      1 //===- Comdat.cpp - Implement Metadata classes ----------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file implements the Comdat class (including the C bindings).
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "llvm-c/Comdat.h"
     15 #include "llvm/ADT/StringMap.h"
     16 #include "llvm/ADT/StringRef.h"
     17 #include "llvm/IR/Comdat.h"
     18 #include "llvm/IR/GlobalObject.h"
     19 #include "llvm/IR/Module.h"
     20 
     21 using namespace llvm;
     22 
     23 Comdat::Comdat(Comdat &&C) : Name(C.Name), SK(C.SK) {}
     24 
     25 Comdat::Comdat() = default;
     26 
     27 StringRef Comdat::getName() const { return Name->first(); }
     28 
     29 LLVMComdatRef LLVMGetOrInsertComdat(LLVMModuleRef M, const char *Name) {
     30   return wrap(unwrap(M)->getOrInsertComdat(Name));
     31 }
     32 
     33 LLVMComdatRef LLVMGetComdat(LLVMValueRef V) {
     34   GlobalObject *G = unwrap<GlobalObject>(V);
     35   return wrap(G->getComdat());
     36 }
     37 
     38 void LLVMSetComdat(LLVMValueRef V, LLVMComdatRef C) {
     39   GlobalObject *G = unwrap<GlobalObject>(V);
     40   G->setComdat(unwrap(C));
     41 }
     42 
     43 LLVMComdatSelectionKind LLVMGetComdatSelectionKind(LLVMComdatRef C) {
     44   switch (unwrap(C)->getSelectionKind()) {
     45   case Comdat::Any:
     46     return LLVMAnyComdatSelectionKind;
     47   case Comdat::ExactMatch:
     48     return LLVMExactMatchComdatSelectionKind;
     49   case Comdat::Largest:
     50     return LLVMLargestComdatSelectionKind;
     51   case Comdat::NoDuplicates:
     52     return LLVMNoDuplicatesComdatSelectionKind;
     53   case Comdat::SameSize:
     54     return LLVMSameSizeComdatSelectionKind;
     55   }
     56   llvm_unreachable("Invalid Comdat SelectionKind!");
     57 }
     58 
     59 void LLVMSetComdatSelectionKind(LLVMComdatRef C, LLVMComdatSelectionKind kind) {
     60   Comdat *Cd = unwrap(C);
     61   switch (kind) {
     62   case LLVMAnyComdatSelectionKind:
     63     Cd->setSelectionKind(Comdat::Any);
     64     break;
     65   case LLVMExactMatchComdatSelectionKind:
     66     Cd->setSelectionKind(Comdat::ExactMatch);
     67     break;
     68   case LLVMLargestComdatSelectionKind:
     69     Cd->setSelectionKind(Comdat::Largest);
     70     break;
     71   case LLVMNoDuplicatesComdatSelectionKind:
     72     Cd->setSelectionKind(Comdat::NoDuplicates);
     73     break;
     74   case LLVMSameSizeComdatSelectionKind:
     75     Cd->setSelectionKind(Comdat::SameSize);
     76     break;
     77   }
     78 }
     79