lib/IR/Comdat.cpp

   1 //===- Comdat.cpp - Implement Metadata classes ----------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the Comdat class (including the C bindings).
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm-c/Comdat.h"
  14 #include "llvm/ADT/StringMap.h"
  15 #include "llvm/ADT/StringRef.h"
  16 #include "llvm/IR/Comdat.h"
  17 #include "llvm/IR/GlobalObject.h"
  18 #include "llvm/IR/Module.h"
  19
  20 using namespace llvm;
  21
  22 Comdat::Comdat(Comdat &&C) : Name(C.Name), SK(C.SK) {}
  23
  24 Comdat::Comdat() = default;
  25
  26 StringRef Comdat::getName() const { return Name->first(); }
  27
  28 LLVMComdatRef LLVMGetOrInsertComdat(LLVMModuleRef M, const char *Name) {
  29   return wrap(unwrap(M)->getOrInsertComdat(Name));
  30 }
  31
  32 LLVMComdatRef LLVMGetComdat(LLVMValueRef V) {
  33   GlobalObject *G = unwrap<GlobalObject>(V);
  34   return wrap(G->getComdat());
  35 }
  36
  37 void LLVMSetComdat(LLVMValueRef V, LLVMComdatRef C) {
  38   GlobalObject *G = unwrap<GlobalObject>(V);
  39   G->setComdat(unwrap(C));
  40 }
  41
  42 LLVMComdatSelectionKind LLVMGetComdatSelectionKind(LLVMComdatRef C) {
  43   switch (unwrap(C)->getSelectionKind()) {
  44   case Comdat::Any:
  45     return LLVMAnyComdatSelectionKind;
  46   case Comdat::ExactMatch:
  47     return LLVMExactMatchComdatSelectionKind;
  48   case Comdat::Largest:
  49     return LLVMLargestComdatSelectionKind;
  50   case Comdat::NoDuplicates:
  51     return LLVMNoDuplicatesComdatSelectionKind;
  52   case Comdat::SameSize:
  53     return LLVMSameSizeComdatSelectionKind;
  54   }
  55   llvm_unreachable("Invalid Comdat SelectionKind!");
  56 }
  57
  58 void LLVMSetComdatSelectionKind(LLVMComdatRef C, LLVMComdatSelectionKind kind) {
  59   Comdat *Cd = unwrap(C);
  60   switch (kind) {
  61   case LLVMAnyComdatSelectionKind:
  62     Cd->setSelectionKind(Comdat::Any);
  63     break;
  64   case LLVMExactMatchComdatSelectionKind:
  65     Cd->setSelectionKind(Comdat::ExactMatch);
  66     break;
  67   case LLVMLargestComdatSelectionKind:
  68     Cd->setSelectionKind(Comdat::Largest);
  69     break;
  70   case LLVMNoDuplicatesComdatSelectionKind:
  71     Cd->setSelectionKind(Comdat::NoDuplicates);
  72     break;
  73   case LLVMSameSizeComdatSelectionKind:
  74     Cd->setSelectionKind(Comdat::SameSize);
  75     break;
  76   }
  77 }