[lld] Use llvm::unique (NFC) (#136453)

Author: kazutakahirata

lld/COFF/MapFile.cpp

@@ -75,10 +75,9 @@ static void sortUniqueSymbols(std::vector<Defined *> &syms,
 
   // Remove duplicate symbol pointers
   parallelSort(v, std::less<SortEntry>());
-  auto end = std::unique(v.begin(), v.end(),
-                         [](const SortEntry &a, const SortEntry &b) {
-                           return a.first == b.first;
-                         });
+  auto end = llvm::unique(v, [](const SortEntry &a, const SortEntry &b) {
+    return a.first == b.first;
+  });
   v.erase(end, v.end());
 
   // Sort by RVA then original order

lld/ELF/AArch64ErrataFix.cpp

@@ -461,12 +461,12 @@ void AArch64Err843419Patcher::init() {
     llvm::stable_sort(mapSyms, [](const Defined *a, const Defined *b) {
       return a->value < b->value;
     });
-    mapSyms.erase(
-        std::unique(mapSyms.begin(), mapSyms.end(),
-                    [=](const Defined *a, const Defined *b) {
-                      return isCodeMapSymbol(a) == isCodeMapSymbol(b);
-                    }),
-        mapSyms.end());
+    mapSyms.erase(llvm::unique(mapSyms,
+                               [=](const Defined *a, const Defined *b) {
+                                 return isCodeMapSymbol(a) ==
+                                        isCodeMapSymbol(b);
+                               }),
+                  mapSyms.end());
     // Always start with a Code Mapping Symbol.
     if (!mapSyms.empty() && !isCodeMapSymbol(mapSyms.front()))
       mapSyms.erase(mapSyms.begin());

lld/ELF/ARMErrataFix.cpp

@@ -354,11 +354,11 @@ void ARMErr657417Patcher::init() {
     llvm::stable_sort(mapSyms, [](const Defined *a, const Defined *b) {
       return a->value < b->value;
     });
-    mapSyms.erase(std::unique(mapSyms.begin(), mapSyms.end(),
-                              [=](const Defined *a, const Defined *b) {
-                                return (isThumbMapSymbol(a) ==
-                                        isThumbMapSymbol(b));
-                              }),
+    mapSyms.erase(llvm::unique(mapSyms,
+                               [=](const Defined *a, const Defined *b) {
+                                 return (isThumbMapSymbol(a) ==
+                                         isThumbMapSymbol(b));
+                               }),
                   mapSyms.end());
     // Always start with a Thumb Mapping Symbol
     if (!mapSyms.empty() && !isThumbMapSymbol(mapSyms.front()))

lld/ELF/BPSectionOrderer.cpp

@@ -53,7 +53,7 @@ struct BPOrdererELF : lld::BPOrderer<BPOrdererELF> {
       hashes.push_back(byte);
 
     llvm::sort(hashes);
-    hashes.erase(std::unique(hashes.begin(), hashes.end()), hashes.end());
+    hashes.erase(llvm::unique(hashes), hashes.end());
   }
 
   static StringRef getSymName(const Defined &sym) { return sym.getName(); }

lld/ELF/SyntheticSections.cpp

@@ -590,7 +590,7 @@ SmallVector<EhFrameSection::FdeData, 0> EhFrameSection::getFdeData() const {
   auto eq = [](const FdeData &a, const FdeData &b) {
     return a.pcRel == b.pcRel;
   };
-  ret.erase(std::unique(ret.begin(), ret.end(), eq), ret.end());
+  ret.erase(llvm::unique(ret, eq), ret.end());
 
   return ret;
 }

lld/MachO/BPSectionOrderer.cpp

@@ -73,7 +73,7 @@ struct BPOrdererMachO : lld::BPOrderer<BPOrdererMachO> {
     }
 
     llvm::sort(hashes);
-    hashes.erase(std::unique(hashes.begin(), hashes.end()), hashes.end());
+    hashes.erase(llvm::unique(hashes), hashes.end());
   }
 
   static llvm::StringRef getSymName(const Defined &sym) {

lld/include/lld/Common/BPSectionOrdererBase.inc

@@ -260,7 +260,7 @@ auto BPOrderer<D>::computeOrder(
       auto &uns = startupSectionIdxUNs[sectionIdx];
       uns.append(compressionUns);
       llvm::sort(uns);
-      uns.erase(std::unique(uns.begin(), uns.end()), uns.end());
+      uns.erase(llvm::unique(uns), uns.end());
     }
   }