[Alignment][NFC] Use Align within StringTableBuilder

Author: gchatelet

llvm/include/llvm/MC/StringTableBuilder.h

@@ -12,6 +12,7 @@
 #include "llvm/ADT/CachedHashString.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Alignment.h"
 #include <cstddef>
 #include <cstdint>
 
@@ -38,7 +39,7 @@ class StringTableBuilder {
   DenseMap<CachedHashStringRef, size_t> StringIndexMap;
   size_t Size = 0;
   Kind K;
-  unsigned Alignment;
+  Align Alignment;
   bool Finalized = false;
 
   void finalizeStringTable(bool Optimize);

llvm/lib/MC/StringTableBuilder.cpp

@@ -151,7 +151,7 @@ void StringTableBuilder::finalizeStringTable(bool Optimize) {
       StringRef S = P->first.val();
       if (Previous.endswith(S)) {
         size_t Pos = Size - S.size() - (K != RAW);
-        if (!(Pos & (Alignment - 1))) {
+        if (isAligned(Alignment, Pos)) {
           P->second = Pos;
           continue;
         }