Index: ELF/LinkerScript.h
===================================================================
--- ELF/LinkerScript.h
+++ ELF/LinkerScript.h
@@ -72,6 +72,7 @@
       : BaseCommand(OutputSectionKind), Name(Name) {}
   static bool classof(const BaseCommand *C);
   StringRef Name;
+  Expr AlignExpr;
   std::vector<std::unique_ptr<BaseCommand>> Commands;
   std::vector<StringRef> Phdrs;
   std::vector<uint8_t> Filler;
Index: ELF/LinkerScript.cpp
===================================================================
--- ELF/LinkerScript.cpp
+++ ELF/LinkerScript.cpp
@@ -84,12 +84,14 @@
   // Add input section to output section. If there is no output section yet,
   // then create it and add to output section list.
   auto AddInputSec = [&](InputSectionBase<ELFT> *C, StringRef Name,
-                         ConstraintKind Constraint) {
+                         ConstraintKind Constraint, uintX_t Align) {
     OutputSectionBase<ELFT> *Sec;
     bool IsNew;
     std::tie(Sec, IsNew) = Factory.create(C, Name);
-    if (IsNew)
+    if (IsNew) {
       Result.push_back(Sec);
+      Sec->updateAlignment(Align);
+    }
     if ((!(C->getSectionHdr()->sh_flags & SHF_WRITE)) &&
         Constraint == ReadWrite) {
       Removed.insert(Sec);
@@ -115,6 +117,7 @@
       if (!InCmd)
         continue;
 
+      uint64_t Align = OutCmd->AlignExpr ? OutCmd->AlignExpr(Dot) : 0;
       for (ObjectFile &F : Symtab<ELFT>::X->getObjectFiles()) {
         for (InputSectionBase<ELFT> *S : F->getSections()) {
           if (isDiscarded(S) || S->OutSec)
@@ -124,7 +127,7 @@
             if (OutCmd->Name == "/DISCARD/")
               S->Live = false;
             else
-              AddInputSec(S, OutCmd->Name, OutCmd->Constraint);
+              AddInputSec(S, OutCmd->Name, OutCmd->Constraint, Align);
           }
         }
       }
@@ -136,7 +139,7 @@
     for (InputSectionBase<ELFT> *S : F->getSections()) {
       if (!isDiscarded(S)) {
         if (!S->OutSec)
-          AddInputSec(S, getOutputSectionName(S), NoConstraint);
+          AddInputSec(S, getOutputSectionName(S), NoConstraint, 0);
       } else
         reportDiscarded(S, F);
     }
@@ -420,6 +423,7 @@
   std::vector<StringRef> readOutputSectionPhdrs();
   unsigned readPhdrType();
   void readProvide(bool Hidden);
+  void readAlign(OutputSectionCommand *Cmd);
 
   Expr readExpr();
   Expr readExpr1(Expr Lhs, int MinPrec);
@@ -645,11 +649,21 @@
       .Default(-1);
 }
 
+void ScriptParser::readAlign(OutputSectionCommand *Cmd) {
+  expect("ALIGN");
+  expect("(");
+  Cmd->AlignExpr = readExpr();
+  expect(")");
+}
+
 void ScriptParser::readOutputSectionDescription(StringRef OutSec) {
   OutputSectionCommand *Cmd = new OutputSectionCommand(OutSec);
   Opt.Commands.emplace_back(Cmd);
   expect(":");
 
+  if (peek() == "ALIGN")
+    readAlign(Cmd);
+
   // Parse constraints.
   if (skip("ONLY_IF_RO"))
     Cmd->Constraint = ReadOnly;
Index: test/ELF/linkerscript/linkerscript-align.s
===================================================================
--- test/ELF/linkerscript/linkerscript-align.s
+++ test/ELF/linkerscript/linkerscript-align.s
@@ -1,6 +1,7 @@
 # REQUIRES: x86
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 
+## Check that ALIGN command workable using location counter
 # RUN: echo "SECTIONS { \
 # RUN:  . = 0x10000; \
 # RUN:  .aaa : \
@@ -27,6 +28,25 @@
 # CHECK-NEXT:   2 .bbb          00000008 0000000000011000 DATA
 # CHECK-NEXT:   3 .ccc          00000008 0000000000014000 DATA
 
+## Check output sections ALIGN modificator
+# RUN: echo "SECTIONS { \
+# RUN:  . = 0x10000; \
+# RUN:  .aaa : \
+# RUN:  { \
+# RUN:   *(.aaa) \
+# RUN:  } \
+# RUN:  .bbb : ALIGN(4096) \
+# RUN:  { \
+# RUN:   *(.bbb) \
+# RUN:  } \
+# RUN:  .ccc : ALIGN(4096 * 4) \
+# RUN:  { \
+# RUN:   *(.ccc) \
+# RUN:  } \
+# RUN: }" > %t2.script
+# RUN: ld.lld -o %t2 --script %t2.script %t
+# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
+
 .global _start
 _start:
  nop