Index: lld/trunk/ELF/LinkerScript.cpp
===================================================================
--- lld/trunk/ELF/LinkerScript.cpp
+++ lld/trunk/ELF/LinkerScript.cpp
@@ -667,6 +667,15 @@
     Ctx->LMAOffset = [=] { return Sec->LMAExpr().getValue() - D; };
   }
 
+  if (!Sec->LMARegionName.empty()) {
+    if (MemoryRegion *MR = MemoryRegions.lookup(Sec->LMARegionName)) {
+      uint64_t Offset = MR->Origin - Dot;
+      Ctx->LMAOffset = [=] { return Offset; };
+    } else {
+      error("memory region '" + Sec->LMARegionName + "' not declared");
+    }
+  }
+
   switchTo(Sec);
 
   // The Size previously denoted how many InputSections had been added to this
Index: lld/trunk/ELF/OutputSections.h
===================================================================
--- lld/trunk/ELF/OutputSections.h
+++ lld/trunk/ELF/OutputSections.h
@@ -99,6 +99,7 @@
   ConstraintKind Constraint = ConstraintKind::NoConstraint;
   std::string Location;
   std::string MemoryRegionName;
+  std::string LMARegionName;
   bool Noload = false;
 
   template <class ELFT> void finalize();
Index: lld/trunk/ELF/ScriptParser.cpp
===================================================================
--- lld/trunk/ELF/ScriptParser.cpp
+++ lld/trunk/ELF/ScriptParser.cpp
@@ -709,6 +709,14 @@
   if (consume(">"))
     Cmd->MemoryRegionName = next();
 
+  if (consume("AT")) {
+    expect(">");
+    Cmd->LMARegionName = next();
+  }
+
+  if (Cmd->LMAExpr && !Cmd->LMARegionName.empty())
+    error("section can't have both LMA and a load region");
+
   Cmd->Phdrs = readOutputSectionPhdrs();
 
   if (consume("="))
Index: lld/trunk/test/ELF/linkerscript/at2.s
===================================================================
--- lld/trunk/test/ELF/linkerscript/at2.s
+++ lld/trunk/test/ELF/linkerscript/at2.s
@@ -0,0 +1,81 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
+# RUN: echo "MEMORY {                                   \
+# RUN:   AX (ax)   : ORIGIN = 0x2000, LENGTH = 0x100   \
+# RUN:   AW (aw)   : ORIGIN = 0x3000, LENGTH = 0x100   \
+# RUN:   FLASH (ax) : ORIGIN = 0x6000, LENGTH = 0x100   \
+# RUN:   RAM (aw)   : ORIGIN = 0x7000, LENGTH = 0x100 } \
+# RUN: SECTIONS {                                       \
+# RUN:  .foo1 : { *(.foo1) } > AX AT>FLASH             \
+# RUN:  .foo2 : { *(.foo2) } > AX                      \
+# RUN:  .bar1 : { *(.bar1) } > AW AT> RAM              \
+# RUN:  .bar2 : { *(.bar2) } > AW AT > RAM             \
+# RUN:  .bar3 : { *(.bar3) } > AW AT >RAM              \
+# RUN: }" > %t.script
+# RUN: ld.lld %t --script %t.script -o %t2
+# RUN: llvm-readobj -program-headers %t2 | FileCheck %s
+# RUN: llvm-objdump -section-headers %t2 | FileCheck %s --check-prefix=SECTIONS
+
+# CHECK:      ProgramHeaders [
+# CHECK-NEXT:   ProgramHeader {
+# CHECK-NEXT:     Type: PT_LOAD
+# CHECK-NEXT:     Offset: 0x1000
+# CHECK-NEXT:     VirtualAddress: 0x2000
+# CHECK-NEXT:     PhysicalAddress: 0x6000
+# CHECK-NEXT:     FileSize: 16
+# CHECK-NEXT:     MemSize: 16
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:       PF_R
+# CHECK-NEXT:       PF_X
+# CHECK-NEXT:     ]
+# CHECK-NEXT:     Alignment:
+# CHECK-NEXT:   }
+# CHECK-NEXT:   ProgramHeader {
+# CHECK-NEXT:     Type: PT_LOAD
+# CHECK-NEXT:     Offset: 0x2000
+# CHECK-NEXT:     VirtualAddress: 0x3000
+# CHECK-NEXT:     PhysicalAddress: 0x7000
+# CHECK-NEXT:     FileSize: 24
+# CHECK-NEXT:     MemSize: 24
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:       PF_R
+# CHECK-NEXT:       PF_W
+# CHECK-NEXT:     ]
+# CHECK-NEXT:     Alignment: 4096
+# CHECK-NEXT:   }
+
+# SECTIONS:      Sections:
+# SECTIONS-NEXT: Idx Name          Size      Address
+# SECTIONS-NEXT:   0               00000000 0000000000000000
+# SECTIONS-NEXT:   1 .foo1         00000008 0000000000002000
+# SECTIONS-NEXT:   2 .foo2         00000008 0000000000002008
+# SECTIONS-NEXT:   3 .text         00000000 0000000000002010
+# SECTIONS-NEXT:   4 .bar1         00000008 0000000000003000
+# SECTIONS-NEXT:   5 .bar2         00000008 0000000000003008
+# SECTIONS-NEXT:   6 .bar3         00000008 0000000000003010
+  
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
+# RUN: echo "MEMORY {                                            \
+# RUN:   FLASH (ax) : ORIGIN = 0x2000, LENGTH = 0x100            \
+# RUN:   RAM (aw)   : ORIGIN = 0x5000, LENGTH = 0x100 }          \
+# RUN: SECTIONS {                                                \
+# RUN:  .foo1 : AT(0x500) { *(.foo1) } > FLASH AT>FLASH          \
+# RUN: }" > %t2.script
+# RUN: not ld.lld %t --script %t2.script -o %t2 2>&1 | \
+# RUN:   FileCheck %s --check-prefix=ERR
+# ERR: error: section can't have both LMA and a load region
+
+.section .foo1, "ax"
+.quad 0
+
+.section .foo2, "ax"
+.quad 0
+
+.section .bar1, "aw"
+.quad 0
+
+.section .bar2, "aw"
+.quad 0
+
+.section .bar3, "aw"
+.quad 0