diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -19142,9 +19142,8 @@
 }
 
 static SDValue LowerToTLSLocalDynamicModel(GlobalAddressSDNode *GA,
-                                           SelectionDAG &DAG,
-                                           const EVT PtrVT,
-                                           bool is64Bit) {
+                                           SelectionDAG &DAG, const EVT PtrVT,
+                                           bool Is64Bit, bool Is64BitLP64) {
   SDLoc dl(GA);
 
   // Get the start address of the TLS block for this module.
@@ -19153,8 +19152,9 @@
   MFI->incNumLocalDynamicTLSAccesses();
 
   SDValue Base;
-  if (is64Bit) {
-    Base = GetTLSADDR(DAG, DAG.getEntryNode(), GA, nullptr, PtrVT, X86::RAX,
+  if (Is64Bit) {
+    unsigned ReturnReg = Is64BitLP64 ? X86::RAX : X86::EAX;
+    Base = GetTLSADDR(DAG, DAG.getEntryNode(), GA, nullptr, PtrVT, ReturnReg,
                       X86II::MO_TLSLD, /*LocalDynamic=*/true);
   } else {
     SDValue InFlag;
@@ -19258,8 +19258,8 @@
         }
         return LowerToTLSGeneralDynamicModel32(GA, DAG, PtrVT);
       case TLSModel::LocalDynamic:
-        return LowerToTLSLocalDynamicModel(GA, DAG, PtrVT,
-                                           Subtarget.is64Bit());
+        return LowerToTLSLocalDynamicModel(GA, DAG, PtrVT, Subtarget.is64Bit(),
+                                           Subtarget.isTarget64BitLP64());
       case TLSModel::InitialExec:
       case TLSModel::LocalExec:
         return LowerToTLSExecModel(GA, DAG, PtrVT, model, Subtarget.is64Bit(),
diff --git a/llvm/test/CodeGen/X86/pic.ll b/llvm/test/CodeGen/X86/pic.ll
--- a/llvm/test/CodeGen/X86/pic.ll
+++ b/llvm/test/CodeGen/X86/pic.ll
@@ -254,15 +254,24 @@
 declare void @foo5(...)
 
 ;; Check TLS references
-@tlsptr = external thread_local global i32*
-@tlsdst = external thread_local global i32
-@tlssrc = external thread_local global i32
+@tlsptrgd = thread_local global i32* null
+@tlsdstgd = thread_local global i32 0
+@tlssrcgd = thread_local global i32 0
+@tlsptrld = thread_local(localdynamic) global i32* null
+@tlsdstld = thread_local(localdynamic) global i32 0
+@tlssrcld = thread_local(localdynamic) global i32 0
+@tlsptrie = thread_local(initialexec) global i32* null
+@tlsdstie = thread_local(initialexec) global i32 0
+@tlssrcie = thread_local(initialexec) global i32 0
+@tlsptrle = thread_local(localexec) global i32* null
+@tlsdstle = thread_local(localexec) global i32 0
+@tlssrcle = thread_local(localexec) global i32 0
 
 define void @test8() nounwind {
 entry:
-    store i32* @tlsdst, i32** @tlsptr
-    %tmp.s = load i32, i32* @tlssrc
-    store i32 %tmp.s, i32* @tlsdst
+    store i32* @tlsdstgd, i32** @tlsptrgd
+    %tmp.s = load i32, i32* @tlssrcgd
+    store i32 %tmp.s, i32* @tlsdstgd
     ret void
 
 ; CHECK-LABEL:	test8:
@@ -270,18 +279,95 @@
 ; CHECK-I686-NEXT:	.L8$pb:
 ; CHECK-I686-NEXT:	popl
 ; CHECK-I686:	addl	$_GLOBAL_OFFSET_TABLE_+(.L{{.*}}-.L8$pb), %ebx
-; CHECK-I686-DAG:	leal	tlsdst@TLSGD(,%ebx), %eax
+; CHECK-I686-DAG:	leal	tlsdstgd@TLSGD(,%ebx), %eax
 ; CHECK-I686-DAG:	calll	___tls_get_addr@PLT
-; CHECK-I686-DAG:	leal	tlsptr@TLSGD(,%ebx), %eax
+; CHECK-I686-DAG:	leal	tlsptrgd@TLSGD(,%ebx), %eax
 ; CHECK-I686-DAG:	calll	___tls_get_addr@PLT
-; CHECK-I686-DAG:	leal	tlssrc@TLSGD(,%ebx), %eax
+; CHECK-I686-DAG:	leal	tlssrcgd@TLSGD(,%ebx), %eax
 ; CHECK-I686-DAG:	calll	___tls_get_addr@PLT
-; CHECK-X32-DAG:	leaq	tlsdst@TLSGD(%rip), %rdi
+; CHECK-X32-DAG:	leaq	tlsdstgd@TLSGD(%rip), %rdi
 ; CHECK-X32-DAG:	callq	__tls_get_addr@PLT
-; CHECK-X32-DAG:	leaq	tlsptr@TLSGD(%rip), %rdi
+; CHECK-X32-DAG:	leaq	tlsptrgd@TLSGD(%rip), %rdi
 ; CHECK-X32-DAG:	callq	__tls_get_addr@PLT
-; CHECK-X32-DAG:	leaq	tlssrc@TLSGD(%rip), %rdi
+; CHECK-X32-DAG:	leaq	tlssrcgd@TLSGD(%rip), %rdi
 ; CHECK-X32-DAG:	callq	__tls_get_addr@PLT
 ; CHECK-I686:	ret
 ; CHECK-X32:	retq
 }
+
+define void @test9() nounwind {
+entry:
+    store i32* @tlsdstld, i32** @tlsptrld
+    %tmp.s = load i32, i32* @tlssrcld
+    store i32 %tmp.s, i32* @tlsdstld
+    ret void
+
+; CHECK-LABEL:	test9:
+; CHECK-I686:	calll	.L9$pb
+; CHECK-I686-NEXT:	.L9$pb:
+; CHECK-I686-NEXT:	popl
+; CHECK-I686:	addl	$_GLOBAL_OFFSET_TABLE_+(.L{{.*}}-.L9$pb), %ebx
+; CHECK-I686:	leal	tlsdstld@TLSLDM(%ebx), %eax
+; CHECK-X32:	leaq	tlsdstld@TLSLD(%rip), %rdi
+; CHECK-I686:	calll	___tls_get_addr@PLT
+; CHECK-X32:	callq	__tls_get_addr@PLT
+; CHECK:	leal	tlsdstld@DTPOFF(
+; CHECK:	movl	{{%.*}}, tlsptrld@DTPOFF(
+; CHECK:	movl	tlssrcld@DTPOFF(
+; CHECK:	movl	{{%.*}}, tlsdstld@DTPOFF(
+; CHECK-I686:	ret
+; CHECK-X32:	retq
+}
+
+define void @test10() nounwind {
+entry:
+    store i32* @tlsdstie, i32** @tlsptrie
+    %tmp.s = load i32, i32* @tlssrcie
+    store i32 %tmp.s, i32* @tlsdstie
+    ret void
+
+; CHECK-LABEL:	test10:
+; CHECK-I686:	calll	.L10$pb
+; CHECK-I686-NEXT:	.L10$pb:
+; CHECK-I686-NEXT:	popl
+; CHECK-I686:	addl	$_GLOBAL_OFFSET_TABLE_+(.L{{.*}}-.L10$pb),
+; CHECK-I686-DAG:	movl	tlsdstie@GOTNTPOFF(
+; CHECK-I686-DAG:	movl	%gs:0,
+; CHECK-X32-DAG:	movl	tlsdstie@GOTTPOFF(%rip),
+; CHECK-X32-DAG:	movl	%fs:0,
+; CHECK:	addl
+; CHECK-I686:	movl	tlsptrie@GOTNTPOFF(
+; CHECK-X32:	movl	tlsptrie@GOTTPOFF(%rip),
+; CHECK-I686:	movl	{{%.*}}, %gs:(
+; CHECK-X32:	movl	{{%.*}}, %fs:(
+; CHECK-I686:	movl	tlssrcie@GOTNTPOFF(
+; CHECK-X32:	movl	tlssrcie@GOTTPOFF(%rip),
+; CHECK-I686:	movl	%gs:(
+; CHECK-X32:	movl	%fs:(
+; CHECK-I686:	movl	{{%.*}}, %gs:(
+; CHECK-X32:	movl	{{%.*}}, %fs:(
+; CHECK-I686:	ret
+; CHECK-X32:	retq
+}
+
+define void @test11() nounwind {
+entry:
+    store i32* @tlsdstle, i32** @tlsptrle
+    %tmp.s = load i32, i32* @tlssrcle
+    store i32 %tmp.s, i32* @tlsdstle
+    ret void
+
+; CHECK-LABEL:	test11:
+; CHECK-I686:	movl	%gs:0,
+; CHECK-X32:	movl	%fs:0,
+; CHECK-I686:	leal	tlsdstle@NTPOFF(
+; CHECK-X32:	leal	tlsdstle@TPOFF(
+; CHECK-I686:	movl	{{%.*}}, %gs:tlsptrle@NTPOFF
+; CHECK-X32:	movl	{{%.*}}, %fs:tlsptrle@TPOFF
+; CHECK-I686:	movl	%gs:tlssrcle@NTPOFF,
+; CHECK-X32:	movl	%fs:tlssrcle@TPOFF,
+; CHECK-I686:	movl	{{%.*}}, %gs:tlsdstle@NTPOFF
+; CHECK-X32:	movl	{{%.*}}, %fs:tlsdstle@TPOFF
+; CHECK-I686:	ret
+; CHECK-X32:	retq
+}