+; RUN: llc < %s -mtriple x86_64-apple-darwin | FileCheck %s
+
+@a = thread_local global i32 4, align 4
+
+define i32 @f2(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5) {
+entry:
+; Parameters are in %edi, %esi, %edx, %ecx, %r8d, there is no need to save
+; these parameters except the one in %edi, before making the TLS call.
+; %edi is used to pass parameter to the TLS call.
+; CHECK-NOT: movl %r8d
+; CHECK-NOT: movl %ecx
+; CHECK-NOT: movl %edx
+; CHECK-NOT: movl %esi
+; CHECK: movq {{.*}}TLVP{{.*}}, %rdi
+; CHECK-NEXT: callq
+; CHECK-NEXT: movl (%rax),
+; CHECK-NOT: movl {{.*}}, %esi
+; CHECK-NOT: movl {{.*}}, %edx
+; CHECK-NOT: movl {{.*}}, %ecx
+; CHECK-NOT: movl {{.*}}, %r8d
+; CHECK: callq
+ %0 = load i32, i32* @a, align 4
+ %call = tail call i32 @f3(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5)
+ %add = add nsw i32 %call, %0
+ ret i32 %add
+}
+
+declare i32 @f3(i32, i32, i32, i32, i32)