; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
@tm_nest_level = internal thread_local global i32 0
define i64 @z() nounwind {
-; FIXME: The codegen here is primitive at best and could be much better.
-; The add and the moves can be folded together.
-; CHECK-DAG: movq $tm_nest_level@TPOFF, %rcx
-; CHECK-DAG: movq %fs:0, %rax
-; CHECK: addl %ecx, %eax
+; CHECK: movq $tm_nest_level@TPOFF, %r[[R0:[abcd]]]x
+; CHECK-NEXT: addl %fs:0, %e[[R0]]x
+; CHECK-NEXT: andq $100, %r[[R0]]x
+
ret i64 and (i64 ptrtoint (i32* @tm_nest_level to i64), i64 100)
}