foo.ll

target triple = "x86_64-apple-darwin"

@foo = thread_local global i32 0

define i32 @bar() {
start:
  %current = load i32, i32* @foo
  %eq_one = icmp eq i32 %current, 1
  br i1 %eq_one, label %exit, label %store

store:
  store i32 1, i32* @foo
  br label %exit

exit:
  %val = phi i32 [ 2, %start ], [ 3, %store ]
  ret i32 %val
}

foo.s

	.section	__TEXT,__text,regular,pure_instructions
	.globl	_bar                    ## -- Begin function bar
	.p2align	4, 0x90
_bar:                                   ## @bar
	.cfi_startproc
## %bb.0:                               ## %start
	pushq	%rax
	.cfi_def_cfa_offset 16
	movq	_foo@TLVP(%rip), %rdi
	callq	*(%rdi)
	movq	%rax, %rcx
	movl	$2, %eax
	cmpl	$1, (%rcx)
	je	LBB0_2
## %bb.1:                               ## %store
	movq	_foo@TLVP(%rip), %rdi
	callq	*(%rdi)
	movl	$1, (%rax)
	movl	$3, %eax
LBB0_2:                                 ## %exit
	popq	%rcx
	retq
	.cfi_endproc
                                        ## -- End function
.tbss _foo$tlv$init, 4, 2               ## @foo

	.section	__DATA,__thread_vars,thread_local_variables
	.globl	_foo
_foo:
	.quad	__tlv_bootstrap
	.quad	0
	.quad	_foo$tlv$init


.subsections_via_symbols