File: trivial-static-initializer.S

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// Test that basic MachO static initializers work. The main function in this
// test returns the value of 'x', which is initially 1 in the data section,
// and reset to 0 if the _static_init function is run. If the static initializer
// does not run then main will return 1, causing the test to be treated as a
// failure.
//
// RUN: %clang -c -o %t %s
// RUN: %llvm_jitlink %t

	.section	__TEXT,__text,regular,pure_instructions
	.build_version macos, 11, 0

# main returns the value of 'x', which is defined as 1 in the data section..
	.globl	_main
	.p2align	4, 0x90
_main:
	movl	_x(%rip), %eax
	retq

# static initializer sets the value of 'x' to zero.
	.section	__TEXT,__StaticInit,regular,pure_instructions
	.p2align	4, 0x90
_static_init:
	movl	$0, _x(%rip)
	retq

	.section	__DATA,__data
	.globl	_x
	.p2align	2
_x:
	.long	1

	.section	__DATA,__mod_init_func,mod_init_funcs
	.p2align	3
	.quad	_static_init

.subsections_via_symbols