Clang

	.section	__TEXT,__text,regular,pure_instructions
	.globl	__Z4funcPP1Xi
	.align	4, 0x90
__Z4funcPP1Xi:                          ## @_Z4funcPP1Xi
	.cfi_startproc
## BB#0:                                ## %entry
	pushq	%rbp
Ltmp3:
	.cfi_def_cfa_offset 16
Ltmp4:
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
Ltmp5:
	.cfi_def_cfa_register %rbp
	pushq	%rbx
Ltmp6:
	.cfi_offset %rbx, -24
                                        ## kill: ESI<def> ESI<kill> RSI<def>
	xorl	%eax, %eax
	testl	%esi, %esi
	jle	LBB0_8
## BB#1:                                ## %while.body.preheader
	leal	-1(%rsi), %ecx
	leaq	1(%rcx), %r8
	movabsq	$8589934590, %r9        ## imm = 0x1FFFFFFFE
	movq	%r8, %rax
	andq	%r9, %rax
	xorl	%r10d, %r10d
	andq	%r8, %r9
	je	LBB0_2
## BB#3:                                ## %vector.body.preheader
	subl	%eax, %esi
	leaq	(%rdi,%r9,8), %r10
	addq	$8, %rdi
	incq	%rcx
	andq	$-2, %rcx
	xorl	%eax, %eax
	xorl	%edx, %edx
	.align	4, 0x90
LBB0_4:                                 ## %vector.body
                                        ## =>This Inner Loop Header: Depth=1
	movq	-8(%rdi), %r11
	movq	(%rdi), %rbx
	addl	(%r11), %eax
	addl	(%rbx), %edx
	addq	$16, %rdi
	addq	$-2, %rcx
	jne	LBB0_4
## BB#5:
	movq	%r10, %rdi
	movq	%r9, %r10
	jmp	LBB0_6
LBB0_2:
	xorl	%eax, %eax
	xorl	%edx, %edx
LBB0_6:                                 ## %middle.block
	addl	%edx, %eax
	cmpq	%r10, %r8
	je	LBB0_8
	.align	4, 0x90
LBB0_7:                                 ## %while.body
                                        ## =>This Inner Loop Header: Depth=1
	movq	(%rdi), %rcx
	addl	(%rcx), %eax
	addq	$8, %rdi
	decl	%esi
	testl	%esi, %esi
	jg	LBB0_7
LBB0_8:                                 ## %while.end
                                        ## kill: EAX<def> EAX<kill> RAX<kill>
	popq	%rbx
	popq	%rbp
	retq
	.cfi_endproc

	.globl	_main
	.align	4, 0x90
_main:                                  ## @main
	.cfi_startproc
## BB#0:                                ## %entry
	pushq	%rbp
Ltmp9:
	.cfi_def_cfa_offset 16
Ltmp10:
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
Ltmp11:
	.cfi_def_cfa_register %rbp
	xorl	%eax, %eax
	popq	%rbp
	retq
	.cfi_endproc


.subsections_via_symbols