gcc -O3 dummyhash.s

	.file	"dummyhash.c"
	.text
	.p2align 4,,15
	.globl	dummyhash
	.type	dummyhash, @function
dummyhash:
.LFB12:
	.cfi_startproc
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	cmpl	$3, %esi
	movq	%rdi, %rax
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	jle	.L2
	leal	-4(%rsi), %ebx
	movq	%rdi, %r11
	movq	%rdi, %r8
	andl	$15, %r11d
	movl	%esi, %eax
	shrl	$2, %ebx
	shrq	$2, %r11
	leal	1(%rbx), %ebp
	negq	%r11
	andl	$3, %r11d
	cmpl	%ebp, %r11d
	cmova	%ebp, %r11d
	testl	%r11d, %r11d
	movl	%r11d, %r13d
	je	.L3
	xorl	%r9d, %r9d
	.p2align 4,,10
	.p2align 3
.L4:
	movl	(%r8), %r10d
	addl	$1, %r9d
	addq	$4, %r8
	addl	%eax, %r10d
	subl	$4, %eax
	xorl	%r10d, %edx
	cmpl	%r9d, %r11d
	ja	.L4
	cmpl	%r11d, %ebp
	je	.L5
.L3:
	movl	%ebp, %r12d
	subl	%r11d, %r12d
	movl	%r12d, %r11d
	shrl	$2, %r11d
	leal	0(,%r11,4), %ebp
	testl	%ebp, %ebp
	je	.L19
	leal	-4(%rax), %r9d
	movl	%eax, -24(%rsp)
	leaq	(%rdi,%r13,4), %r10
	movdqa	.LC0(%rip), %xmm3
	movl	%r9d, -20(%rsp)
	leal	-8(%rax), %r9d
	movd	-20(%rsp), %xmm2
	movl	%r9d, -16(%rsp)
	leal	-12(%rax), %r9d
	movd	-16(%rsp), %xmm1
	movl	%r9d, -12(%rsp)
	xorl	%r9d, %r9d
	movd	-12(%rsp), %xmm0
	punpckldq	%xmm0, %xmm1
	movd	-24(%rsp), %xmm0
	punpckldq	%xmm2, %xmm0
	punpcklqdq	%xmm1, %xmm0
	pxor	%xmm1, %xmm1
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L16:
	movdqa	%xmm2, %xmm0
.L7:
	movdqa	%xmm0, %xmm2
	addl	$1, %r9d
	paddd	(%r10), %xmm0
	addq	$16, %r10
	cmpl	%r11d, %r9d
	paddd	%xmm3, %xmm2
	pxor	%xmm0, %xmm1
	jb	.L16
	movdqa	%xmm1, %xmm0
	movl	%ebp, %r9d
	negl	%r9d
	psrldq	$8, %xmm0
	pxor	%xmm0, %xmm1
	leal	(%rax,%r9,4), %eax
	movl	%ebp, %r9d
	leaq	(%r8,%r9,4), %r8
	movdqa	%xmm1, %xmm0
	psrldq	$4, %xmm0
	pxor	%xmm0, %xmm1
	movd	%xmm1, -20(%rsp)
	xorl	-20(%rsp), %edx
	cmpl	%ebp, %r12d
	je	.L5
	.p2align 4,,10
	.p2align 3
.L19:
	movl	(%r8), %r9d
	addq	$4, %r8
	addl	%eax, %r9d
	subl	$4, %eax
	xorl	%r9d, %edx
	cmpl	$3, %eax
	jg	.L19
.L5:
	movl	%ebx, %eax
	negl	%eax
	leal	-4(%rsi,%rax,4), %esi
	leaq	4(%rdi,%rbx,4), %rax
.L2:
	cmpl	$2, %esi
	je	.L12
	cmpl	$3, %esi
	je	.L13
	cmpl	$1, %esi
	je	.L11
	popq	%rbx
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	movl	%edx, (%rcx)
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L13:
	.cfi_restore_state
	movzbl	(%rax), %esi
	addq	$1, %rax
	addl	$3, %esi
	sall	$24, %esi
	xorl	%esi, %edx
.L12:
	movzbl	(%rax), %esi
	addq	$1, %rax
	addl	$2, %esi
	sall	$16, %esi
	xorl	%esi, %edx
.L11:
	movzbl	(%rax), %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	addl	$1, %eax
	xorl	%eax, %edx
	movl	%edx, (%rcx)
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE12:
	.size	dummyhash, .-dummyhash
	.section	.rodata.cst16,"aM",@progbits,16
	.align 16
.LC0:
	.long	-16
	.long	-16
	.long	-16
	.long	-16
	.ident	"GCC: (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3"
	.section	.note.GNU-stack,"",@progbits