Assembly code for iteration over StringPiece (by-value)

stringpiecefindtest-val.s

# Source:
# void StringPieceFindTestVal(const std::vector<base::StringPiece>& vector) {
#   for (base::StringPiece piece : vector)
#     printf("%zu\n", piece.find('x'));
# }
#
# Compiler: clang++ Linux 64-bit

# BB#0:                                 # %entry
	pushq	%rbp
	movq	%rsp, %rbp
	pushq	%r15
	pushq	%r14
	pushq	%r12
	pushq	%rbx
	subq	$16, %rsp
	movq	(%rdi), %rbx
	movq	8(%rdi), %r12
	cmpq	%r12, %rbx
	je	.LBB25_3
# BB#1:
	leaq	-48(%rbp), %r14
	leaq	.L.str.17(%rip), %r15
	.p2align	4, 0x90
.LBB25_2:                               # %for.body
	movups	(%rbx), %xmm0
	movaps	%xmm0, -48(%rbp)
	movl	$120, %esi
	xorl	%edx, %edx
	movq	%r14, %rdi
	callq	_ZN4base8internal4findERKNS_16BasicStringPieceISsEEcm@PLT
	movq	%rax, %rcx
	xorl	%eax, %eax
	movq	%r15, %rdi
	movq	%rcx, %rsi
	callq	printf@PLT
	addq	$16, %rbx
	cmpq	%rbx, %r12
	jne	.LBB25_2
.LBB25_3:                               # %for.cond.cleanup
	addq	$16, %rsp
	popq	%rbx
	popq	%r12
	popq	%r14
	popq	%r15
	popq	%rbp
	retq