look for a best way to impl counter..

gistfile1.cpp

The Code:
#include <cstdio>

#define MAX_COUNT  (11)

void someFunction()
{
	puts("unko");
}

int counter_for_if = 0;
void counter_if_process()
{
	counter_for_if++;

	if (counter_for_if >= MAX_COUNT) {
		counter_for_if = 0;
		someFunction();
	}
}

int counter_for_conditional_op = 0;
void counter_conditional_op()
{
	counter_for_conditional_op = ++counter_for_conditional_op >=  MAX_COUNT ? 0 : counter_for_conditional_op;

	if (counter_for_conditional_op == 0) {
		someFunction();
	}
}


int counter_for_modulo = 0;
void modulo_counter_process()
{
	counter_for_modulo = (++counter_for_modulo) % MAX_COUNT;

	if (counter_for_modulo == 0) {
		someFunction();
	}
}
----------------------------------------------------------------------------
Compile with:
clang++ -O3 -S -mllvm --x86-asm-syntax=intel unko.cpp -o unko.intel.s
 
where
clang++ -v
Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)
Target: x86_64-apple-darwin12.2.0
----------------------------------------------------------------------------
The Result (simpilified):

__Z18counter_if_processv:               ## @_Z18counter_if_processv
	push	RBP
	mov	RBP, RSP
	mov	EAX, DWORD PTR [RIP + _counter_for_if]
	inc	EAX
	mov	DWORD PTR [RIP + _counter_for_if], EAX
	cmp	EAX, 11
	jl	LBB1_1
	mov	DWORD PTR [RIP + _counter_for_if], 0
	lea	RDI, QWORD PTR [RIP + L_.str]
	pop	RBP
	jmp	_puts                   ## TAILCALL
LBB1_1:
	pop	RBP
	ret

__Z22counter_conditional_opv:           ## @_Z22counter_conditional_opv
	push	RBP
	mov	RBP, RSP
	mov	EAX, DWORD PTR [RIP + _counter_for_conditional_op]
	inc	EAX
	xor	ECX, ECX
	cmp	EAX, 10
	cmovle	ECX, EAX
	mov	DWORD PTR [RIP + _counter_for_conditional_op], ECX
	test	ECX, ECX
	je	LBB2_2
	pop	RBP
	ret
LBB2_2:
	lea	RDI, QWORD PTR [RIP + L_.str]
	pop	RBP
	jmp	_puts                   ## TAILCALL

__Z22modulo_counter_processv:           ## @_Z22modulo_counter_processv
	push	RBP
	mov	RBP, RSP

	mov	EAX, DWORD PTR [RIP + _counter_for_modulo]
	lea	ECX, DWORD PTR [RAX + 1]
	movsxd	RCX, ECX
	imul	RCX, RCX, 780903145
	mov	RDX, RCX
	shr	RDX, 63
	sar	RCX, 33
	add	ECX, EDX
	imul	ECX, ECX, 11
	neg	ECX
	lea	EAX, DWORD PTR [RAX + RCX + 1]
	mov	DWORD PTR [RIP + _counter_for_modulo], EAX
	test	EAX, EAX
	je	LBB3_2
	pop	RBP
	ret
LBB3_2:
	lea	RDI, QWORD PTR [RIP + L_.str]
	pop	RBP
	jmp	_puts                   ## TAILCALL

	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	 "unko"