#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ test_default(int);
int /*<<< orphan*/ test_simple(int);
int main() {
  for (int i = 0; i < 10; ++i) {
    test_simple(i);
  }
  printf("\n");
  for (int i = 0; i < 10; ++i) {
    test_default(i);
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
cmpl   $0xa,-0x8(%rbp)
jge    1166 <main+0x36>
mov    -0x8(%rbp),%edi
call   1050 <test_simple@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1146 <main+0x16>
lea    0xe93(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0xc(%rbp)
cmpl   $0xa,-0xc(%rbp)
jge    1199 <main+0x69>
mov    -0xc(%rbp),%edi
call   1040 <test_default@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1179 <main+0x49>
lea    0xe60(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %edi,%edi
call   1050 <test_simple@plt>
mov    $0x1,%edi
call   1050 <test_simple@plt>
mov    $0x2,%edi
call   1050 <test_simple@plt>
mov    $0x3,%edi
call   1050 <test_simple@plt>
mov    $0x4,%edi
call   1050 <test_simple@plt>
mov    $0x5,%edi
call   1050 <test_simple@plt>
mov    $0x6,%edi
call   1050 <test_simple@plt>
mov    $0x7,%edi
call   1050 <test_simple@plt>
mov    $0x8,%edi
call   1050 <test_simple@plt>
mov    $0x9,%edi
call   1050 <test_simple@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %edi,%edi
call   1040 <test_default@plt>
mov    $0x1,%edi
call   1040 <test_default@plt>
mov    $0x2,%edi
call   1040 <test_default@plt>
mov    $0x3,%edi
call   1040 <test_default@plt>
mov    $0x4,%edi
call   1040 <test_default@plt>
mov    $0x5,%edi
call   1040 <test_default@plt>
mov    $0x6,%edi
call   1040 <test_default@plt>
mov    $0x7,%edi
call   1040 <test_default@plt>
mov    $0x8,%edi
call   1040 <test_default@plt>
mov    $0x9,%edi
call   1040 <test_default@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
br label %4
4: ; preds = %10, %0
%5 = load i32, i32* %2
%6 = icmp slt i32 %5, 10
br i1 %6, label %7, label %13
7: ; preds = %4
%8 = load i32, i32* %2
%9 = call i32 @test_simple(i32 %8)
br label %10
10: ; preds = %7
%11 = load i32, i32* %2
%12 = add nsw i32 %11, 1
store i32 %12, i32* %2
br label %4
13: ; preds = %4
%14 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %3
br label %15
15: ; preds = %21, %13
%16 = load i32, i32* %3
%17 = icmp slt i32 %16, 10
br i1 %17, label %18, label %24
18: ; preds = %15
%19 = load i32, i32* %3
%20 = call i32 @test_default(i32 %19)
br label %21
21: ; preds = %18
%22 = load i32, i32* %3
%23 = add nsw i32 %22, 1
store i32 %23, i32* %3
br label %15
24: ; preds = %15
%25 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%26 = load i32, i32* %1
ret i32 %26
}

LLVM IR (-O2):
define i32 @main() {
%1 = tail call i32 @test_simple(i32 0)
%2 = tail call i32 @test_simple(i32 1)
%3 = tail call i32 @test_simple(i32 2)
%4 = tail call i32 @test_simple(i32 3)
%5 = tail call i32 @test_simple(i32 4)
%6 = tail call i32 @test_simple(i32 5)
%7 = tail call i32 @test_simple(i32 6)
%8 = tail call i32 @test_simple(i32 7)
%9 = tail call i32 @test_simple(i32 8)
%10 = tail call i32 @test_simple(i32 9)
%11 = tail call i32 @putchar(i32 10)
%12 = tail call i32 @test_default(i32 0)
%13 = tail call i32 @test_default(i32 1)
%14 = tail call i32 @test_default(i32 2)
%15 = tail call i32 @test_default(i32 3)
%16 = tail call i32 @test_default(i32 4)
%17 = tail call i32 @test_default(i32 5)
%18 = tail call i32 @test_default(i32 6)
%19 = tail call i32 @test_default(i32 7)
%20 = tail call i32 @test_default(i32 8)
%21 = tail call i32 @test_default(i32 9)
%22 = tail call i32 @putchar(i32 10)
ret i32 0
}