#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 f(int, int);
int /*<<< orphan*/ fdopen(int, char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, int);
int /*<<< orphan*/ printf(char *, int);
int /*<<< orphan*/ puts(char *);
int main(void) {
  puts("hi");
  puts("hi");
  printf("%d\n", f(10, 5));
  printf("%d\n", f(5, 10));
  fprintf(fdopen(1, "w"), "hi there %d\n", 42);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe9a(%rip),%rdi
call   1030 <puts@plt>
lea    0xe8e(%rip),%rdi
call   1030 <puts@plt>
mov    $0xa,%edi
mov    $0x5,%esi
call   1040 <f@plt>
mov    %eax,%esi
lea    0xe7f(%rip),%rdi
call   1050 <printf@plt>
mov    $0x5,%edi
mov    $0xa,%esi
call   1040 <f@plt>
mov    %eax,%esi
lea    0xe62(%rip),%rdi
call   1050 <printf@plt>
mov    $0x1,%edi
lea    0xe46(%rip),%rsi
call   1070 <fdopen@plt>
mov    %eax,%edi
lea    0xe3a(%rip),%rsi
mov    $0x2a,%edx
call   1060 <fprintf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xea8(%rip),%rbx
mov    %rbx,%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
call   1030 <puts@plt>
mov    $0xa,%edi
mov    $0x5,%esi
call   1040 <f@plt>
lea    0xe90(%rip),%rbx
mov    %rbx,%rdi
mov    %eax,%esi
call   1050 <printf@plt>
mov    $0x5,%edi
mov    $0xa,%esi
call   1040 <f@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1050 <printf@plt>
lea    0xe5b(%rip),%rsi
mov    $0x1,%edi
call   1070 <fdopen@plt>
lea    0xe4c(%rip),%rsi
mov    %eax,%edi
mov    $0x2a,%edx
call   1060 <fprintf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"hi\00"
@.str.1 = [4 x i8] c"%d\0A\00"
@.str.2 = [2 x i8] c"w\00"
@.str.3 = [13 x i8] c"hi there %d\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @puts(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @puts(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @f(i32 10, i32 5)
%5 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = call i32 @f(i32 5, i32 10)
%7 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %6)
%8 = call i32 @fdopen(i32 1, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @fprintf(i32 %8, i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), i32 42)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"hi\00"
@.str.1 = [4 x i8] c"%d\0A\00"
@.str.2 = [2 x i8] c"w\00"
@.str.3 = [13 x i8] c"hi there %d\0A\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%3 = tail call i32 @f(i32 10, i32 5)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 @f(i32 5, i32 10)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%7 = tail call i32 @fdopen(i32 1, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0), i32 42)
ret i32 0
}