#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 bar(char *);
int foo(char *);
int /*<<< orphan*/ printf(char *, int);
int /*<<< orphan*/ puts(char *);
int main() {
  puts("begin");
  printf("foo result: %d\n", foo("bar"));
  printf("bar result: %d\n", bar("bar"));
  puts("end");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb4(%rip),%rdi
call   1060 <foo@plt>
mov    %eax,%esi
lea    0xe96(%rip),%rdi
call   1050 <printf@plt>
lea    0xe9a(%rip),%rdi
call   1040 <bar@plt>
mov    %eax,%esi
lea    0xe90(%rip),%rdi
call   1050 <printf@plt>
lea    0xe94(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xeb8(%rip),%rdi
call   1030 <puts@plt>
lea    0xec2(%rip),%rbx
mov    %rbx,%rdi
call   1060 <foo@plt>
lea    0xea3(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
mov    %rbx,%rdi
call   1040 <bar@plt>
lea    0xea1(%rip),%rdi
mov    %eax,%esi
call   1050 <printf@plt>
lea    0xea3(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"begin\00"
@.str.1 = [16 x i8] c"foo result: %d\0A\00"
@.str.2 = [4 x i8] c"bar\00"
@.str.3 = [16 x i8] c"bar result: %d\0A\00"
@.str.4 = [4 x i8] c"end\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @puts(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @foo(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = call i32 @bar(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.3, i64 0, i64 0), i32 %5)
%7 = call i32 @puts(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"begin\00"
@.str.1 = [16 x i8] c"foo result: %d\0A\00"
@.str.2 = [4 x i8] c"bar\00"
@.str.3 = [16 x i8] c"bar result: %d\0A\00"
@.str.4 = [4 x i8] c"end\00"
define i32 @main() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @foo(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%3 = tail call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i32 %2)
%4 = tail call i32 @bar(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%5 = tail call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.3, i64 0, i64 0), i32 %4)
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}