#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);
int main() {
  int c = 5;
  printf("c   = %d\n", c);
  printf("c-- = %d\n", c--);
  printf("c   = %d\n\n", c);
  c = 5;
  printf("  c = %d\n", c);
  printf("--c = %d\n", --c);
  printf("  c = %d\n", c);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x5,-0x8(%rbp)
mov    -0x8(%rbp),%esi
lea    0xed0(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
mov    %esi,%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
lea    0xec3(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xebe(%rip),%rdi
call   1030 <printf@plt>
movl   $0x5,-0x8(%rbp)
mov    -0x8(%rbp),%esi
lea    0xeb3(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
add    $0xffffffff,%esi
mov    %esi,-0x8(%rbp)
lea    0xea8(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%esi
lea    0xe8f(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xee8(%rip),%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
lea    0xee1(%rip),%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
lea    0xeda(%rip),%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
lea    0xed4(%rip),%rbx
mov    %rbx,%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
lea    0xeca(%rip),%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [10 x i8] c"c = %d\0A\00"
@.str.1 = [10 x i8] c"c-- = %d\0A\00"
@.str.2 = [11 x i8] c"c = %d\0A\0A\00"
@.str.3 = [10 x i8] c" c = %d\0A\00"
@.str.4 = [10 x i8] c"--c = %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 5, i32* %2
%3 = load i32, i32* %2
%4 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = load i32, i32* %2
%6 = add nsw i32 %5, -1
store i32 %6, i32* %2
%7 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i32 %5)
%8 = load i32, i32* %2
%9 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 %8)
store i32 5, i32* %2
%10 = load i32, i32* %2
%11 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %2
%13 = add nsw i32 %12, -1
store i32 %13, i32* %2
%14 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i32 %13)
%15 = load i32, i32* %2
%16 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 %15)
ret i32 0
}

LLVM IR (-O2):
@.str = [10 x i8] c"c = %d\0A\00"
@.str.1 = [10 x i8] c"c-- = %d\0A\00"
@.str.2 = [11 x i8] c"c = %d\0A\0A\00"
@.str.3 = [10 x i8] c" c = %d\0A\00"
@.str.4 = [10 x i8] c"--c = %d\0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 5)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0), i32 5)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 4)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 5)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i32 4)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 4)
ret i32 0
}