#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 main();
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int problemB(void) {
  int current = 0, resistance = 0, voltage = 0;
  printf("Input Current (I): ");
  scanf("%d", &current);
  printf("Input Resistance (R): ");
  scanf("%d", &resistance);
  voltage = current * resistance;
  printf("V = Voltage = IR = Current * Resistance = %d * %d = %d \n", current,
         resistance, voltage);
  return main();
}


x86 assembly (clang, -O0):
<problemB>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb2(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xea5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe94(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x4(%rbp),%eax
imul   -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
mov    -0xc(%rbp),%ecx
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x0,%al
call   1040 <main@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<problemB>:
push   %rbx
sub    $0x10,%rsp
movl   $0x0,0xc(%rsp)
movl   $0x0,0x8(%rsp)
lea    0xeb4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeba(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xea9(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%esi
mov    0x8(%rsp),%edx
mov    %edx,%ecx
imul   %esi,%ecx
lea    0xe98(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <main@plt>
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Input Current (I): \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [23 x i8] c"Input Resistance (R): \00"
@.str.3 = [57 x i8] c"V = Voltage = IR = Current * Resistance = %d * %d = %d \0A\00"
define i32 @problemB() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%8 = load i32, i32* %1
%9 = load i32, i32* %2
%10 = mul nsw i32 %8, %9
store i32 %10, i32* %3
%11 = load i32, i32* %1
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.3, i64 0, i64 0), i32 %11, i32 %12, i32 %13)
%15 = call i32 (...) @main()
ret i32 %15
}

LLVM IR (-O2):
@.str = [20 x i8] c"Input Current (I): \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [23 x i8] c"Input Resistance (R): \00"
@.str.3 = [57 x i8] c"V = Voltage = IR = Current * Resistance = %d * %d = %d \0A\00"
define i32 @problemB() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%4 = bitcast i32* %2 to i8*
store i32 0, i32* %2
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = load i32, i32* %1
%10 = load i32, i32* %2
%11 = mul nsw i32 %10, %9
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @.str.3, i64 0, i64 0), i32 %9, i32 %10, i32 %11)
%13 = call i32 (...) @main()
ret i32 %13
}