#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 */
typedef int /*<<< orphan*/ FILE;

/* Variables and functions */
int fscanf(int /*<<< orphan*/ *, char *, int *);
int /*<<< orphan*/ pclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *popen(char *, char *);
int CpuLoad() {
  FILE *f;
  int result = 0;
  f = popen("./cpu.sh", "r");
  if (!f)
    return 0;
  if (fscanf(f, "%d", &result) == 1) {
  }
  pclose(f);
  return result;
}


x86 assembly (clang, -O0):
<CpuLoad>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x14(%rbp)
lea    0xeba(%rip),%rdi
lea    0xebc(%rip),%rsi
call   1050 <popen@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    116d <CpuLoad+0x3d>
movl   $0x0,-0x4(%rbp)
jmp    119e <CpuLoad+0x6e>
mov    -0x10(%rbp),%rdi
lea    0xe93(%rip),%rsi
lea    -0x14(%rbp),%rdx
call   1040 <fscanf@plt>
cmp    $0x1,%eax
jne    118f <CpuLoad+0x5f>
jmp    118f <CpuLoad+0x5f>
mov    -0x10(%rbp),%rdi
call   1030 <pclose@plt>
mov    -0x14(%rbp),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<CpuLoad>:
push   %rbx
sub    $0x10,%rsp
movl   $0x0,0xc(%rsp)
lea    0xebc(%rip),%rdi
lea    0xebe(%rip),%rsi
call   1050 <popen@plt>
test   %rax,%rax
je     117a <CpuLoad+0x4a>
mov    %rax,%rbx
lea    0xeac(%rip),%rsi
lea    0xc(%rsp),%rdx
mov    %rax,%rdi
call   1040 <fscanf@plt>
mov    %rbx,%rdi
call   1030 <pclose@plt>
mov    0xc(%rsp),%eax
jmp    117c <CpuLoad+0x4c>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [9 x i8] c"./cpu.sh\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @CpuLoad() {
%1 = alloca i32
%2 = alloca i32*
%3 = alloca i32
store i32 0, i32* %3
%4 = call i32* @popen(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
store i32* %4, i32** %2
%5 = load i32*, i32** %2
%6 = icmp ne i32* %5, null
br i1 %6, label %8, label %7
7: ; preds = %0
store i32 0, i32* %1
br label %17
8: ; preds = %0
%9 = load i32*, i32** %2
%10 = call i32 @fscanf(i32* %9, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %3)
%11 = icmp eq i32 %10, 1
br i1 %11, label %12, label %13
12: ; preds = %8
br label %13
13: ; preds = %12, %8
%14 = load i32*, i32** %2
%15 = call i32 @pclose(i32* %14)
%16 = load i32, i32* %3
store i32 %16, i32* %1
br label %17
17: ; preds = %13, %7
%18 = load i32, i32* %1
ret i32 %18
}

LLVM IR (-O2):
@.str = [9 x i8] c"./cpu.sh\00"
@.str.1 = [2 x i8] c"r\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @CpuLoad() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%3 = tail call i32* @popen(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%4 = icmp eq i32* %3, null
br i1 %4, label %9, label %5
5: ; preds = %0
%6 = call i32 @fscanf(i32* %3, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%7 = call i32 @pclose(i32* %3)
%8 = load i32, i32* %1
br label %9
9: ; preds = %0, %5
%10 = phi i32 [ %8, %5 ], [ 0, %0 ]
ret i32 %10
}