#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 /*<<< orphan*/ scanf(char *, int *);
int main() {
  int num, maior;
  scanf("%d", &num);
  maior = num;
  while (num != 0) {
    if (num > maior)
      maior = num;
    scanf("%d", &num);
  }
  printf("%d\n", maior);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
cmpl   $0x0,-0x8(%rbp)
je     1176 <main+0x56>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jle    1161 <main+0x41>
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
lea    0xe98(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
jmp    1145 <main+0x25>
mov    -0xc(%rbp),%esi
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x10,%rsp
lea    0xed0(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%ebx
test   %ebx,%ebx
je     116a <main+0x4a>
lea    0xeb7(%rip),%r14
lea    0xc(%rsp),%r15
mov    %ebx,%eax
cmp    %ebx,%eax
cmovg  %eax,%ebx
mov    %r14,%rdi
mov    %r15,%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%eax
test   %eax,%eax
jne    1150 <main+0x30>
jmp    116c <main+0x4c>
xor    %ebx,%ebx
lea    0xe90(%rip),%rdi
mov    %ebx,%esi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%5 = load i32, i32* %2
store i32 %5, i32* %3
br label %6
6: ; preds = %15, %0
%7 = load i32, i32* %2
%8 = icmp ne i32 %7, 0
br i1 %8, label %9, label %17
9: ; preds = %6
%10 = load i32, i32* %2
%11 = load i32, i32* %3
%12 = icmp sgt i32 %10, %11
br i1 %12, label %13, label %15
13: ; preds = %9
%14 = load i32, i32* %2
store i32 %14, i32* %3
br label %15
15: ; preds = %13, %9
%16 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
br label %6
17: ; preds = %6
%18 = load i32, i32* %3
%19 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %18)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = icmp eq i32 %4, 0
br i1 %5, label %14, label %6
6: ; preds = %0, %6
%7 = phi i32 [ %10, %6 ], [ %4, %0 ]
%8 = phi i32 [ %12, %6 ], [ %4, %0 ]
%9 = icmp sgt i32 %8, %7
%10 = select i1 %9, i32 %8, i32 %7
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%12 = load i32, i32* %1
%13 = icmp eq i32 %12, 0
br i1 %13, label %14, label %6
14: ; preds = %6, %0
%15 = phi i32 [ 0, %0 ], [ %10, %6 ]
%16 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %15)
ret i32 0
}