#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 main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("Usage: program-name argument\n");
    return 1;
  }
  unsigned char c = argv[1][0];
  if (c == 127)
    printf("win\n");
  else
    printf("lose\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    1148 <main+0x38>
lea    0xec9(%rip),%rdi
call   1030 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    1186 <main+0x76>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    (%rax),%al
mov    %al,-0x11(%rbp)
movzbl -0x11(%rbp),%eax
cmp    $0x7f,%eax
jne    1173 <main+0x63>
lea    0xeb5(%rip),%rdi
call   1030 <printf@plt>
jmp    117f <main+0x6f>
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jge    1124 <main+0x14>
mov    $0x1,%ebx
lea    0xee7(%rip),%rdi
jmp    113f <main+0x2f>
mov    0x8(%rsi),%rax
cmpb   $0x7f,(%rax)
lea    0xed3(%rip),%rax
lea    0xec7(%rip),%rdi
cmove  %rax,%rdi
xor    %ebx,%ebx
call   1030 <puts@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [30 x i8] c"Usage: program-name argument\0A\00"
@.str.1 = [5 x i8] c"win\0A\00"
@.str.2 = [6 x i8] c"lose\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp slt i32 %7, 2
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %25
11: ; preds = %2
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 1
%14 = load i8*, i8** %13
%15 = getelementptr inbounds i8, i8* %14, i64 0
%16 = load i8, i8* %15
store i8 %16, i8* %6
%17 = load i8, i8* %6
%18 = zext i8 %17 to i32
%19 = icmp eq i32 %18, 127
br i1 %19, label %20, label %22
20: ; preds = %11
%21 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
br label %24
22: ; preds = %11
%23 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
br label %24
24: ; preds = %22, %20
store i32 0, i32* %3
br label %25
25: ; preds = %24, %9
%26 = load i32, i32* %3
ret i32 %26
}

LLVM IR (-O2):
@str = [5 x i8] c"lose\00"
@str.3 = [4 x i8] c"win\00"
@str.4 = [29 x i8] c"Usage: program-name argument\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %10, label %4
4: ; preds = %2
%5 = getelementptr inbounds i8*, i8** %1, i64 1
%6 = load i8*, i8** %5
%7 = load i8, i8* %6
%8 = icmp eq i8 %7, 127
%9 = select i1 %8, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @str.3, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str, i64 0, i64 0)
br label %10
10: ; preds = %4, %2
%11 = phi i8* [ getelementptr inbounds ([29 x i8], [29 x i8]* @str.4, i64 0, i64 0), %2 ], [ %9, %4 ]
%12 = phi i32 [ 1, %2 ], [ 0, %4 ]
%13 = tail call i32 @puts(i8* dereferenceable(1) %11)
ret i32 %12
}