#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*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ stderr;
int /*<<< orphan*/ strcmp(char *, char *);
int /*<<< orphan*/ xcoll1(int);
int main(int argc, char *argv[]) {
  char *arg;
  int i;
  if (argc != 2) {
    fprintf(stderr, "usage: %s <fi|sv>\n", argv[0]);
    exit(1);
  }
  arg = argv[1];
  if (!strcmp(arg, "fi")) {
    xcoll1(0);
  } else if (!strcmp(arg, "sv")) {
    xcoll1(1);
  } else {
    fprintf(stderr, "usage: %s <fi|sv>\n", argv[0]);
    exit(1);
  }
  printf("\n");
  exit(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)
je     1196 <main+0x46>
mov    0x2e69(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe79(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rdi
lea    0xe66(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%eax
jne    11c7 <main+0x77>
xor    %edi,%edi
call   1060 <xcoll1@plt>
jmp    121a <main+0xca>
mov    -0x18(%rbp),%rdi
lea    0xe44(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%eax
jne    11ef <main+0x9f>
mov    $0x1,%edi
call   1060 <xcoll1@plt>
jmp    1215 <main+0xc5>
mov    0x2dea(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xdfa(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
jmp    121a <main+0xca>
lea    0xdf0(%rip),%rdi
call   1030 <printf@plt>
xor    %edi,%edi
call   1070 <exit@plt>

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
mov    %rsi,%rbx
cmp    $0x2,%edi
jne    11a3 <main+0x53>
mov    0x8(%rbx),%r14
lea    0xeac(%rip),%rsi
mov    %r14,%rdi
call   1040 <strcmp@plt>
xor    %edi,%edi
test   %eax,%eax
je     118d <main+0x3d>
lea    0xe9a(%rip),%rsi
mov    %r14,%rdi
call   1040 <strcmp@plt>
mov    $0x1,%edi
test   %eax,%eax
jne    11a3 <main+0x53>
call   1060 <xcoll1@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %edi,%edi
call   1070 <exit@plt>
mov    0x2e36(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%rdx
lea    0xe4a(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [19 x i8] c"usage: %s <fi|sv>\0A\00"
@.str.1 = [3 x i8] c"fi\00"
@.str.2 = [3 x i8] c"sv\00"
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = load i32, i32* %4
%9 = icmp ne i32 %8, 2
br i1 %9, label %10, label %17
10: ; preds = %2
%11 = load i32, i32* @stderr
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 0
%14 = load i8*, i8** %13
%15 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0), i8* %14)
%16 = call i32 @exit(i32 1)
unreachable
17: ; preds = %2
%18 = load i8**, i8*** %5
%19 = getelementptr inbounds i8*, i8** %18, i64 1
%20 = load i8*, i8** %19
store i8* %20, i8** %6
%21 = load i8*, i8** %6
%22 = call i32 @strcmp(i8* %21, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%23 = icmp ne i32 %22, 0
br i1 %23, label %26, label %24
24: ; preds = %17
%25 = call i32 @xcoll1(i32 0)
br label %40
26: ; preds = %17
%27 = load i8*, i8** %6
%28 = call i32 @strcmp(i8* %27, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%29 = icmp ne i32 %28, 0
br i1 %29, label %32, label %30
30: ; preds = %26
%31 = call i32 @xcoll1(i32 1)
br label %39
32: ; preds = %26
%33 = load i32, i32* @stderr
%34 = load i8**, i8*** %5
%35 = getelementptr inbounds i8*, i8** %34, i64 0
%36 = load i8*, i8** %35
%37 = call i32 @fprintf(i32 %33, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0), i8* %36)
%38 = call i32 @exit(i32 1)
unreachable
39: ; preds = %30
br label %40
40: ; preds = %39, %24
%41 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%42 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [19 x i8] c"usage: %s <fi|sv>\0A\00"
@.str.1 = [3 x i8] c"fi\00"
@.str.2 = [3 x i8] c"sv\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = load i8*, i8** %1
%7 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0), i8* %6)
%8 = tail call i32 @exit(i32 1)
unreachable
9: ; preds = %2
%10 = getelementptr inbounds i8*, i8** %1, i64 1
%11 = load i8*, i8** %10
%12 = tail call i32 @strcmp(i8* dereferenceable(1) %11, i8* dereferenceable(3) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%13 = icmp eq i32 %12, 0
br i1 %13, label %22, label %14
14: ; preds = %9
%15 = tail call i32 @strcmp(i8* dereferenceable(1) %11, i8* dereferenceable(3) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%16 = icmp eq i32 %15, 0
br i1 %16, label %22, label %17
17: ; preds = %14
%18 = load i32, i32* @stderr
%19 = load i8*, i8** %1
%20 = tail call i32 @fprintf(i32 %18, i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0), i8* %19)
%21 = tail call i32 @exit(i32 1)
unreachable
22: ; preds = %14, %9
%23 = phi i32 [ 0, %9 ], [ 1, %14 ]
%24 = tail call i32 @xcoll1(i32 %23)
%25 = tail call i32 @putchar(i32 10)
%26 = tail call i32 @exit(i32 0)
unreachable
}