#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 atoi(char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ stderr;
int main(int argc, char *argv[]) {
  int count, i;
  if (argc != 3) {
    fprintf(stderr, "usage: %s firstname count\n", argv[0]);
    return -1;
  } else
    count = atoi(argv[2]);
  for (i = 0; i < count; i++)
    printf("Hello, %s!\n", argv[1]);
  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   $0x3,-0x8(%rbp)
je     1178 <main+0x48>
mov    0x2e89(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe99(%rip),%rsi
call   1040 <fprintf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11c4 <main+0x94>
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
call   1050 <atoi@plt>
mov    %eax,-0x14(%rbp)
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    11bd <main+0x8d>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rsi
lea    0xe71(%rip),%rdi
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    118f <main+0x5f>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %rsi,%rbx
cmp    $0x3,%edi
jne    1173 <main+0x43>
mov    0x10(%rbx),%rdi
call   1050 <atoi@plt>
xor    %r14d,%r14d
test   %eax,%eax
jle    1191 <main+0x61>
mov    %eax,%ebp
lea    0xec3(%rip),%r15
nopl   0x0(%rax,%rax,1)
mov    0x8(%rbx),%rsi
mov    %r15,%rdi
call   1030 <printf@plt>
add    $0xffffffff,%ebp
jne    1160 <main+0x30>
jmp    1191 <main+0x61>
mov    0x2e66(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%rdx
lea    0xe7a(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0xffffffff,%r14d
mov    %r14d,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@stderr = global i32 0
@.str = [27 x i8] c"usage: %s firstname count\0A\00"
@.str.1 = [12 x i8] c"Hello, %s!\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%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, 3
br i1 %9, label %10, label %16
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 ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %14)
store i32 -1, i32* %3
br label %35
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 2
%19 = load i8*, i8** %18
%20 = call i32 @atoi(i8* %19)
store i32 %20, i32* %6
br label %21
21: ; preds = %16
store i32 0, i32* %7
br label %22
22: ; preds = %31, %21
%23 = load i32, i32* %7
%24 = load i32, i32* %6
%25 = icmp slt i32 %23, %24
br i1 %25, label %26, label %34
26: ; preds = %22
%27 = load i8**, i8*** %5
%28 = getelementptr inbounds i8*, i8** %27, i64 1
%29 = load i8*, i8** %28
%30 = call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i8* %29)
br label %31
31: ; preds = %26
%32 = load i32, i32* %7
%33 = add nsw i32 %32, 1
store i32 %33, i32* %7
br label %22
34: ; preds = %22
store i32 0, i32* %3
br label %35
35: ; preds = %34, %10
%36 = load i32, i32* %3
ret i32 %36
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [27 x i8] c"usage: %s firstname count\0A\00"
@.str.1 = [12 x i8] c"Hello, %s!\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 3
br i1 %3, label %8, 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 ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %6)
br label %21
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 2
%10 = load i8*, i8** %9
%11 = tail call i32 @atoi(i8* %10)
%12 = icmp sgt i32 %11, 0
br i1 %12, label %13, label %21
13: ; preds = %8
%14 = getelementptr inbounds i8*, i8** %1, i64 1
br label %15
15: ; preds = %13, %15
%16 = phi i32 [ 0, %13 ], [ %19, %15 ]
%17 = load i8*, i8** %14
%18 = tail call i32 @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i8* %17)
%19 = add nuw nsw i32 %16, 1
%20 = icmp eq i32 %19, %11
br i1 %20, label %21, label %15
21: ; preds = %15, %8, %4
%22 = phi i32 [ -1, %4 ], [ 0, %8 ], [ 0, %15 ]
ret i32 %22
}