#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*/ fflush(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ putchar(char);
int /*<<< orphan*/ say_anonymous_hello();
int /*<<< orphan*/ stdout;
int main(int argc, char **argv) {
  if (argc <= 1)
    say_anonymous_hello();
  else {
    printf("Hello,");
    for (int i = 1; i < argc; i++)
      printf(" %s", argv[i]);
    putchar('\n');
  };
  fflush(stdout);
  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   $0x1,-0x8(%rbp)
jg     116c <main+0x2c>
mov    $0x0,%al
call   1040 <say_anonymous_hello@plt>
jmp    11bf <main+0x7f>
lea    0xe8d(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11b5 <main+0x75>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
lea    0xe67(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1181 <main+0x41>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    0x2e1a(%rip),%rax
mov    (%rax),%edi
call   1060 <fflush@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
cmp    $0x1,%edi
jg     1155 <main+0x15>
xor    %eax,%eax
call   1040 <say_anonymous_hello@plt>
jmp    11a1 <main+0x61>
mov    %rsi,%r15
mov    %edi,%ebp
lea    0xe9f(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %ebp,%ebp
mov    $0x1,%ebx
lea    0xe91(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
mov    (%r15,%rbx,8),%rsi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1180 <main+0x40>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    0x2e38(%rip),%rax
mov    (%rax),%edi
call   1060 <fflush@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [7 x i8] c"Hello,\00"
@.str.1 = [4 x i8] c" %s\00"
@stdout = global i32 0
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp sle i32 %7, 1
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = call i32 (...) @say_anonymous_hello()
br label %29
11: ; preds = %2
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %6
br label %13
13: ; preds = %24, %11
%14 = load i32, i32* %6
%15 = load i32, i32* %4
%16 = icmp slt i32 %14, %15
br i1 %16, label %17, label %27
17: ; preds = %13
%18 = load i8**, i8*** %5
%19 = load i32, i32* %6
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8*, i8** %18, i64 %20
%22 = load i8*, i8** %21
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %22)
br label %24
24: ; preds = %17
%25 = load i32, i32* %6
%26 = add nsw i32 %25, 1
store i32 %26, i32* %6
br label %13
27: ; preds = %13
%28 = call i32 @putchar(i8 signext 10)
br label %29
29: ; preds = %27, %9
%30 = load i32, i32* @stdout
%31 = call i32 @fflush(i32 %30)
ret i32 0
}

LLVM IR (-O2):
@.str = [7 x i8] c"Hello,\00"
@.str.1 = [4 x i8] c" %s\00"
@stdout = global i32 0
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 (...) @say_anonymous_hello()
br label %18
6: ; preds = %2
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
%8 = zext i32 %0 to i64
br label %11
9: ; preds = %11
%10 = tail call i32 @putchar(i8 signext 10)
br label %18
11: ; preds = %6, %11
%12 = phi i64 [ 1, %6 ], [ %16, %11 ]
%13 = getelementptr inbounds i8*, i8** %1, i64 %12
%14 = load i8*, i8** %13
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %14)
%16 = add nuw nsw i64 %12, 1
%17 = icmp eq i64 %16, %8
br i1 %17, label %9, label %11
18: ; preds = %9, %4
%19 = load i32, i32* @stdout
%20 = tail call i32 @fflush(i32 %19)
ret i32 0
}