#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 /*<<< orphan*/ puts(char *);
int main(int argc, char *argv[]) {
  int i = 0;
  for (i = 1; i < argc; i++) {
    printf("%d:", i);
    puts(argv[i]);
    printf("\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)
movl   $0x0,-0x14(%rbp)
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    118e <main+0x6e>
mov    -0x14(%rbp),%esi
lea    0xea6(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1030 <puts@plt>
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1144 <main+0x24>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
cmp    $0x2,%edi
jl     1178 <main+0x48>
mov    %rsi,%r14
mov    %edi,%r12d
mov    $0x1,%ebx
lea    0xeb1(%rip),%r15
nop
mov    %r15,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    (%r14,%rbx,8),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1150 <main+0x20>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d:\00"
@.str.1 = [2 x i8] c"\0A\00"
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
store i32 0, i32* %6
store i32 1, i32* %6
br label %7
7: ; preds = %21, %2
%8 = load i32, i32* %6
%9 = load i32, i32* %4
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %24
11: ; preds = %7
%12 = load i32, i32* %6
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %12)
%14 = load i8**, i8*** %5
%15 = load i32, i32* %6
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds i8*, i8** %14, i64 %16
%18 = load i8*, i8** %17
%19 = call i32 @puts(i8* %18)
%20 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %21
21: ; preds = %11
%22 = load i32, i32* %6
%23 = add nsw i32 %22, 1
store i32 %23, i32* %6
br label %7
24: ; preds = %7
ret i32 0
}

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