#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) {
  printf("Hello arguments!\n\n");
  if (argc > 0) {
    int i;
    for (i = 0; i < argc; i++)
      printf("argv[%d]: %s\n", i, argv[i]);
  }
  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)
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x0,-0x8(%rbp)
jle    1181 <main+0x71>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    117c <main+0x6c>
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rdx
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1145 <main+0x35>
jmp    1181 <main+0x71>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r15
mov    %edi,%ebx
lea    0xeda(%rip),%rdi
call   1030 <puts@plt>
test   %ebx,%ebx
jle    1169 <main+0x49>
mov    %ebx,%r12d
lea    0xeb9(%rip),%r14
xor    %ebx,%ebx
nopl   0x0(%rax)
mov    (%r15,%rbx,8),%rdx
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1150 <main+0x30>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Hello arguments!\0A\0A\00"
@.str.1 = [14 x i8] c"argv[%d]: %s\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
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%8 = load i32, i32* %4
%9 = icmp sgt i32 %8, 0
br i1 %9, label %10, label %27
10: ; preds = %2
store i32 0, i32* %6
br label %11
11: ; preds = %23, %10
%12 = load i32, i32* %6
%13 = load i32, i32* %4
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %26
15: ; preds = %11
%16 = load i32, i32* %6
%17 = load i8**, i8*** %5
%18 = load i32, i32* %6
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i8*, i8** %17, i64 %19
%21 = load i8*, i8** %20
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %16, i8* %21)
br label %23
23: ; preds = %15
%24 = load i32, i32* %6
%25 = add nsw i32 %24, 1
store i32 %25, i32* %6
br label %11
26: ; preds = %11
br label %27
27: ; preds = %26, %2
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [14 x i8] c"argv[%d]: %s\0A\00"
@str = [18 x i8] c"Hello arguments!\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
%4 = icmp sgt i32 %0, 0
br i1 %4, label %5, label %15
5: ; preds = %2
%6 = zext i32 %0 to i64
br label %7
7: ; preds = %5, %7
%8 = phi i64 [ 0, %5 ], [ %13, %7 ]
%9 = getelementptr inbounds i8*, i8** %1, i64 %8
%10 = load i8*, i8** %9
%11 = trunc i64 %8 to i32
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %11, i8* %10)
%13 = add nuw nsw i64 %8, 1
%14 = icmp eq i64 %13, %6
br i1 %14, label %15, label %7
15: ; preds = %7, %2
ret i32 0
}