#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 print_int_vec(char *what, int n, int *vec) {
  int i;
  printf("%s\n", what);
  for (i = 0; i < n; ++i)
    printf("%d\t%d\n", i, vec[i]);
  return 0;
}


x86 assembly (clang, -O0):
<print_int_vec>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    %rdx,-0x18(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xed2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1172 <print_int_vec+0x62>
mov    -0x1c(%rbp),%esi
mov    -0x18(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,4),%edx
lea    0xea7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    113c <print_int_vec+0x2c>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_int_vec>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rdx,%r15
mov    %esi,%ebx
call   1030 <puts@plt>
test   %ebx,%ebx
jle    1169 <print_int_vec+0x49>
mov    %ebx,%r12d
lea    0xec0(%rip),%r14
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    (%r15,%rbx,4),%edx
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1150 <print_int_vec+0x30>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%s\0A\00"
@.str.1 = [7 x i8] c"%d\09%d\0A\00"
define i32 @print_int_vec(i8* %0, i32 %1, i32* %2) {
%4 = alloca i8*
%5 = alloca i32
%6 = alloca i32*
%7 = alloca i32
store i8* %0, i8** %4
store i32 %1, i32* %5
store i32* %2, i32** %6
%8 = load i8*, i8** %4
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %8)
store i32 0, i32* %7
br label %10
10: ; preds = %22, %3
%11 = load i32, i32* %7
%12 = load i32, i32* %5
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %25
14: ; preds = %10
%15 = load i32, i32* %7
%16 = load i32*, i32** %6
%17 = load i32, i32* %7
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds i32, i32* %16, i64 %18
%20 = load i32, i32* %19
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 %15, i32 %20)
br label %22
22: ; preds = %14
%23 = load i32, i32* %7
%24 = add nsw i32 %23, 1
store i32 %24, i32* %7
br label %10
25: ; preds = %10
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [7 x i8] c"%d\09%d\0A\00"
define i32 @print_int_vec(i8* nocapture %0, i32 %1, i32* nocapture %2) {
%4 = tail call i32 @puts(i8* dereferenceable(1) %0)
%5 = icmp sgt i32 %1, 0
br i1 %5, label %6, label %16
6: ; preds = %3
%7 = zext i32 %1 to i64
br label %8
8: ; preds = %6, %8
%9 = phi i64 [ 0, %6 ], [ %14, %8 ]
%10 = getelementptr inbounds i32, i32* %2, i64 %9
%11 = load i32, i32* %10
%12 = trunc i64 %9 to i32
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i32 %12, i32 %11)
%14 = add nuw nsw i64 %9, 1
%15 = icmp eq i64 %14, %7
br i1 %15, label %16, label %8
16: ; preds = %8, %3
ret i32 0
}