#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 *, ...);
void printindexvec(int *x, int n) {
  printf("(");
  int i, m = (n < 20 ? n : 20);
  for (i = 0; i < m; ++i)
    printf("%d, ", x[i]);
  printf(")\n");
}


x86 assembly (clang, -O0):
<printindexvec>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x14,-0xc(%rbp)
jge    1142 <printindexvec+0x32>
mov    -0xc(%rbp),%eax
mov    %eax,-0x18(%rbp)
jmp    114f <printindexvec+0x3f>
mov    $0x14,%eax
mov    %eax,-0x18(%rbp)
jmp    114f <printindexvec+0x3f>
mov    -0x18(%rbp),%eax
mov    %eax,-0x14(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    118f <printindexvec+0x7f>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe88(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    115c <printindexvec+0x4c>
lea    0xe71(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<printindexvec>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %esi,%r14d
mov    %rdi,%r15
mov    $0x28,%edi
call   1030 <putchar@plt>
test   %r14d,%r14d
jle    1187 <printindexvec+0x57>
cmp    $0x14,%r14d
mov    $0x14,%ebp
cmovb  %r14d,%ebp
lea    0xea0(%rip),%r14
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    (%r15,%rbx,4),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1170 <printindexvec+0x40>
lea    0xe77(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <puts@plt>

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

LLVM IR (-O2):
@.str.1 = [5 x i8] c"%d, \00"
@str = [2 x i8] c")\00"
define void @printindexvec(i32* nocapture %0, i32 %1) {
%3 = tail call i32 @putchar(i32 40)
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %16
5: ; preds = %2
%6 = icmp ult i32 %1, 20
%7 = select i1 %6, i32 %1, i32 20
%8 = zext i32 %7 to i64
br label %9
9: ; preds = %5, %9
%10 = phi i64 [ 0, %5 ], [ %14, %9 ]
%11 = getelementptr inbounds i32, i32* %0, i64 %10
%12 = load i32, i32* %11
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %12)
%14 = add nuw nsw i64 %10, 1
%15 = icmp eq i64 %14, %8
br i1 %15, label %16, label %9
16: ; preds = %9, %2
%17 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
ret void
}