#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, ...);
int iv_test(int n, int *src) {
  int i;
  unsigned int *ui;
  printf("size = %d\n", n);
  for (i = 0; i < n; i++) {
    ui = (unsigned int *)(&(src[i]));
    printf("%d: %d %X\n", i, src[i], *ui);
  }
  return -1;
}


x86 assembly (clang, -O0):
<iv_test>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x4(%rbp),%esi
lea    0xed7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x4(%rbp),%eax
jge    1186 <iv_test+0x76>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
shl    $0x2,%rcx
add    %rcx,%rax
mov    %rax,-0x20(%rbp)
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%edx
mov    -0x20(%rbp),%rax
mov    (%rax),%ecx
lea    0xe9a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1137 <iv_test+0x27>
mov    $0xffffffff,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<iv_test>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r15
mov    %edi,%ebx
lea    0xedc(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <printf@plt>
test   %ebx,%ebx
jle    115b <iv_test+0x4b>
mov    %ebx,%r12d
lea    0xed0(%rip),%r14
xor    %ebx,%ebx
nopl   (%rax)
mov    (%r15,%rbx,4),%ecx
mov    %r14,%rdi
mov    %ebx,%esi
mov    %ecx,%edx
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1140 <iv_test+0x30>
mov    $0xffffffff,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

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

LLVM IR (-O2):
@.str = [11 x i8] c"size = %d\0A\00"
@.str.1 = [11 x i8] c"%d: %d %X\0A\00"
define i32 @iv_test(i32 %0, i32* nocapture %1) {
%3 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 %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 i32, i32* %1, i64 %8
%10 = load i32, i32* %9
%11 = trunc i64 %8 to i32
%12 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %11, i32 %10, i32 %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 -1
}