#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 */
typedef int /*<<< orphan*/ uint8_t;
typedef int /*<<< orphan*/ uint32_t;

/* Variables and functions */
int /*<<< orphan*/ libcperciva_be32dec(int /*<<< orphan*/ const *);
void be32dec_vect(uint32_t *dst, const uint8_t *src, size_t len) {
  size_t i;
  for (i = 0; i < len / 4; i++)
    dst[i] = libcperciva_be32dec(src + i * 4);
}


x86 assembly (clang, -O0):
<be32dec_vect>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
movq   $0x0,-0x20(%rbp)
mov    -0x20(%rbp),%rax
mov    -0x18(%rbp),%rcx
shr    $0x2,%rcx
cmp    %rcx,%rax
jae    1177 <be32dec_vect+0x67>
mov    -0x10(%rbp),%rdi
mov    -0x20(%rbp),%rax
shl    $0x2,%rax
shl    $0x2,%rax
add    %rax,%rdi
call   1030 <libcperciva_be32dec@plt>
mov    %eax,%edx
mov    -0x8(%rbp),%rax
mov    -0x20(%rbp),%rcx
mov    %edx,(%rax,%rcx,4)
mov    -0x20(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x20(%rbp)
jmp    112c <be32dec_vect+0x1c>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<be32dec_vect>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
cmp    $0x4,%rdx
jb     1149 <be32dec_vect+0x39>
mov    %rdx,%r14
mov    %rsi,%r12
mov    %rdi,%r15
shr    $0x2,%r14
xor    %ebx,%ebx
nopl   (%rax)
mov    %r12,%rdi
call   1030 <libcperciva_be32dec@plt>
mov    %eax,(%r15,%rbx,4)
add    $0x1,%rbx
add    $0x10,%r12
cmp    %rbx,%r14
jne    1130 <be32dec_vect+0x20>
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
define void @be32dec_vect(i32* %0, i32* %1, i64 %2) {
%4 = alloca i32*
%5 = alloca i32*
%6 = alloca i64
%7 = alloca i64
store i32* %0, i32** %4
store i32* %1, i32** %5
store i64 %2, i64* %6
store i64 0, i64* %7
br label %8
8: ; preds = %22, %3
%9 = load i64, i64* %7
%10 = load i64, i64* %6
%11 = udiv i64 %10, 4
%12 = icmp ult i64 %9, %11
br i1 %12, label %13, label %25
13: ; preds = %8
%14 = load i32*, i32** %5
%15 = load i64, i64* %7
%16 = mul i64 %15, 4
%17 = getelementptr inbounds i32, i32* %14, i64 %16
%18 = call i32 @libcperciva_be32dec(i32* %17)
%19 = load i32*, i32** %4
%20 = load i64, i64* %7
%21 = getelementptr inbounds i32, i32* %19, i64 %20
store i32 %18, i32* %21
br label %22
22: ; preds = %13
%23 = load i64, i64* %7
%24 = add i64 %23, 1
store i64 %24, i64* %7
br label %8
25: ; preds = %8
ret void
}

LLVM IR (-O2):
define void @be32dec_vect(i32* nocapture writeonly %0, i32* %1, i64 %2) {
%4 = icmp ult i64 %2, 4
br i1 %4, label %15, label %5
5: ; preds = %3
%6 = lshr i64 %2, 2
br label %7
7: ; preds = %5, %7
%8 = phi i64 [ %13, %7 ], [ 0, %5 ]
%9 = shl i64 %8, 2
%10 = getelementptr inbounds i32, i32* %1, i64 %9
%11 = tail call i32 @libcperciva_be32dec(i32* %10)
%12 = getelementptr inbounds i32, i32* %0, i64 %8
store i32 %11, i32* %12
%13 = add nuw nsw i64 %8, 1
%14 = icmp eq i64 %13, %6
br i1 %14, label %15, label %7
15: ; preds = %7, %3
ret void
}