#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*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *);
scalar_t__ malloc(int);
int /*<<< orphan*/ stderr;
double *allocate_double_1D(int n_X) {
  int i;
  double *array = (double *)malloc(n_X * sizeof(double));
  if (array == NULL) {
    fprintf(stderr, "PE: Memory allocation fails!\n");
    exit(1);
  }
  for (i = 0; i < n_X; i++) {
    array[i] = 0.0;
  }
  return (array);
}


x86 assembly (clang, -O0):
<allocate_double_1D>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
movslq -0x4(%rbp),%rax
shl    $0x3,%rax
mov    %eax,%edi
call   1040 <malloc@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    1178 <allocate_double_1D+0x48>
mov    0x2e80(%rip),%rax
mov    (%rax),%edi
lea    0xe97(%rip),%rsi
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0x4(%rbp),%eax
jge    11a9 <allocate_double_1D+0x79>
mov    -0x10(%rbp),%rax
movslq -0x8(%rbp),%rcx
xorps  %xmm0,%xmm0
movsd  %xmm0,(%rax,%rcx,8)
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    117f <allocate_double_1D+0x4f>
mov    -0x10(%rbp),%rax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<allocate_double_1D>:
push   %r14
push   %rbx
push   %rax
mov    %edi,%ebx
lea    0x0(,%rbx,8),%edi
call   1050 <malloc@plt>
test   %rax,%rax
je     1179 <allocate_double_1D+0x39>
mov    %rax,%r14
test   %ebx,%ebx
jle    116e <allocate_double_1D+0x2e>
mov    %ebx,%edx
shl    $0x3,%rdx
mov    %r14,%rdi
xor    %esi,%esi
call   1030 <memset@plt>
mov    %r14,%rax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret
mov    0x2e60(%rip),%rax
mov    (%rax),%edi
lea    0xe77(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%edi
call   1060 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [30 x i8] c"PE: Memory allocation fails!\0A\00"
define double* @allocate_double_1D(i32 %0) {
%2 = alloca i32
%3 = alloca i32
%4 = alloca double*
store i32 %0, i32* %2
%5 = load i32, i32* %2
%6 = sext i32 %5 to i64
%7 = mul i64 %6, 8
%8 = trunc i64 %7 to i32
%9 = call i64 @malloc(i32 %8)
%10 = inttoptr i64 %9 to double*
store double* %10, double** %4
%11 = load double*, double** %4
%12 = icmp eq double* %11, null
br i1 %12, label %13, label %17
13: ; preds = %1
%14 = load i32, i32* @stderr
%15 = call i32 @fprintf(i32 %14, i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
%16 = call i32 @exit(i32 1)
unreachable
17: ; preds = %1
store i32 0, i32* %3
br label %18
18: ; preds = %27, %17
%19 = load i32, i32* %3
%20 = load i32, i32* %2
%21 = icmp slt i32 %19, %20
br i1 %21, label %22, label %30
22: ; preds = %18
%23 = load double*, double** %4
%24 = load i32, i32* %3
%25 = sext i32 %24 to i64
%26 = getelementptr inbounds double, double* %23, i64 %25
store double 0.000000e+00, double* %26
br label %27
27: ; preds = %22
%28 = load i32, i32* %3
%29 = add nsw i32 %28, 1
store i32 %29, i32* %3
br label %18
30: ; preds = %18
%31 = load double*, double** %4
ret double* %31
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [30 x i8] c"PE: Memory allocation fails!\0A\00"
define double* @allocate_double_1D(i32 %0) {
%2 = shl i32 %0, 3
%3 = tail call i64 @malloc(i32 %2)
%4 = inttoptr i64 %3 to i8*
%5 = icmp eq i64 %3, 0
br i1 %5, label %11, label %6
6: ; preds = %1
%7 = icmp sgt i32 %0, 0
br i1 %7, label %8, label %15
8: ; preds = %6
%9 = zext i32 %0 to i64
%10 = shl nuw nsw i64 %9, 3
br label %15
11: ; preds = %1
%12 = load i32, i32* @stderr
%13 = tail call i32 @fprintf(i32 %12, i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
%14 = tail call i32 @exit(i32 1)
unreachable
15: ; preds = %8, %6
%16 = inttoptr i64 %3 to double*
ret double* %16
}