#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 O_CREAT;
int O_RDWR;
int O_TRUNC;
double acos(double);
int /*<<< orphan*/ close(int);
int open(char *, int, int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ write(int, double *, int);
int create_Result_file(void) {
  int i, nbVal;
  double tabRacos[20000], Inc;
  char *F_name;
  int fp;
  F_name = "racos";
  nbVal = 20000;
  Inc = 2 / nbVal;
  for (i = 0; i < nbVal; i++)
    tabRacos[i] = acos((Inc * i) - 1);
  fp = open(F_name, O_RDWR | O_CREAT | O_TRUNC, 0777);
  if (!fp) {
    printf("error opening file");
    close(fp);
    return -1;
  } else {
    for (i = 0; i < nbVal; i++) {
      write(fp, &tabRacos[i], sizeof(double));
    }
    close(fp);
    return 0;
  }
}


x86 assembly (clang, -O0):
<create_Result_file>:
push   %rbp
mov    %rsp,%rbp
sub    $0x27130,%rsp
lea    0xea6(%rip),%rax
mov    %rax,-0x27120(%rbp)
movl   $0x4e20,-0xc(%rbp)
mov    $0x2,%eax
cltd
idivl  -0xc(%rbp)
cvtsi2sd %eax,%xmm0
movsd  %xmm0,-0x27118(%rbp)
ff
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    11d5 <create_Result_file+0x85>
movsd  -0x27118(%rbp),%xmm0
ff
cvtsi2sdl -0x8(%rbp),%xmm1
mulsd  %xmm1,%xmm0
movsd  0xe4f(%rip),%xmm1
addsd  %xmm1,%xmm0
call   1050 <acos@plt>
movslq -0x8(%rbp),%rax
movsd  %xmm0,-0x27110(%rbp,%rax,8)
fd ff
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    118c <create_Result_file+0x3c>
mov    -0x27120(%rbp),%rdi
mov    0x2df5(%rip),%rax
mov    (%rax),%esi
mov    0x2e0c(%rip),%rax
or     (%rax),%esi
mov    0x2dfb(%rip),%rax
or     (%rax),%esi
mov    $0x1ff,%edx
call   1070 <open@plt>
mov    %eax,-0x27124(%rbp)
cmpl   $0x0,-0x27124(%rbp)
jne    1237 <create_Result_file+0xe7>
lea    0xdf3(%rip),%rdi
call   1040 <printf@plt>
mov    -0x27124(%rbp),%edi
call   1060 <close@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    128c <create_Result_file+0x13c>
movl   $0x0,-0x8(%rbp)
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    127a <create_Result_file+0x12a>
mov    -0x27124(%rbp),%edi
movslq -0x8(%rbp),%rax
lea    -0x27110(%rbp),%rsi
shl    $0x3,%rax
add    %rax,%rsi
mov    $0x8,%edx
call   1030 <write@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    123e <create_Result_file+0xee>
mov    -0x27124(%rbp),%edi
call   1060 <close@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x27130,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<create_Result_file>:
push   %rbp
push   %r14
push   %rbx
sub    $0x27100,%rsp
xor    %ebx,%ebx
nopl   (%rax)
xorps  %xmm0,%xmm0
cvtsi2sd %ebx,%xmm0
mulsd  0xe99(%rip),%xmm0
addsd  0xe89(%rip),%xmm0
call   1050 <acos@plt>
movsd  %xmm0,(%rsp,%rbx,8)
add    $0x1,%rbx
cmp    $0x4e20,%rbx
jne    1160 <create_Result_file+0x10>
mov    0x2e43(%rip),%rax
mov    0x2e5c(%rip),%rcx
mov    (%rcx),%esi
or     (%rax),%esi
mov    0x2e49(%rip),%rax
or     (%rax),%esi
lea    0xe60(%rip),%rdi
mov    $0x1ff,%edx
call   1070 <open@plt>
test   %eax,%eax
je     11ef <create_Result_file+0x9f>
mov    %eax,%ebp
xor    %r14d,%r14d
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nop
lea    (%rsp,%rbx,1),%rsi
mov    %ebp,%edi
mov    $0x8,%edx
call   1030 <write@plt>
add    $0x8,%rbx
cmp    $0x27100,%rbx
jne    11d0 <create_Result_file+0x80>
jmp    1203 <create_Result_file+0xb3>
lea    0xe20(%rip),%rdi
call   1040 <printf@plt>
mov    $0xffffffff,%r14d
xor    %ebp,%ebp
mov    %ebp,%edi
call   1060 <close@plt>
mov    %r14d,%eax
add    $0x27100,%rsp
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
@.str = [6 x i8] c"racos\00"
@O_RDWR = global i32 0
@O_CREAT = global i32 0
@O_TRUNC = global i32 0
@.str.1 = [19 x i8] c"error opening file\00"
define i32 @create_Result_file() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca [20000 x double]
%5 = alloca double
%6 = alloca i8*
%7 = alloca i32
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8** %6
store i32 20000, i32* %3
%8 = load i32, i32* %3
%9 = sdiv i32 2, %8
%10 = sitofp i32 %9 to double
store double %10, double* %5
store i32 0, i32* %2
br label %11
11: ; preds = %24, %0
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %27
15: ; preds = %11
%16 = load double, double* %5
%17 = load i32, i32* %2
%18 = sitofp i32 %17 to double
%19 = call double @llvm.fmuladd.f64(double %16, double %18, double -1.000000e+00)
%20 = call double @acos(double %19)
%21 = load i32, i32* %2
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds [20000 x double], [20000 x double]* %4, i64 0, i64 %22
store double %20, double* %23
br label %24
24: ; preds = %15
%25 = load i32, i32* %2
%26 = add nsw i32 %25, 1
store i32 %26, i32* %2
br label %11
27: ; preds = %11
%28 = load i8*, i8** %6
%29 = load i32, i32* @O_RDWR
%30 = load i32, i32* @O_CREAT
%31 = or i32 %29, %30
%32 = load i32, i32* @O_TRUNC
%33 = or i32 %31, %32
%34 = call i32 @open(i8* %28, i32 %33, i32 511)
store i32 %34, i32* %7
%35 = load i32, i32* %7
%36 = icmp ne i32 %35, 0
br i1 %36, label %41, label %37
37: ; preds = %27
%38 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0))
%39 = load i32, i32* %7
%40 = call i32 @close(i32 %39)
store i32 -1, i32* %1
br label %58
41: ; preds = %27
store i32 0, i32* %2
br label %42
42: ; preds = %52, %41
%43 = load i32, i32* %2
%44 = load i32, i32* %3
%45 = icmp slt i32 %43, %44
br i1 %45, label %46, label %55
46: ; preds = %42
%47 = load i32, i32* %7
%48 = load i32, i32* %2
%49 = sext i32 %48 to i64
%50 = getelementptr inbounds [20000 x double], [20000 x double]* %4, i64 0, i64 %49
%51 = call i32 @write(i32 %47, double* %50, i32 8)
br label %52
52: ; preds = %46
%53 = load i32, i32* %2
%54 = add nsw i32 %53, 1
store i32 %54, i32* %2
br label %42
55: ; preds = %42
%56 = load i32, i32* %7
%57 = call i32 @close(i32 %56)
store i32 0, i32* %1
br label %58
58: ; preds = %55, %37
%59 = load i32, i32* %1
ret i32 %59
}

LLVM IR (-O2):
@.str = [6 x i8] c"racos\00"
@O_RDWR = global i32 0
@O_CREAT = global i32 0
@O_TRUNC = global i32 0
@.str.1 = [19 x i8] c"error opening file\00"
define i32 @create_Result_file() {
%1 = alloca [20000 x double]
%2 = bitcast [20000 x double]* %1 to i8*
br label %3
3: ; preds = %0, %3
%4 = phi i64 [ 0, %0 ], [ %10, %3 ]
%5 = trunc i64 %4 to i32
%6 = sitofp i32 %5 to double
%7 = tail call double @llvm.fmuladd.f64(double %6, double 0.000000e+00, double -1.000000e+00)
%8 = tail call double @acos(double %7)
%9 = getelementptr inbounds [20000 x double], [20000 x double]* %1, i64 0, i64 %4
store double %8, double* %9
%10 = add nuw nsw i64 %4, 1
%11 = icmp eq i64 %10, 20000
br i1 %11, label %12, label %3
12: ; preds = %3
%13 = load i32, i32* @O_RDWR
%14 = load i32, i32* @O_CREAT
%15 = or i32 %14, %13
%16 = load i32, i32* @O_TRUNC
%17 = or i32 %15, %16
%18 = tail call i32 @open(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %17, i32 511)
%19 = icmp eq i32 %18, 0
br i1 %19, label %20, label %22
20: ; preds = %12
%21 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0))
br label %28
22: ; preds = %12, %22
%23 = phi i64 [ %26, %22 ], [ 0, %12 ]
%24 = getelementptr inbounds [20000 x double], [20000 x double]* %1, i64 0, i64 %23
%25 = call i32 @write(i32 %18, double* %24, i32 8)
%26 = add nuw nsw i64 %23, 1
%27 = icmp eq i64 %26, 20000
br i1 %27, label %28, label %22
28: ; preds = %22, %20
%29 = phi i32 [ 0, %20 ], [ %18, %22 ]
%30 = phi i32 [ -1, %20 ], [ 0, %22 ]
%31 = tail call i32 @close(i32 %29)
ret i32 %30
}