#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 */
double diffofarr(double *, int);
int /*<<< orphan*/ printf(char *, double);
int main(void) {
  double ar[5] = {32.4, 45.7, 12.1, 73.5, 50.9};
  printf("diff: %g\n", diffofarr(ar, 5));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x30(%rbp),%rdi
xor    %esi,%esi
mov    $0x28,%edx
call   1040 <memset@plt>
movsd  0xec9(%rip),%xmm0
movsd  %xmm0,-0x30(%rbp)
movsd  0xeb4(%rip),%xmm0
movsd  %xmm0,-0x28(%rbp)
movsd  0xe9f(%rip),%xmm0
movsd  %xmm0,-0x20(%rbp)
movsd  0xe8a(%rip),%xmm0
movsd  %xmm0,-0x18(%rbp)
movsd  0xe75(%rip),%xmm0
movsd  %xmm0,-0x10(%rbp)
lea    -0x30(%rbp),%rdi
mov    $0x5,%esi
call   1050 <diffofarr@plt>
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x28,%rsp
movaps 0xed5(%rip),%xmm0
movaps %xmm0,(%rsp)
movaps 0xeda(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movabs $0x4049733333333333,%rax
73 49 40
mov    %rax,0x20(%rsp)
mov    %rsp,%rdi
mov    $0x5,%esi
call   1040 <diffofarr@plt>
lea    0xec2(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x28,%rsp
ret

LLVM IR (-O0):
@.str = [10 x i8] c"diff: %g\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [5 x double]
store i32 0, i32* %1
%3 = bitcast [5 x double]* %2 to i8*
%4 = bitcast i8* %3 to [5 x double]*
%5 = getelementptr inbounds [5 x double], [5 x double]* %4, i32 0, i32 0
store double 3.240000e+01, double* %5
%6 = getelementptr inbounds [5 x double], [5 x double]* %4, i32 0, i32 1
store double 4.570000e+01, double* %6
%7 = getelementptr inbounds [5 x double], [5 x double]* %4, i32 0, i32 2
store double 1.210000e+01, double* %7
%8 = getelementptr inbounds [5 x double], [5 x double]* %4, i32 0, i32 3
store double 7.350000e+01, double* %8
%9 = getelementptr inbounds [5 x double], [5 x double]* %4, i32 0, i32 4
store double 5.090000e+01, double* %9
%10 = getelementptr inbounds [5 x double], [5 x double]* %2, i64 0, i64 0
%11 = call double @diffofarr(double* %10, i32 5)
%12 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), double %11)
ret i32 0
}

LLVM IR (-O2):
@.str = [10 x i8] c"diff: %g\0A\00"
define i32 @main() {
%1 = alloca [5 x double]
%2 = bitcast [5 x double]* %1 to i8*
%3 = getelementptr inbounds [5 x double], [5 x double]* %1, i64 0, i64 0
%4 = bitcast [5 x double]* %1 to <2 x double>*
store <2 x double> <double 3.240000e+01, double 4.570000e+01>, <2 x double>* %4
%5 = getelementptr inbounds [5 x double], [5 x double]* %1, i64 0, i64 2
%6 = bitcast double* %5 to <2 x double>*
store <2 x double> <double 1.210000e+01, double 7.350000e+01>, <2 x double>* %6
%7 = getelementptr inbounds [5 x double], [5 x double]* %1, i64 0, i64 4
store double 5.090000e+01, double* %7
%8 = call double @diffofarr(double* %3, i32 5)
%9 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), double %8)
ret i32 0
}