#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_FAILURE;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *);
int scanf(char *, double *, double *, double *);
int /*<<< orphan*/ stderr;
void checkInput(double *A, double *B, double *C) {
  if ((scanf("%lf %lf %lf", A, B, C)) != 3) {
    fprintf(stderr, "Wrong input values!");
    exit(EXIT_FAILURE);
  }
}


x86 assembly (clang, -O0):
<checkInput>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
mov    -0x8(%rbp),%rsi
mov    -0x10(%rbp),%rdx
mov    -0x18(%rbp),%rcx
lea    0xea9(%rip),%rdi
call   1040 <scanf@plt>
cmp    $0x3,%eax
je     1188 <checkInput+0x58>
mov    0x2e74(%rip),%rax
mov    (%rax),%edi
lea    0xe97(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e57(%rip),%rax
mov    (%rax),%edi
call   1050 <exit@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<checkInput>:
push   %rax
mov    %rdx,%rcx
mov    %rsi,%rdx
mov    %rdi,%rsi
lea    0xebf(%rip),%rdi
call   1040 <scanf@plt>
cmp    $0x3,%eax
jne    114d <checkInput+0x1d>
pop    %rax
ret
mov    0x2e8c(%rip),%rax
mov    (%rax),%edi
lea    0xeaf(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e6f(%rip),%rax
mov    (%rax),%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [12 x i8] c"%lf %lf %lf\00"
@stderr = global i32 0
@.str.1 = [20 x i8] c"Wrong input values!\00"
@EXIT_FAILURE = global i32 0
define void @checkInput(double* %0, double* %1, double* %2) {
%4 = alloca double*
%5 = alloca double*
%6 = alloca double*
store double* %0, double** %4
store double* %1, double** %5
store double* %2, double** %6
%7 = load double*, double** %4
%8 = load double*, double** %5
%9 = load double*, double** %6
%10 = call i32 @scanf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), double* %7, double* %8, double* %9)
%11 = icmp ne i32 %10, 3
br i1 %11, label %12, label %17
12: ; preds = %3
%13 = load i32, i32* @stderr
%14 = call i32 @fprintf(i32 %13, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%15 = load i32, i32* @EXIT_FAILURE
%16 = call i32 @exit(i32 %15)
unreachable
17: ; preds = %3
ret void
}

LLVM IR (-O2):
@.str = [12 x i8] c"%lf %lf %lf\00"
@stderr = global i32 0
@.str.1 = [20 x i8] c"Wrong input values!\00"
@EXIT_FAILURE = global i32 0
define void @checkInput(double* %0, double* %1, double* %2) {
%4 = tail call i32 @scanf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), double* %0, double* %1, double* %2)
%5 = icmp eq i32 %4, 3
br i1 %5, label %11, label %6
6: ; preds = %3
%7 = load i32, i32* @stderr
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%9 = load i32, i32* @EXIT_FAILURE
%10 = tail call i32 @exit(i32 %9)
unreachable
11: ; preds = %3
ret void
}