#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*/ printf(char *, float, float, float, float, float);
int /*<<< orphan*/ scanf(char *, float *, float *);
int main() {
  float a, b, area;
  scanf("%f %f", &a, &b);
  area = .5 * a * b;
  if (area > 0)
    printf("The area of (%.4f,%.4f),(%.4f,0) and (0,%.4f) is %.4f.", a, b, a, b,
           area);
  else
    printf("The area of (%.4f,%.4f),(%.4f,0) and (0,%.4f) is %.4f.", a, b, a, b,
           -area);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xed2(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
cvtss2sd %xmm0,%xmm1
movsd  0xeac(%rip),%xmm0
mulsd  %xmm1,%xmm0
movss  -0xc(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
mulsd  %xmm1,%xmm0
cvtsd2ss %xmm0,%xmm0
movss  %xmm0,-0x10(%rbp)
movss  -0x10(%rbp),%xmm0
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jbe    11a9 <main+0x89>
movss  -0x8(%rbp),%xmm0
movss  -0xc(%rbp),%xmm1
movss  -0x8(%rbp),%xmm2
movss  -0xc(%rbp),%xmm3
movss  -0x10(%rbp),%xmm4
lea    0xe6f(%rip),%rdi
call   1030 <printf@plt>
jmp    11db <main+0xbb>
movss  -0x8(%rbp),%xmm0
movss  -0xc(%rbp),%xmm1
movss  -0x8(%rbp),%xmm2
movss  -0xc(%rbp),%xmm3
movss  -0x10(%rbp),%xmm4
movd   %xmm4,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm4
lea    0xe38(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xef8(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1040 <scanf@plt>
movss  0x4(%rsp),%xmm0
cvtss2sd %xmm0,%xmm2
mulsd  0xeb9(%rip),%xmm2
movss  (%rsp),%xmm1
cvtss2sd %xmm1,%xmm3
mulsd  %xmm2,%xmm3
xorps  %xmm2,%xmm2
cvtsd2ss %xmm3,%xmm2
movaps 0xeae(%rip),%xmm3
xorps  %xmm2,%xmm3
xorps  %xmm4,%xmm4
cmpltss %xmm2,%xmm4
andps  %xmm4,%xmm2
andnps %xmm3,%xmm4
orps   %xmm2,%xmm4
lea    0xea9(%rip),%rdi
movaps %xmm0,%xmm2
movaps %xmm1,%xmm3
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"%f %f\00"
@.str.1 = [55 x i8] c"The area of (%.4f,%.4f),(%.4f,0) and (0,%.4f) is %.4f.\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), float* %2, float* %3)
%6 = load float, float* %2
%7 = fpext float %6 to double
%8 = fmul double 5.000000e-01, %7
%9 = load float, float* %3
%10 = fpext float %9 to double
%11 = fmul double %8, %10
%12 = fptrunc double %11 to float
store float %12, float* %4
%13 = load float, float* %4
%14 = fcmp ogt float %13, 0.000000e+00
br i1 %14, label %15, label %22
15: ; preds = %0
%16 = load float, float* %2
%17 = load float, float* %3
%18 = load float, float* %2
%19 = load float, float* %3
%20 = load float, float* %4
%21 = call i32 @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str.1, i64 0, i64 0), float %16, float %17, float %18, float %19, float %20)
br label %30
22: ; preds = %0
%23 = load float, float* %2
%24 = load float, float* %3
%25 = load float, float* %2
%26 = load float, float* %3
%27 = load float, float* %4
%28 = fneg float %27
%29 = call i32 @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str.1, i64 0, i64 0), float %23, float %24, float %25, float %26, float %28)
br label %30
30: ; preds = %22, %15
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"%f %f\00"
@.str.1 = [55 x i8] c"The area of (%.4f,%.4f),(%.4f,0) and (0,%.4f) is %.4f.\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = bitcast float* %1 to i8*
%4 = bitcast float* %2 to i8*
%5 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), float* %1, float* %2)
%6 = load float, float* %1
%7 = fpext float %6 to double
%8 = fmul double %7, 5.000000e-01
%9 = load float, float* %2
%10 = fpext float %9 to double
%11 = fmul double %8, %10
%12 = fptrunc double %11 to float
%13 = fcmp ogt float %12, 0.000000e+00
%14 = fneg float %12
%15 = select i1 %13, float %12, float %14
%16 = call i32 @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str.1, i64 0, i64 0), float %6, float %9, float %6, float %9, float %15)
ret i32 0
}