#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 */
typedef double GLfloat;

/* Variables and functions */
int /*<<< orphan*/ GL_MODELVIEW;
int /*<<< orphan*/ GL_PROJECTION;
int /*<<< orphan*/ glFrustum(double, double, double, double, double, double);
int /*<<< orphan*/ glLoadIdentity();
int /*<<< orphan*/ glMatrixMode(int /*<<< orphan*/);
int /*<<< orphan*/ glViewport(int /*<<< orphan*/, int /*<<< orphan*/, int, int);
void myReshape(int w, int h) {
  glViewport(0, 0, w, h);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  if (w <= h)
    glFrustum(-2.0, 2.0, -2.0 * (GLfloat)h / (GLfloat)w,
              2.0 * (GLfloat)h / (GLfloat)w, 2.0, 20.0);
  else
    glFrustum(-2.0, 2.0, -2.0 * (GLfloat)w / (GLfloat)h,
              2.0 * (GLfloat)w / (GLfloat)h, 2.0, 20.0);
  glMatrixMode(GL_MODELVIEW);
}


x86 assembly (clang, -O0):
<myReshape>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
mov    -0x4(%rbp),%edx
mov    -0x8(%rbp),%ecx
xor    %esi,%esi
mov    %esi,%edi
call   1060 <glViewport@plt>
mov    0x2e74(%rip),%rax
mov    (%rax),%edi
call   1030 <glMatrixMode@plt>
mov    $0x0,%al
call   1040 <glLoadIdentity@plt>
mov    -0x4(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     11d7 <myReshape+0x97>
cvtsi2sdl -0x8(%rbp),%xmm0
movsd  0xe75(%rip),%xmm2
mulsd  %xmm0,%xmm2
cvtsi2sdl -0x4(%rbp),%xmm0
divsd  %xmm0,%xmm2
cvtsi2sdl -0x8(%rbp),%xmm0
movsd  0xe63(%rip),%xmm3
mulsd  %xmm0,%xmm3
cvtsi2sdl -0x4(%rbp),%xmm0
divsd  %xmm0,%xmm3
movsd  0xe46(%rip),%xmm0
movsd  0xe46(%rip),%xmm4
movsd  0xe46(%rip),%xmm5
movaps %xmm4,%xmm1
call   1050 <glFrustum@plt>
jmp    122b <myReshape+0xeb>
cvtsi2sdl -0x4(%rbp),%xmm0
movsd  0xe1c(%rip),%xmm2
mulsd  %xmm0,%xmm2
cvtsi2sdl -0x8(%rbp),%xmm0
divsd  %xmm0,%xmm2
cvtsi2sdl -0x4(%rbp),%xmm0
movsd  0xe0a(%rip),%xmm3
mulsd  %xmm0,%xmm3
cvtsi2sdl -0x8(%rbp),%xmm0
divsd  %xmm0,%xmm3
movsd  0xded(%rip),%xmm0
movsd  0xded(%rip),%xmm4
movsd  0xded(%rip),%xmm5
movaps %xmm4,%xmm1
call   1050 <glFrustum@plt>
mov    0x2db6(%rip),%rax
mov    (%rax),%edi
call   1030 <glMatrixMode@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<myReshape>:
push   %rbp
push   %rbx
push   %rax
mov    %esi,%ebx
mov    %edi,%ebp
xor    %edi,%edi
xor    %esi,%esi
mov    %ebp,%edx
mov    %ebx,%ecx
call   1060 <glViewport@plt>
mov    0x2e7d(%rip),%rax
mov    (%rax),%edi
call   1030 <glMatrixMode@plt>
xor    %eax,%eax
call   1040 <glLoadIdentity@plt>
cmp    %ebx,%ebp
jle    1183 <myReshape+0x43>
cvtsi2sd %ebp,%xmm3
movsd  0xe87(%rip),%xmm2
mulsd  %xmm3,%xmm2
cvtsi2sd %ebx,%xmm0
jmp    1197 <myReshape+0x57>
cvtsi2sd %ebx,%xmm3
movsd  0xe71(%rip),%xmm2
mulsd  %xmm3,%xmm2
cvtsi2sd %ebp,%xmm0
divsd  %xmm0,%xmm2
addsd  %xmm3,%xmm3
divsd  %xmm0,%xmm3
movsd  0xe55(%rip),%xmm0
movsd  0xe55(%rip),%xmm1
movsd  0xe55(%rip),%xmm5
movaps %xmm1,%xmm4
call   1050 <glFrustum@plt>
mov    0x2e1e(%rip),%rax
mov    (%rax),%edi
add    $0x8,%rsp
pop    %rbx
pop    %rbp
jmp    1030 <glMatrixMode@plt>

LLVM IR (-O0):
@GL_PROJECTION = global i32 0
@GL_MODELVIEW = global i32 0
define void @myReshape(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
store i32 %0, i32* %3
store i32 %1, i32* %4
%5 = load i32, i32* %3
%6 = load i32, i32* %4
%7 = call i32 @glViewport(i32 0, i32 0, i32 %5, i32 %6)
%8 = load i32, i32* @GL_PROJECTION
%9 = call i32 @glMatrixMode(i32 %8)
%10 = call i32 (...) @glLoadIdentity()
%11 = load i32, i32* %3
%12 = load i32, i32* %4
%13 = icmp sle i32 %11, %12
br i1 %13, label %14, label %28
14: ; preds = %2
%15 = load i32, i32* %4
%16 = sitofp i32 %15 to double
%17 = fmul double -2.000000e+00, %16
%18 = load i32, i32* %3
%19 = sitofp i32 %18 to double
%20 = fdiv double %17, %19
%21 = load i32, i32* %4
%22 = sitofp i32 %21 to double
%23 = fmul double 2.000000e+00, %22
%24 = load i32, i32* %3
%25 = sitofp i32 %24 to double
%26 = fdiv double %23, %25
%27 = call i32 @glFrustum(double -2.000000e+00, double 2.000000e+00, double %20, double %26, double 2.000000e+00, double 2.000000e+01)
br label %42
28: ; preds = %2
%29 = load i32, i32* %3
%30 = sitofp i32 %29 to double
%31 = fmul double -2.000000e+00, %30
%32 = load i32, i32* %4
%33 = sitofp i32 %32 to double
%34 = fdiv double %31, %33
%35 = load i32, i32* %3
%36 = sitofp i32 %35 to double
%37 = fmul double 2.000000e+00, %36
%38 = load i32, i32* %4
%39 = sitofp i32 %38 to double
%40 = fdiv double %37, %39
%41 = call i32 @glFrustum(double -2.000000e+00, double 2.000000e+00, double %34, double %40, double 2.000000e+00, double 2.000000e+01)
br label %42
42: ; preds = %28, %14
%43 = load i32, i32* @GL_MODELVIEW
%44 = call i32 @glMatrixMode(i32 %43)
ret void
}

LLVM IR (-O2):
@GL_PROJECTION = global i32 0
@GL_MODELVIEW = global i32 0
define void @myReshape(i32 %0, i32 %1) {
%3 = tail call i32 @glViewport(i32 0, i32 0, i32 %0, i32 %1)
%4 = load i32, i32* @GL_PROJECTION
%5 = tail call i32 @glMatrixMode(i32 %4)
%6 = tail call i32 (...) @glLoadIdentity()
%7 = icmp sgt i32 %0, %1
br i1 %7, label %13, label %8
8: ; preds = %2
%9 = sitofp i32 %1 to double
%10 = fmul double %9, -2.000000e+00
%11 = sitofp i32 %0 to double
%12 = fdiv double %10, %11
br label %18
13: ; preds = %2
%14 = sitofp i32 %0 to double
%15 = fmul double %14, -2.000000e+00
%16 = sitofp i32 %1 to double
%17 = fdiv double %15, %16
br label %18
18: ; preds = %13, %8
%19 = phi double [ %14, %13 ], [ %9, %8 ]
%20 = phi double [ %16, %13 ], [ %11, %8 ]
%21 = phi double [ %17, %13 ], [ %12, %8 ]
%22 = fmul double %19, 2.000000e+00
%23 = fdiv double %22, %20
%24 = tail call i32 @glFrustum(double -2.000000e+00, double 2.000000e+00, double %21, double %23, double 2.000000e+00, double 2.000000e+01)
%25 = load i32, i32* @GL_MODELVIEW
%26 = tail call i32 @glMatrixMode(i32 %25)
ret void
}