#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*/ matrixmult(float **, float **, float **);
void zshearmat(float mat[4][4], float dx, float dy) {
  float mmat[4][4];
  mmat[0][0] = 1.0;
  mmat[0][1] = 0.0;
  mmat[0][2] = dx;
  mmat[0][3] = 0.0;
  mmat[1][0] = 0.0;
  mmat[1][1] = 1.0;
  mmat[1][2] = dy;
  mmat[1][3] = 0.0;
  mmat[2][0] = 0.0;
  mmat[2][1] = 0.0;
  mmat[2][2] = 1.0;
  mmat[2][3] = 0.0;
  mmat[3][0] = 0.0;
  mmat[3][1] = 0.0;
  mmat[3][2] = 0.0;
  mmat[3][3] = 1.0;
  matrixmult(mmat, mat, mat);
}


x86 assembly (clang, -O0):
<zshearmat>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
mov    %rdi,-0x8(%rbp)
movss  %xmm0,-0xc(%rbp)
movss  %xmm1,-0x10(%rbp)
movss  0xed2(%rip),%xmm0
movss  %xmm0,-0x50(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x4c(%rbp)
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x48(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x44(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x40(%rbp)
movss  0xea3(%rip),%xmm0
movss  %xmm0,-0x3c(%rbp)
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x38(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x34(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x30(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x2c(%rbp)
movss  0xe74(%rip),%xmm0
movss  %xmm0,-0x28(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x24(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x20(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x1c(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x18(%rbp)
movss  0xe47(%rip),%xmm0
movss  %xmm0,-0x14(%rbp)
lea    -0x50(%rbp),%rdi
mov    -0x8(%rbp),%rsi
mov    -0x8(%rbp),%rdx
call   1030 <matrixmult@plt>
add    $0x50,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<zshearmat>:
sub    $0x48,%rsp
mov    %rdi,%rdx
movq   $0x3f800000,(%rsp)
3f
movss  %xmm0,0x8(%rsp)
movq   $0x0,0xc(%rsp)
movl   $0x3f800000,0x14(%rsp)
3f
movss  %xmm1,0x18(%rsp)
movaps 0xebd(%rip),%xmm0
movups %xmm0,0x1c(%rsp)
xorps  %xmm0,%xmm0
movups %xmm0,0x2c(%rsp)
movl   $0x3f800000,0x3c(%rsp)
3f
mov    %rsp,%rdi
mov    %rdx,%rsi
call   1030 <matrixmult@plt>
add    $0x48,%rsp
ret

LLVM IR (-O0):
define void @zshearmat([4 x float]* %0, float %1, float %2) {
%4 = alloca [4 x float]*
%5 = alloca float
%6 = alloca float
%7 = alloca [4 x [4 x float]]
store [4 x float]* %0, [4 x float]** %4
store float %1, float* %5
store float %2, float* %6
%8 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 0
%9 = getelementptr inbounds [4 x float], [4 x float]* %8, i64 0, i64 0
store float 1.000000e+00, float* %9
%10 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 0
%11 = getelementptr inbounds [4 x float], [4 x float]* %10, i64 0, i64 1
store float 0.000000e+00, float* %11
%12 = load float, float* %5
%13 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 0
%14 = getelementptr inbounds [4 x float], [4 x float]* %13, i64 0, i64 2
store float %12, float* %14
%15 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 0
%16 = getelementptr inbounds [4 x float], [4 x float]* %15, i64 0, i64 3
store float 0.000000e+00, float* %16
%17 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 1
%18 = getelementptr inbounds [4 x float], [4 x float]* %17, i64 0, i64 0
store float 0.000000e+00, float* %18
%19 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 1
%20 = getelementptr inbounds [4 x float], [4 x float]* %19, i64 0, i64 1
store float 1.000000e+00, float* %20
%21 = load float, float* %6
%22 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 1
%23 = getelementptr inbounds [4 x float], [4 x float]* %22, i64 0, i64 2
store float %21, float* %23
%24 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 1
%25 = getelementptr inbounds [4 x float], [4 x float]* %24, i64 0, i64 3
store float 0.000000e+00, float* %25
%26 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 2
%27 = getelementptr inbounds [4 x float], [4 x float]* %26, i64 0, i64 0
store float 0.000000e+00, float* %27
%28 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 2
%29 = getelementptr inbounds [4 x float], [4 x float]* %28, i64 0, i64 1
store float 0.000000e+00, float* %29
%30 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 2
%31 = getelementptr inbounds [4 x float], [4 x float]* %30, i64 0, i64 2
store float 1.000000e+00, float* %31
%32 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 2
%33 = getelementptr inbounds [4 x float], [4 x float]* %32, i64 0, i64 3
store float 0.000000e+00, float* %33
%34 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 3
%35 = getelementptr inbounds [4 x float], [4 x float]* %34, i64 0, i64 0
store float 0.000000e+00, float* %35
%36 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 3
%37 = getelementptr inbounds [4 x float], [4 x float]* %36, i64 0, i64 1
store float 0.000000e+00, float* %37
%38 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 3
%39 = getelementptr inbounds [4 x float], [4 x float]* %38, i64 0, i64 2
store float 0.000000e+00, float* %39
%40 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 3
%41 = getelementptr inbounds [4 x float], [4 x float]* %40, i64 0, i64 3
store float 1.000000e+00, float* %41
%42 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %7, i64 0, i64 0
%43 = bitcast [4 x float]* %42 to float**
%44 = load [4 x float]*, [4 x float]** %4
%45 = bitcast [4 x float]* %44 to float**
%46 = load [4 x float]*, [4 x float]** %4
%47 = bitcast [4 x float]* %46 to float**
%48 = call i32 @matrixmult(float** %43, float** %45, float** %47)
ret void
}

LLVM IR (-O2):
define void @zshearmat([4 x float]* %0, float %1, float %2) {
%4 = alloca [4 x [4 x float]]
%5 = bitcast [4 x [4 x float]]* %4 to i8*
%6 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 0, i64 0
store float 1.000000e+00, float* %6
%7 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 0, i64 1
store float 0.000000e+00, float* %7
%8 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 0, i64 2
store float %1, float* %8
%9 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 0, i64 3
store float 0.000000e+00, float* %9
%10 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 1, i64 0
store float 0.000000e+00, float* %10
%11 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 1, i64 1
store float 1.000000e+00, float* %11
%12 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 1, i64 2
store float %2, float* %12
%13 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 1, i64 3
%14 = bitcast float* %13 to <4 x float>*
store <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, <4 x float>* %14
%15 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 2, i64 3
%16 = getelementptr inbounds [4 x [4 x float]], [4 x [4 x float]]* %4, i64 0, i64 3, i64 3
%17 = bitcast float* %15 to i8*
store float 1.000000e+00, float* %16
%18 = bitcast [4 x [4 x float]]* %4 to float**
%19 = bitcast [4 x float]* %0 to float**
%20 = call i32 @matrixmult(float** %18, float** %19, float** %19)
ret void
}