#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 *, ...);
void t_mat4_print(float *M) {
  for (unsigned row = 0; row < 4; ++row) {
    for (unsigned col = 0; col < 4; ++col)
      printf("%f ", M[4 * col + row]);
    printf("\n");
  }
}


x86 assembly (clang, -O0):
<t_mat4_print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0x4,-0xc(%rbp)
jae    118e <t_mat4_print+0x7e>
movl   $0x0,-0x10(%rbp)
cmpl   $0x4,-0x10(%rbp)
jae    1172 <t_mat4_print+0x62>
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
shl    $0x2,%ecx
add    -0xc(%rbp),%ecx
mov    %ecx,%ecx
movss  (%rax,%rcx,4),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea3(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <t_mat4_print+0x24>
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1123 <t_mat4_print+0x13>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<t_mat4_print>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
movss  (%rdi),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xeca(%rip),%r14
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x10(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x20(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x30(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
movss  0x4(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x14(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x24(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x34(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
movss  0x8(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x18(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x28(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x38(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
movss  0xc(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x1c(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x2c(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movss  0x3c(%rbx),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [4 x i8] c"%f \00"
@.str.1 = [2 x i8] c"\0A\00"
define void @t_mat4_print(float* %0) {
%2 = alloca float*
%3 = alloca i32
%4 = alloca i32
store float* %0, float** %2
store i32 0, i32* %3
br label %5
5: ; preds = %28, %1
%6 = load i32, i32* %3
%7 = icmp ult i32 %6, 4
br i1 %7, label %8, label %31
8: ; preds = %5
store i32 0, i32* %4
br label %9
9: ; preds = %23, %8
%10 = load i32, i32* %4
%11 = icmp ult i32 %10, 4
br i1 %11, label %12, label %26
12: ; preds = %9
%13 = load float*, float** %2
%14 = load i32, i32* %4
%15 = mul i32 4, %14
%16 = load i32, i32* %3
%17 = add i32 %15, %16
%18 = zext i32 %17 to i64
%19 = getelementptr inbounds float, float* %13, i64 %18
%20 = load float, float* %19
%21 = fpext float %20 to double
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %21)
br label %23
23: ; preds = %12
%24 = load i32, i32* %4
%25 = add i32 %24, 1
store i32 %25, i32* %4
br label %9
26: ; preds = %9
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %28
28: ; preds = %26
%29 = load i32, i32* %3
%30 = add i32 %29, 1
store i32 %30, i32* %3
br label %5
31: ; preds = %5
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"%f \00"
define void @t_mat4_print(float* nocapture %0) {
%2 = load float, float* %0
%3 = fpext float %2 to double
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %3)
%5 = getelementptr inbounds float, float* %0, i64 4
%6 = load float, float* %5
%7 = fpext float %6 to double
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %7)
%9 = getelementptr inbounds float, float* %0, i64 8
%10 = load float, float* %9
%11 = fpext float %10 to double
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %11)
%13 = getelementptr inbounds float, float* %0, i64 12
%14 = load float, float* %13
%15 = fpext float %14 to double
%16 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %15)
%17 = tail call i32 @putchar(i32 10)
%18 = getelementptr inbounds float, float* %0, i64 1
%19 = load float, float* %18
%20 = fpext float %19 to double
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %20)
%22 = getelementptr inbounds float, float* %0, i64 5
%23 = load float, float* %22
%24 = fpext float %23 to double
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %24)
%26 = getelementptr inbounds float, float* %0, i64 9
%27 = load float, float* %26
%28 = fpext float %27 to double
%29 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %28)
%30 = getelementptr inbounds float, float* %0, i64 13
%31 = load float, float* %30
%32 = fpext float %31 to double
%33 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %32)
%34 = tail call i32 @putchar(i32 10)
%35 = getelementptr inbounds float, float* %0, i64 2
%36 = load float, float* %35
%37 = fpext float %36 to double
%38 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %37)
%39 = getelementptr inbounds float, float* %0, i64 6
%40 = load float, float* %39
%41 = fpext float %40 to double
%42 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %41)
%43 = getelementptr inbounds float, float* %0, i64 10
%44 = load float, float* %43
%45 = fpext float %44 to double
%46 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %45)
%47 = getelementptr inbounds float, float* %0, i64 14
%48 = load float, float* %47
%49 = fpext float %48 to double
%50 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %49)
%51 = tail call i32 @putchar(i32 10)
%52 = getelementptr inbounds float, float* %0, i64 3
%53 = load float, float* %52
%54 = fpext float %53 to double
%55 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %54)
%56 = getelementptr inbounds float, float* %0, i64 7
%57 = load float, float* %56
%58 = fpext float %57 to double
%59 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %58)
%60 = getelementptr inbounds float, float* %0, i64 11
%61 = load float, float* %60
%62 = fpext float %61 to double
%63 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %62)
%64 = getelementptr inbounds float, float* %0, i64 15
%65 = load float, float* %64
%66 = fpext float %65 to double
%67 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %66)
%68 = tail call i32 @putchar(i32 10)
ret void
}