#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 print_matrix(double matrix[64]) {
  int i, j;
  for (i = 0; i < 8; i++) {
    for (j = 0; j < 8; j++) {
      printf("%.12e ", matrix[8 * i + j]);
    }
    printf("\n");
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<print_matrix>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0x8,-0xc(%rbp)
jge    118b <print_matrix+0x7b>
movl   $0x0,-0x10(%rbp)
cmpl   $0x8,-0x10(%rbp)
jge    116f <print_matrix+0x5f>
mov    -0x8(%rbp),%rax
mov    -0xc(%rbp),%ecx
shl    $0x3,%ecx
add    -0x10(%rbp),%ecx
movslq %ecx,%rcx
movsd  (%rax,%rcx,8),%xmm0
lea    0xea6(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <print_matrix+0x24>
lea    0xe91(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1123 <print_matrix+0x13>
lea    0xe75(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_matrix>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%r15
xor    %ebx,%ebx
lea    0xecf(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
movsd  (%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x8(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x10(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x18(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x20(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x28(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x30(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
movsd  0x38(%r15,%rbx,1),%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x40,%rbx
cmp    $0x200,%rbx
jne    1140 <print_matrix+0x20>
mov    $0xa,%edi
pop    %rbx
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>

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

LLVM IR (-O2):
@.str = [7 x i8] c"%.12e \00"
define void @print_matrix(double* nocapture %0) {
br label %2
2: ; preds = %1, %2
%3 = phi i64 [ 0, %1 ], [ %37, %2 ]
%4 = shl nsw i64 %3, 3
%5 = getelementptr inbounds double, double* %0, i64 %4
%6 = load double, double* %5
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %6)
%8 = or i64 %4, 1
%9 = getelementptr inbounds double, double* %0, i64 %8
%10 = load double, double* %9
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %10)
%12 = or i64 %4, 2
%13 = getelementptr inbounds double, double* %0, i64 %12
%14 = load double, double* %13
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %14)
%16 = or i64 %4, 3
%17 = getelementptr inbounds double, double* %0, i64 %16
%18 = load double, double* %17
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %18)
%20 = or i64 %4, 4
%21 = getelementptr inbounds double, double* %0, i64 %20
%22 = load double, double* %21
%23 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %22)
%24 = or i64 %4, 5
%25 = getelementptr inbounds double, double* %0, i64 %24
%26 = load double, double* %25
%27 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %26)
%28 = or i64 %4, 6
%29 = getelementptr inbounds double, double* %0, i64 %28
%30 = load double, double* %29
%31 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %30)
%32 = or i64 %4, 7
%33 = getelementptr inbounds double, double* %0, i64 %32
%34 = load double, double* %33
%35 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %34)
%36 = tail call i32 @putchar(i32 10)
%37 = add nuw nsw i64 %3, 1
%38 = icmp eq i64 %37, 8
br i1 %38, label %39, label %2
39: ; preds = %2
%40 = tail call i32 @putchar(i32 10)
ret void
}