#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 */
size_t map(int, int, int, char);
int /*<<< orphan*/ printf(char *, ...);
void print_mat(double *A, int nrows, int ncols) {
  int i, j;
  for (i = 0; i < nrows; i++) {
    for (j = 0; j < ncols; j++) {
      printf("%1.5f ", A[map(i, j, ncols, 'n')]);
    }
    printf("\n");
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<print_mat>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    %edx,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    11b7 <print_mat+0x97>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x10(%rbp),%eax
jge    119b <print_mat+0x7b>
mov    -0x8(%rbp),%rax
mov    %rax,-0x20(%rbp)
mov    -0x14(%rbp),%edi
mov    -0x18(%rbp),%esi
mov    -0x10(%rbp),%edx
mov    $0x6e,%ecx
call   1040 <map@plt>
mov    %rax,%rcx
mov    -0x20(%rbp),%rax
movsd  (%rax,%rcx,8),%xmm0
lea    0xe7a(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    114c <print_mat+0x2c>
lea    0xe65(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1139 <print_mat+0x19>
lea    0xe49(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_mat>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
test   %esi,%esi
jle    11aa <print_mat+0x7a>
mov    %edx,%ebx
mov    %esi,%r14d
mov    %rdi,%r15
xor    %r13d,%r13d
lea    0xeaf(%rip),%r12
jmp    1173 <print_mat+0x43>
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%r13d
cmp    %r14d,%r13d
je     11aa <print_mat+0x7a>
test   %ebx,%ebx
jle    1160 <print_mat+0x30>
xor    %ebp,%ebp
nopl   0x0(%rax)
mov    %r13d,%edi
mov    %ebp,%esi
mov    %ebx,%edx
mov    $0x6e,%ecx
call   1050 <map@plt>
movsd  (%r15,%rax,8),%xmm0
mov    %r12,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
add    $0x1,%ebp
cmp    %ebp,%ebx
jne    1180 <print_mat+0x50>
jmp    1160 <print_mat+0x30>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [7 x i8] c"%1.5f \00"
@.str.1 = [2 x i8] c"\0A\00"
define void @print_mat(double* %0, i32 %1, i32 %2) {
%4 = alloca double*
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store double* %0, double** %4
store i32 %1, i32* %5
store i32 %2, i32* %6
store i32 0, i32* %7
br label %9
9: ; preds = %32, %3
%10 = load i32, i32* %7
%11 = load i32, i32* %5
%12 = icmp slt i32 %10, %11
br i1 %12, label %13, label %35
13: ; preds = %9
store i32 0, i32* %8
br label %14
14: ; preds = %27, %13
%15 = load i32, i32* %8
%16 = load i32, i32* %6
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %30
18: ; preds = %14
%19 = load double*, double** %4
%20 = load i32, i32* %7
%21 = load i32, i32* %8
%22 = load i32, i32* %6
%23 = call i64 @map(i32 %20, i32 %21, i32 %22, i8 signext 110)
%24 = getelementptr inbounds double, double* %19, i64 %23
%25 = load double, double* %24
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %25)
br label %27
27: ; preds = %18
%28 = load i32, i32* %8
%29 = add nsw i32 %28, 1
store i32 %29, i32* %8
br label %14
30: ; preds = %14
%31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %32
32: ; preds = %30
%33 = load i32, i32* %7
%34 = add nsw i32 %33, 1
store i32 %34, i32* %7
br label %9
35: ; preds = %9
%36 = 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"%1.5f \00"
define void @print_mat(double* nocapture %0, i32 %1, i32 %2) {
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %21
5: ; preds = %3
%6 = icmp sgt i32 %2, 0
br label %7
7: ; preds = %5, %17
%8 = phi i32 [ 0, %5 ], [ %19, %17 ]
br i1 %6, label %9, label %17
9: ; preds = %7, %9
%10 = phi i32 [ %15, %9 ], [ 0, %7 ]
%11 = tail call i64 @map(i32 %8, i32 %10, i32 %2, i8 signext 110)
%12 = getelementptr inbounds double, double* %0, i64 %11
%13 = load double, double* %12
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), double %13)
%15 = add nuw nsw i32 %10, 1
%16 = icmp eq i32 %15, %2
br i1 %16, label %17, label %9
17: ; preds = %9, %7
%18 = tail call i32 @putchar(i32 10)
%19 = add nuw nsw i32 %8, 1
%20 = icmp eq i32 %19, %1
br i1 %20, label %21, label %7
21: ; preds = %17, %3
%22 = tail call i32 @putchar(i32 10)
ret void
}