#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 *, double);
int /*<<< orphan*/ putchar(char);
void matprinter(int m, int n, double *x) {
  int i, j;
  for (i = 0; i < m; i++) {
    for (j = 0; j < n; j++)
      printf("%f ", x[i + m * j]);
    putchar('\n');
  }
}


x86 assembly (clang, -O0):
<matprinter>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
mov    %rdx,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x4(%rbp),%eax
jge    11a2 <matprinter+0x82>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    118a <matprinter+0x6a>
mov    -0x10(%rbp),%rax
mov    -0x14(%rbp),%ecx
mov    -0x4(%rbp),%edx
imul   -0x18(%rbp),%edx
add    %edx,%ecx
movslq %ecx,%rcx
movsd  (%rax,%rcx,8),%xmm0
lea    0xe89(%rip),%rdi
call   1040 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    114c <matprinter+0x2c>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1139 <matprinter+0x19>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<matprinter>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x18,%rsp
mov    %esi,0x4(%rsp)
test   %edi,%edi
jle    11a9 <matprinter+0x89>
mov    %rdx,%r15
mov    %edi,%eax
mov    0x4(%rsp),%ecx
mov    %rcx,0x8(%rsp)
mov    %rax,0x10(%rsp)
lea    0x0(,%rax,8),%rbx
xor    %r12d,%r12d
lea    0xea5(%rip),%rbp
jmp    1179 <matprinter+0x59>
nopl   (%rax)
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%r12
add    $0x8,%r15
cmp    0x10(%rsp),%r12
je     11a9 <matprinter+0x89>
cmpl   $0x0,0x4(%rsp)
jle    1160 <matprinter+0x40>
mov    0x8(%rsp),%r14
mov    %r15,%r13
nopl   0x0(%rax,%rax,1)
movsd  0x0(%r13),%xmm0
mov    %rbp,%rdi
call   1040 <printf@plt>
add    %rbx,%r13
add    $0xffffffffffffffff,%r14
jne    1190 <matprinter+0x70>
jmp    1160 <matprinter+0x40>
add    $0x18,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%f \00"
define void @matprinter(i32 %0, i32 %1, double* %2) {
%4 = alloca i32
%5 = alloca i32
%6 = alloca double*
%7 = alloca i32
%8 = alloca i32
store i32 %0, i32* %4
store i32 %1, i32* %5
store double* %2, double** %6
store i32 0, i32* %7
br label %9
9: ; preds = %34, %3
%10 = load i32, i32* %7
%11 = load i32, i32* %4
%12 = icmp slt i32 %10, %11
br i1 %12, label %13, label %37
13: ; preds = %9
store i32 0, i32* %8
br label %14
14: ; preds = %29, %13
%15 = load i32, i32* %8
%16 = load i32, i32* %5
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %32
18: ; preds = %14
%19 = load double*, double** %6
%20 = load i32, i32* %7
%21 = load i32, i32* %4
%22 = load i32, i32* %8
%23 = mul nsw i32 %21, %22
%24 = add nsw i32 %20, %23
%25 = sext i32 %24 to i64
%26 = getelementptr inbounds double, double* %19, i64 %25
%27 = load double, double* %26
%28 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %27)
br label %29
29: ; preds = %18
%30 = load i32, i32* %8
%31 = add nsw i32 %30, 1
store i32 %31, i32* %8
br label %14
32: ; preds = %14
%33 = call i32 @putchar(i8 signext 10)
br label %34
34: ; preds = %32
%35 = load i32, i32* %7
%36 = add nsw i32 %35, 1
store i32 %36, i32* %7
br label %9
37: ; preds = %9
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"%f \00"
define void @matprinter(i32 %0, i32 %1, double* nocapture %2) {
%4 = icmp sgt i32 %0, 0
br i1 %4, label %5, label %25
5: ; preds = %3
%6 = icmp sgt i32 %1, 0
%7 = zext i32 %0 to i64
%8 = zext i32 %0 to i64
%9 = zext i32 %1 to i64
br label %10
10: ; preds = %5, %21
%11 = phi i64 [ 0, %5 ], [ %23, %21 ]
br i1 %6, label %12, label %21
12: ; preds = %10, %12
%13 = phi i64 [ %19, %12 ], [ 0, %10 ]
%14 = mul nsw i64 %13, %7
%15 = add nuw nsw i64 %14, %11
%16 = getelementptr inbounds double, double* %2, i64 %15
%17 = load double, double* %16
%18 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double %17)
%19 = add nuw nsw i64 %13, 1
%20 = icmp eq i64 %19, %9
br i1 %20, label %21, label %12
21: ; preds = %12, %10
%22 = tail call i32 @putchar(i8 signext 10)
%23 = add nuw nsw i64 %11, 1
%24 = icmp eq i64 %23, %8
br i1 %24, label %25, label %10
25: ; preds = %21, %3
ret void
}