#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 stampa(float **m, int n) {
  int i, j;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++)
      printf("%.2f\t", m[i][j]);
    printf("\n");
  }
}


x86 assembly (clang, -O0):
<stampa>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1196 <stampa+0x86>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    117a <stampa+0x6a>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
movslq -0x14(%rbp),%rcx
movss  (%rax,%rcx,4),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe9b(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1139 <stampa+0x29>
lea    0xe85(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <stampa+0x16>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<stampa>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
test   %esi,%esi
jle    1183 <stampa+0x63>
mov    %rdi,%r15
mov    %esi,%r12d
xor    %r13d,%r13d
lea    0xec3(%rip),%r14
nopl   (%rax)
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    (%r15,%r13,8),%rax
movss  (%rax,%rbx,4),%xmm0
cvtss2sd %xmm0,%xmm0
mov    %r14,%rdi
mov    $0x1,%al
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1150 <stampa+0x30>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%r13
cmp    %r12,%r13
jne    1140 <stampa+0x20>
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [6 x i8] c"%.2f\09\00"
@.str.1 = [2 x i8] c"\0A\00"
define void @stampa(float** %0, i32 %1) {
%3 = alloca float**
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
store float** %0, float*** %3
store i32 %1, i32* %4
store i32 0, i32* %5
br label %7
7: ; preds = %33, %2
%8 = load i32, i32* %5
%9 = load i32, i32* %4
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %36
11: ; preds = %7
store i32 0, i32* %6
br label %12
12: ; preds = %28, %11
%13 = load i32, i32* %6
%14 = load i32, i32* %4
%15 = icmp slt i32 %13, %14
br i1 %15, label %16, label %31
16: ; preds = %12
%17 = load float**, float*** %3
%18 = load i32, i32* %5
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds float*, float** %17, i64 %19
%21 = load float*, float** %20
%22 = load i32, i32* %6
%23 = sext i32 %22 to i64
%24 = getelementptr inbounds float, float* %21, i64 %23
%25 = load float, float* %24
%26 = fpext float %25 to double
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), double %26)
br label %28
28: ; preds = %16
%29 = load i32, i32* %6
%30 = add nsw i32 %29, 1
store i32 %30, i32* %6
br label %12
31: ; preds = %12
%32 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %33
33: ; preds = %31
%34 = load i32, i32* %5
%35 = add nsw i32 %34, 1
store i32 %35, i32* %5
br label %7
36: ; preds = %7
ret void
}

LLVM IR (-O2):
@.str = [6 x i8] c"%.2f\09\00"
define void @stampa(float** nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 0
br i1 %3, label %4, label %22
4: ; preds = %2
%5 = zext i32 %1 to i64
br label %6
6: ; preds = %18, %4
%7 = phi i64 [ 0, %4 ], [ %20, %18 ]
%8 = getelementptr inbounds float*, float** %0, i64 %7
br label %9
9: ; preds = %6, %9
%10 = phi i64 [ 0, %6 ], [ %16, %9 ]
%11 = load float*, float** %8
%12 = getelementptr inbounds float, float* %11, i64 %10
%13 = load float, float* %12
%14 = fpext float %13 to double
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), double %14)
%16 = add nuw nsw i64 %10, 1
%17 = icmp eq i64 %16, %5
br i1 %17, label %18, label %9
18: ; preds = %9
%19 = tail call i32 @putchar(i32 10)
%20 = add nuw nsw i64 %7, 1
%21 = icmp eq i64 %20, %5
br i1 %21, label %22, label %6
22: ; preds = %18, %2
ret void
}