#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*/ copyarr(double *, double *, int);
void copyarr2D(double **a, double **b, int nrows, int ncols) {
  int x;
  for (x = 0; x < nrows; ++x) {
    copyarr(a[x], b[x], ncols);
  }
}


x86 assembly (clang, -O0):
<copyarr2D>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %edx,-0x14(%rbp)
mov    %ecx,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    1167 <copyarr2D+0x57>
mov    -0x8(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,8),%rsi
mov    -0x18(%rbp),%edx
call   1030 <copyarr@plt>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    112d <copyarr2D+0x1d>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<copyarr2D>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
test   %edx,%edx
jle    1149 <copyarr2D+0x39>
mov    %ecx,%r14d
mov    %rsi,%r15
mov    %rdi,%r12
mov    %edx,%ebx
xor    %ebp,%ebp
nopl   0x0(%rax)
mov    (%r12,%rbp,8),%rdi
mov    (%r15,%rbp,8),%rsi
mov    %r14d,%edx
call   1030 <copyarr@plt>
add    $0x1,%rbp
cmp    %rbp,%rbx
jne    1130 <copyarr2D+0x20>
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
define void @copyarr2D(double** %0, double** %1, i32 %2, i32 %3) {
%5 = alloca double**
%6 = alloca double**
%7 = alloca i32
%8 = alloca i32
%9 = alloca i32
store double** %0, double*** %5
store double** %1, double*** %6
store i32 %2, i32* %7
store i32 %3, i32* %8
store i32 0, i32* %9
br label %10
10: ; preds = %27, %4
%11 = load i32, i32* %9
%12 = load i32, i32* %7
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %30
14: ; preds = %10
%15 = load double**, double*** %5
%16 = load i32, i32* %9
%17 = sext i32 %16 to i64
%18 = getelementptr inbounds double*, double** %15, i64 %17
%19 = load double*, double** %18
%20 = load double**, double*** %6
%21 = load i32, i32* %9
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds double*, double** %20, i64 %22
%24 = load double*, double** %23
%25 = load i32, i32* %8
%26 = call i32 @copyarr(double* %19, double* %24, i32 %25)
br label %27
27: ; preds = %14
%28 = load i32, i32* %9
%29 = add nsw i32 %28, 1
store i32 %29, i32* %9
br label %10
30: ; preds = %10
ret void
}

LLVM IR (-O2):
define void @copyarr2D(double** nocapture %0, double** nocapture %1, i32 %2, i32 %3) {
%5 = icmp sgt i32 %2, 0
br i1 %5, label %6, label %17
6: ; preds = %4
%7 = zext i32 %2 to i64
br label %8
8: ; preds = %6, %8
%9 = phi i64 [ 0, %6 ], [ %15, %8 ]
%10 = getelementptr inbounds double*, double** %0, i64 %9
%11 = load double*, double** %10
%12 = getelementptr inbounds double*, double** %1, i64 %9
%13 = load double*, double** %12
%14 = tail call i32 @copyarr(double* %11, double* %13, i32 %3)
%15 = add nuw nsw i64 %9, 1
%16 = icmp eq i64 %15, %7
br i1 %16, label %17, label %8
17: ; preds = %8, %4
ret void
}