#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_pointer_array(int **a, int array_length) {
  char level = 'a';
  for (int offset = 0; offset < array_length; ++offset) {
    printf("%c: %i, ", (level + offset), **(a + offset));
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<print_pointer_array>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movb   $0x61,-0xd(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1167 <print_pointer_array+0x57>
movsbl -0xd(%rbp),%esi
add    -0x14(%rbp),%esi
mov    -0x8(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
mov    (%rax),%edx
lea    0xeae(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    112a <print_pointer_array+0x1a>
lea    0xe9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_pointer_array>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
test   %esi,%esi
jle    115c <print_pointer_array+0x3c>
mov    %rdi,%r15
mov    %esi,%r12d
lea    0xec7(%rip),%r14
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
mov    (%r15,%rbx,8),%rax
mov    (%rax),%edx
lea    0x61(%rbx),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1140 <print_pointer_array+0x20>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [9 x i8] c"%c: %i, \00"
@.str.1 = [2 x i8] c"\0A\00"
define void @print_pointer_array(i32** %0, i32 %1) {
%3 = alloca i32**
%4 = alloca i32
%5 = alloca i8
%6 = alloca i32
store i32** %0, i32*** %3
store i32 %1, i32* %4
store i8 97, i8* %5
store i32 0, i32* %6
br label %7
7: ; preds = %23, %2
%8 = load i32, i32* %6
%9 = load i32, i32* %4
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %26
11: ; preds = %7
%12 = load i8, i8* %5
%13 = sext i8 %12 to i32
%14 = load i32, i32* %6
%15 = add nsw i32 %13, %14
%16 = load i32**, i32*** %3
%17 = load i32, i32* %6
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds i32*, i32** %16, i64 %18
%20 = load i32*, i32** %19
%21 = load i32, i32* %20
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i32 %15, i32 %21)
br label %23
23: ; preds = %11
%24 = load i32, i32* %6
%25 = add nsw i32 %24, 1
store i32 %25, i32* %6
br label %7
26: ; preds = %7
%27 = 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 = [9 x i8] c"%c: %i, \00"
define void @print_pointer_array(i32** nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 0
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = zext i32 %1 to i64
br label %8
6: ; preds = %8, %2
%7 = tail call i32 @putchar(i32 10)
ret void
8: ; preds = %4, %8
%9 = phi i64 [ 0, %4 ], [ %16, %8 ]
%10 = getelementptr inbounds i32*, i32** %0, i64 %9
%11 = load i32*, i32** %10
%12 = load i32, i32* %11
%13 = trunc i64 %9 to i32
%14 = add i32 %13, 97
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), i32 %14, i32 %12)
%16 = add nuw nsw i64 %9, 1
%17 = icmp eq i64 %16, %5
br i1 %17, label %6, label %8
}