#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 alpha_to_int(char, char *);
void string_to_int(char *tab, char *alphabet, int *itab) {
  int i;
  for (i = 0; tab[i] != '\0'; ++i) {
    itab[i] = alpha_to_int(tab[i], alphabet);
  }
}


x86 assembly (clang, -O0):
<string_to_int>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
cmp    $0x0,%eax
je     1172 <string_to_int+0x62>
mov    -0x8(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,1),%al
mov    -0x10(%rbp),%rsi
movsbl %al,%edi
call   1030 <alpha_to_int@plt>
mov    %eax,%edx
mov    -0x18(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    %edx,(%rax,%rcx,4)
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    112b <string_to_int+0x1b>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<string_to_int>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    (%rdi),%al
test   %al,%al
je     114d <string_to_int+0x3d>
mov    %rdx,%r14
mov    %rsi,%r15
mov    %rdi,%r12
xor    %ebx,%ebx
nopl   0x0(%rax)
movsbl %al,%edi
mov    %r15,%rsi
call   1030 <alpha_to_int@plt>
mov    %eax,(%r14,%rbx,4)
movzbl 0x1(%r12,%rbx,1),%eax
add    $0x1,%rbx
test   %al,%al
jne    1130 <string_to_int+0x20>
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
define void @string_to_int(i8* %0, i8* %1, i32* %2) {
%4 = alloca i8*
%5 = alloca i8*
%6 = alloca i32*
%7 = alloca i32
store i8* %0, i8** %4
store i8* %1, i8** %5
store i32* %2, i32** %6
store i32 0, i32* %7
br label %8
8: ; preds = %28, %3
%9 = load i8*, i8** %4
%10 = load i32, i32* %7
%11 = sext i32 %10 to i64
%12 = getelementptr inbounds i8, i8* %9, i64 %11
%13 = load i8, i8* %12
%14 = sext i8 %13 to i32
%15 = icmp ne i32 %14, 0
br i1 %15, label %16, label %31
16: ; preds = %8
%17 = load i8*, i8** %4
%18 = load i32, i32* %7
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i8, i8* %17, i64 %19
%21 = load i8, i8* %20
%22 = load i8*, i8** %5
%23 = call i32 @alpha_to_int(i8 signext %21, i8* %22)
%24 = load i32*, i32** %6
%25 = load i32, i32* %7
%26 = sext i32 %25 to i64
%27 = getelementptr inbounds i32, i32* %24, i64 %26
store i32 %23, i32* %27
br label %28
28: ; preds = %16
%29 = load i32, i32* %7
%30 = add nsw i32 %29, 1
store i32 %30, i32* %7
br label %8
31: ; preds = %8
ret void
}

LLVM IR (-O2):
define void @string_to_int(i8* nocapture %0, i8* %1, i32* nocapture writeonly %2) {
%4 = load i8, i8* %0
%5 = icmp eq i8 %4, 0
br i1 %5, label %15, label %6
6: ; preds = %3, %6
%7 = phi i64 [ %11, %6 ], [ 0, %3 ]
%8 = phi i8 [ %13, %6 ], [ %4, %3 ]
%9 = tail call i32 @alpha_to_int(i8 signext %8, i8* %1)
%10 = getelementptr inbounds i32, i32* %2, i64 %7
store i32 %9, i32* %10
%11 = add nuw i64 %7, 1
%12 = getelementptr inbounds i8, i8* %0, i64 %11
%13 = load i8, i8* %12
%14 = icmp eq i8 %13, 0
br i1 %14, label %15, label %6
15: ; preds = %6, %3
ret void
}