#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 strlen(char *);
void unChop(char **words, int wordCount) {
  int i;
  for (i = 0; i < wordCount - 1; i++) {
    int len = strlen(words[i]);
    words[i][len] = '\t';
  }
}


x86 assembly (clang, -O0):
<unChop>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jge    116d <unChop+0x5d>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1030 <strlen@plt>
mov    %eax,-0x14(%rbp)
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
movslq -0x14(%rbp),%rcx
movb   $0x9,(%rax,%rcx,1)
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <unChop+0x16>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<unChop>:
push   %r15
push   %r14
push   %rbx
cmp    $0x2,%esi
jl     114c <unChop+0x3c>
mov    %esi,%r14d
mov    %rdi,%r15
add    $0xffffffff,%r14d
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
mov    (%r15,%rbx,8),%rdi
call   1030 <strlen@plt>
mov    (%r15,%rbx,8),%rcx
cltq
movb   $0x9,(%rcx,%rax,1)
add    $0x1,%rbx
cmp    %rbx,%r14
jne    1130 <unChop+0x20>
pop    %rbx
pop    %r14
pop    %r15
ret

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

LLVM IR (-O2):
define void @unChop(i8** nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 1
br i1 %3, label %4, label %17
4: ; preds = %2
%5 = add nsw i32 %1, -1
%6 = zext i32 %5 to i64
br label %7
7: ; preds = %4, %7
%8 = phi i64 [ 0, %4 ], [ %15, %7 ]
%9 = getelementptr inbounds i8*, i8** %0, i64 %8
%10 = load i8*, i8** %9
%11 = tail call i32 @strlen(i8* %10)
%12 = load i8*, i8** %9
%13 = sext i32 %11 to i64
%14 = getelementptr inbounds i8, i8* %12, i64 %13
store i8 9, i8* %14
%15 = add nuw nsw i64 %8, 1
%16 = icmp eq i64 %15, %6
br i1 %16, label %17, label %7
17: ; preds = %7, %2
ret void
}