#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 */
char *UTIL_mallocStr(size_t);
int /*<<< orphan*/ strcat(char *, char *);
int /*<<< orphan*/ strcpy(char *, char *);
int strlen(char *);
char *OC_mkLetIn(char *varName, char *def) {
  size_t length = strlen(varName) + strlen(def) + 20;
  char *str = UTIL_mallocStr(length);
  strcpy(str, "  ");
  strcat(str, "let ");
  strcat(str, varName);
  strcat(str, " = ");
  strcat(str, def);
  strcat(str, " in\n");
  return str;
}


x86 assembly (clang, -O0):
<OC_mkLetIn>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x8(%rbp),%rdi
call   1040 <strlen@plt>
mov    %eax,-0x24(%rbp)
mov    -0x10(%rbp),%rdi
call   1040 <strlen@plt>
mov    %eax,%ecx
mov    -0x24(%rbp),%eax
add    %ecx,%eax
add    $0x14,%eax
cltq
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rdi
call   1050 <UTIL_mallocStr@plt>
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rdi
lea    0xe73(%rip),%rsi
call   1030 <strcpy@plt>
mov    -0x20(%rbp),%rdi
lea    0xe66(%rip),%rsi
call   1060 <strcat@plt>
mov    -0x20(%rbp),%rdi
mov    -0x8(%rbp),%rsi
call   1060 <strcat@plt>
mov    -0x20(%rbp),%rdi
lea    0xe4e(%rip),%rsi
call   1060 <strcat@plt>
mov    -0x20(%rbp),%rdi
mov    -0x10(%rbp),%rsi
call   1060 <strcat@plt>
mov    -0x20(%rbp),%rdi
lea    0xe35(%rip),%rsi
call   1060 <strcat@plt>
mov    -0x20(%rbp),%rax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<OC_mkLetIn>:
push   %r15
push   %r14
push   %rbx
mov    %rsi,%r14
mov    %rdi,%r15
call   1040 <strlen@plt>
mov    %eax,%ebx
mov    %r14,%rdi
call   1040 <strlen@plt>
add    %ebx,%eax
add    $0x14,%eax
movslq %eax,%rdi
call   1050 <UTIL_mallocStr@plt>
mov    %rax,%rbx
lea    0xe8f(%rip),%rsi
mov    %rax,%rdi
call   1030 <strcpy@plt>
lea    0xe83(%rip),%rsi
mov    %rbx,%rdi
call   1060 <strcat@plt>
mov    %rbx,%rdi
mov    %r15,%rsi
call   1060 <strcat@plt>
lea    0xe6e(%rip),%rsi
mov    %rbx,%rdi
call   1060 <strcat@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1060 <strcat@plt>
lea    0xe58(%rip),%rsi
mov    %rbx,%rdi
call   1060 <strcat@plt>
mov    %rbx,%rax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c" \00"
@.str.1 = [5 x i8] c"let \00"
@.str.2 = [4 x i8] c" = \00"
@.str.3 = [5 x i8] c" in\0A\00"
define i8* @OC_mkLetIn(i8* %0, i8* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i64
%6 = alloca i8*
store i8* %0, i8** %3
store i8* %1, i8** %4
%7 = load i8*, i8** %3
%8 = call i32 @strlen(i8* %7)
%9 = load i8*, i8** %4
%10 = call i32 @strlen(i8* %9)
%11 = add nsw i32 %8, %10
%12 = add nsw i32 %11, 20
%13 = sext i32 %12 to i64
store i64 %13, i64* %5
%14 = load i64, i64* %5
%15 = call i8* @UTIL_mallocStr(i64 %14)
store i8* %15, i8** %6
%16 = load i8*, i8** %6
%17 = call i32 @strcpy(i8* %16, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%18 = load i8*, i8** %6
%19 = call i32 @strcat(i8* %18, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%20 = load i8*, i8** %6
%21 = load i8*, i8** %3
%22 = call i32 @strcat(i8* %20, i8* %21)
%23 = load i8*, i8** %6
%24 = call i32 @strcat(i8* %23, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%25 = load i8*, i8** %6
%26 = load i8*, i8** %4
%27 = call i32 @strcat(i8* %25, i8* %26)
%28 = load i8*, i8** %6
%29 = call i32 @strcat(i8* %28, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0))
%30 = load i8*, i8** %6
ret i8* %30
}

LLVM IR (-O2):
@.str = [3 x i8] c" \00"
@.str.1 = [5 x i8] c"let \00"
@.str.2 = [4 x i8] c" = \00"
@.str.3 = [5 x i8] c" in\0A\00"
define i8* @OC_mkLetIn(i8* %0, i8* %1) {
%3 = tail call i32 @strlen(i8* %0)
%4 = tail call i32 @strlen(i8* %1)
%5 = add i32 %3, 20
%6 = add i32 %5, %4
%7 = sext i32 %6 to i64
%8 = tail call i8* @UTIL_mallocStr(i64 %7)
%9 = tail call i32 @strcpy(i8* %8, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%10 = tail call i32 @strcat(i8* %8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%11 = tail call i32 @strcat(i8* %8, i8* %0)
%12 = tail call i32 @strcat(i8* %8, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%13 = tail call i32 @strcat(i8* %8, i8* %1)
%14 = tail call i32 @strcat(i8* %8, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0))
ret i8* %8
}