#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 *, char *);
char *replace(char *, char *, char *);
int main(int argc, char const *argv[]) {
  printf("> %s\n", replace("Billy!", "B", "S"));
  printf("> %s\n", replace("Billy!", "B", "Programming-"));
  printf("> %s\n", replace("Billy!", "Billy!", "Steve!"));
  printf("> %s\n", replace("Billy!", "!", "-Steve!"));
  printf("> %s\n", replace("Billy!", "Holla!", "Steve!"));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec9(%rip),%rdi
lea    0xec9(%rip),%rsi
lea    0xec4(%rip),%rdx
call   1040 <replace@plt>
mov    %rax,%rsi
lea    0xea6(%rip),%rdi
call   1030 <printf@plt>
lea    0xea0(%rip),%rdi
lea    0xea0(%rip),%rsi
lea    0xe9d(%rip),%rdx
call   1040 <replace@plt>
mov    %rax,%rsi
lea    0xe7d(%rip),%rdi
call   1030 <printf@plt>
lea    0xe77(%rip),%rsi
lea    0xe89(%rip),%rdx
mov    %rsi,%rdi
call   1040 <replace@plt>
mov    %rax,%rsi
lea    0xe58(%rip),%rdi
call   1030 <printf@plt>
lea    0xe52(%rip),%rdi
lea    0xe70(%rip),%rsi
lea    0xe5c(%rip),%rdx
call   1040 <replace@plt>
mov    %rax,%rsi
lea    0xe2f(%rip),%rdi
call   1030 <printf@plt>
lea    0xe29(%rip),%rdi
lea    0xe42(%rip),%rsi
lea    0xe34(%rip),%rdx
call   1040 <replace@plt>
mov    %rax,%rsi
lea    0xe06(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
lea    0xeda(%rip),%rbx
lea    0xeda(%rip),%r15
lea    0xed5(%rip),%rdx
mov    %rbx,%rdi
mov    %r15,%rsi
call   1040 <replace@plt>
lea    0xeb4(%rip),%r14
mov    %r14,%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
lea    0xeb3(%rip),%rdx
mov    %rbx,%rdi
mov    %r15,%rsi
call   1040 <replace@plt>
mov    %r14,%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
lea    0xea4(%rip),%r15
mov    %rbx,%rdi
mov    %rbx,%rsi
mov    %r15,%rdx
call   1040 <replace@plt>
mov    %r14,%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
lea    0xe90(%rip),%rsi
lea    0xe7c(%rip),%rdx
mov    %rbx,%rdi
call   1040 <replace@plt>
mov    %r14,%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
lea    0xe6a(%rip),%rsi
mov    %rbx,%rdi
mov    %r15,%rdx
call   1040 <replace@plt>
mov    %r14,%rdi
mov    %rax,%rsi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [6 x i8] c"> %s\0A\00"
@.str.1 = [7 x i8] c"Billy!\00"
@.str.2 = [2 x i8] c"B\00"
@.str.3 = [2 x i8] c"S\00"
@.str.4 = [13 x i8] c"Programming-\00"
@.str.5 = [7 x i8] c"Steve!\00"
@.str.6 = [2 x i8] c"!\00"
@.str.7 = [8 x i8] c"-Steve!\00"
@.str.8 = [7 x i8] c"Holla!\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %6)
%8 = call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %8)
%10 = call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %10)
%12 = call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.6, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.7, i64 0, i64 0))
%13 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %12)
%14 = call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.8, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%15 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %14)
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"> %s\0A\00"
@.str.1 = [7 x i8] c"Billy!\00"
@.str.2 = [2 x i8] c"B\00"
@.str.3 = [2 x i8] c"S\00"
@.str.4 = [13 x i8] c"Programming-\00"
@.str.5 = [7 x i8] c"Steve!\00"
@.str.6 = [2 x i8] c"!\00"
@.str.7 = [8 x i8] c"-Steve!\00"
@.str.8 = [7 x i8] c"Holla!\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
%4 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = tail call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0))
%6 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = tail call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%8 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %7)
%9 = tail call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.6, i64 0, i64 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.7, i64 0, i64 0))
%10 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %9)
%11 = tail call i8* @replace(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.8, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%12 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i8* %11)
ret i32 0
}