[Loriel]

Originally Posted by ApothiX

This code (which is C),

It is actually C++. C does not have a bool type unless it is C99 and you include stdbool.h or something.

when compiled (without optimizations) and dissassembled, produces the EXACT same assembly as this code

Does not!

PHP Code:

ben@oreichalkon ~ $ cat foo.cpp
#include <cstdlib>
#include <cstdio>

bool random_bool() {
        return std::rand() % 2;
}

int main() {
        if (random_bool()
        #ifdef REDUNDANT_CHECK
          == true
        #endif
        )
                std::puts("true!");
}
ben@oreichalkon ~ $ gcc -O0 -S -o foo.s foo.cpp; gcc -O0 -S -o foo_.s -DREDUNDANT_CHECK foo.cpp
ben@oreichalkon ~ $ diff foo_.s foo.s                                           41,43c41,42
<       movzbl  %al, %eax
<       cmpl    $1, %eax
<       jne     .L3
---
>       testb   %al, %al
>       je      .L3