[Issue 12820] DMD can inline calls to functions that use alloca, allocating the memory in the caller function instead.

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12820

--- Comment #3 from yebblies <yebblies at gmail.com> ---
(In reply to Orvid King from comment #1)
> I believe that the issue here is not that DMD inlines alloca (which it
> should) 
> but instead that it fails to recognize that the memory allocated by alloca 
> should be released at the end of the scope's body. 

alloca is defined to release memory at the end of the calling function. 
Releasing memory early would require a different variant of alloca, and while
possible, this is difficult.  Since the inliner can't do this conversion, it
shouldn't be inlining alloca.

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