Re: Calculating array sizes in C - was: Re: Build regressions/improvements in v6.2-rc1

From: John Paul Adrian Glaubitz
Date: Tue Jan 17 2023 - 17:06:25 EST


Hi!

On 1/17/23 21:05, Geert Uytterhoeven wrote:
Isn't this supposed to be caught by this check:

a, __same_type(a, NULL)

?

Yeah, but gcc thinks it is smarter than us...
Probably it drops the test, assuming UB cannot happen.

Hmm, sounds like a GGC bug to me then. Not sure how to fix this then.

Adrian

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