On Tue, Jul 7, 2020 at 6:03 AM Hans-Peter Nilsson via Gcc-patches
wrote:
>
> The store to the whole of each volatile object was picked apart
> like there had been an individual assignment to each of the
> fields. Reads were added as part of that; see PR for details.
> The reads from volatile memo
> From: Hans-Peter Nilsson
> Date: Tue, 7 Jul 2020 06:01:37 +0200
> gcc:
> PR middle-end/94600
> * expr.c (expand_constructor): Make a temporary also if we're
> storing to volatile memory.
Oops, I dropped attribution here, but this patch is by Richard
Biener (modulo the comment
The store to the whole of each volatile object was picked apart
like there had been an individual assignment to each of the
fields. Reads were added as part of that; see PR for details.
The reads from volatile memory were a clear bug; individual
stores questionable. A separate patch clarifies the
