On Wednesday, 28 February 2018 at 23:58:44 UTC, Jonathan M Davis
wrote:
On Wednesday, February 28, 2018 19:43:07 Kagamin via
Digitalmars-d wrote:
On Wednesday, 28 February 2018 at 14:05:19 UTC, Jonathan M
Davis
wrote:
> [...]
Doesn't difficulty depend on what exactly to get right? It's
not a spherical problem in vacuum.
Feel free to discuss any code-flow analysis issues with Walter,
but he's consistently been against using it for much of
anything whenever I've seen him discuss it. Not even stuff like
VRP covers multiple lines of code, because doing so would
require code-flow analysis. And he's specifically said that
he's against using it for detecting when a null pointer is
dereferenced. IIRC, he's stated that dmd's optimizer uses
code-flow analysis for some stuff, but for anything that
involves putting it in the frontend where the behavior would
have to be encoded in the spec, he's been against it.
- Jonathan M Davis
Isn't DIP1000 [1] basically code flow analysis and implemented
(kinda?) in dmd with -dip1000 now?
[1] https://github.com/dlang/DIPs/blob/master/DIPs/DIP1000.md
