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* [Bug target/84437] long long casting breaks PDP-11 with -m10 model option (includes trivial reproducer)
[not found] <bug-84437-4@http.gcc.gnu.org/bugzilla/>
@ 2021-03-18 14:19 ` pkoning at gcc dot gnu.org
0 siblings, 0 replies; only message in thread
From: pkoning at gcc dot gnu.org @ 2021-03-18 14:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84437
pkoning at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from pkoning at gcc dot gnu.org ---
Agreed, this is fixed in the current code, shift handling was cleaned up as
part of the CCmode change.
That said, the code produces the right answer but it does it in a bad way,
because the port does not provide a pattern for this sign extend. The GCC
default is to use a shift, which for a pdp-11 is not the best answer.
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2021-03-18 14:19 ` [Bug target/84437] long long casting breaks PDP-11 with -m10 model option (includes trivial reproducer) pkoning at gcc dot gnu.org
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