* [9fans] reg DI left allocated
@ 2013-10-15 19:45 Steve Simon
2013-10-15 19:56 ` erik quanstrom
2013-10-15 21:22 ` Charles Forsyth
0 siblings, 2 replies; 3+ messages in thread
From: Steve Simon @ 2013-10-15 19:45 UTC (permalink / raw)
To: 9fans
Hi,
Compiling open source software with 8c I see:
"reg DI left allocated"
I haven't unpicked the code from all its #defines to see
what is actually causing this, and I assume the answer is just
to simplify the code but done anyone have an explanation as
to what might have happened?
Thanks,
-Steve
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] reg DI left allocated
2013-10-15 19:45 [9fans] reg DI left allocated Steve Simon
@ 2013-10-15 19:56 ` erik quanstrom
2013-10-15 21:22 ` Charles Forsyth
1 sibling, 0 replies; 3+ messages in thread
From: erik quanstrom @ 2013-10-15 19:56 UTC (permalink / raw)
To: 9fans
On Tue Oct 15 15:46:57 EDT 2013, steve@quintile.net wrote:
> Hi,
>
> Compiling open source software with 8c I see:
>
> "reg DI left allocated"
>
> I haven't unpicked the code from all its #defines to see
> what is actually causing this, and I assume the answer is just
> to simplify the code but done anyone have an explanation as
> to what might have happened?
registers need to be dead after each compilation unit.
(call to yyparse()). in this case DI was left allocated.
- erik
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] reg DI left allocated
2013-10-15 19:45 [9fans] reg DI left allocated Steve Simon
2013-10-15 19:56 ` erik quanstrom
@ 2013-10-15 21:22 ` Charles Forsyth
1 sibling, 0 replies; 3+ messages in thread
From: Charles Forsyth @ 2013-10-15 21:22 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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On 15 October 2013 20:45, Steve Simon <steve@quintile.net> wrote:
> I assume the answer is just
> to simplify the code
>
Yes, to get it through, but it shouldn't happen. If you can produce a
simplified test case that will be helpful.
It might involve 64-bit ints or structure assignment.
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-10-15 19:45 [9fans] reg DI left allocated Steve Simon
2013-10-15 19:56 ` erik quanstrom
2013-10-15 21:22 ` Charles Forsyth
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