Displaying 4 results from an estimated 4 matches for "d0a".
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2019 Nov 05
2
Seeking clarification about indirect critical edges
...nted in `Transforms/Utils/BasicBlockUtils.h`; specifically in the
case of critical edges which are indirect transfer.
The code comments discuss the following example: a CFG with direct edges
A->D, B->D, and an indirect critical edge I->D; in this case two identical
"dummy" nodes D0A and D0B would be inserted before D, and the edges would
be re-routed as such: A->D0A, B->D0A, I->D0B, and D0A/D0B would just be
direct jumps to D.
What I'm not understanding is why it is necessary to split the non-critical
edges A->D and B->D? It seems like I->D0B would handl...
2019 Nov 06
2
Seeking clarification about indirect critical edges
That makes way more sense, thank you so much!
>From your description it sounds like you were assuming that “D1”, rather
> than “D0B”, is the original block “D”. In the source, “D1” is “BodyBlock”
> and “D”/”D0”/”D0B” are “Target” (and “D0A” is “DirectSucc”).
> I’d guess that the “easy cases” remark corresponds to bailing out on EH
> pads.
Yeah I could see how exception handling branches are a challenge, but
wouldn't this also break if the critical edge is one of 2+ incoming
indirect branches to its target?
For example, if...
2008 May 21
0
Errors in using gdb (PR#11496)
...ppreciated.
Thank you,
Dustin
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2009 Jul 23
1
[PATCH server] changes required for fedora rawhide inclusion.
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