search for: regions

A fairly straightforward replacement, but note that we must rename all variables called ‘regions’ as something else (eg. ‘rs’) because -Wshadow warns about them (which is surprising to me since I thought this warning only applied to local vs global variable, not local variable vs global typedef). Also I got rid of the get_regions accessor method, replacing it everywhere with direct use of reg...

On 01/08/10 14:20, ether wrote: > sorry that i forgot to change the subjuect > > > hi all, Hi ether, now a kind of more complete answer. > On 2010-1-7 0:11, John Mosby wrote: >> In LLVM we could add support for generalized CFG regions and >> RegionPasses. A region is a part of the CFG. The only information we >> have is, that it has one entry and one exit, this it can be optimized >> separately. >> I think this is the best way to add region analysis. I must admit this >> approach >> helps me o...

...s. A region is a connected subgraph of a control flow graph that has exactly two connections to the rest of the graph. The easiest definition of a region is a region connected with the CFG by two edges, an entry edge and an exit edge. Such a region is called simple. However there also exist regions, that have several entry and exit edges, but that can be transformed to a region with a single entry and exit edge by inserting merge basic blocks. These regions are called refined regions. A region R (simple or refined) has these attributes: * One entry basic block "entry" (part of...

On Mon, 2005-09-19 at 20:58, Milos Wimmer wrote: > I send 2 streams from machine "A" to icecast server: > "cro-region-256.ogg" (224 kb/s stream) > "cro-region.ogg" (128 kb/s stream) > > and 1 backup stream from machine "B" to same icecast server: > "z-cro-region.ogg" (128 kb/s stream) > > I'm

...k that the chance that a region transform > affect the loop structure is smaller, so maybe way 2 is better. This would need some thoughts. Ideal I think we would not order them, but if a region changed, just reconstruct the loops that are in this region and if a loop changed just reconstruct the regions in this loop. > at last, i have some idea about finding a interesting region: (maybe > make the region analysis too complex) > > we can introduce some thing like "region filter" that determine the > property of a region, the region filter will like a "pass", whi...

...cted subgraph of a control flow graph that has exactly > two connections to the rest of the graph. > The easiest definition of a region is a region connected with the CFG > by two edges, an entry edge and an exit edge. Such a region is called > simple. > However there also exist regions, that have several entry and exit edges, > but that can be transformed to a region with a single entry and exit edge by > inserting merge basic blocks. These regions are called refined regions. > > A region R (simple or refined) has these attributes: > > * One entry basic b...

Why not use the "standard" algorithm for detecting SESE-regions and building a program structure tree? It should handle everything you want. It also becomes much simpler to specify a connected SESE-region by entry/exit edges, while a disconnected region is specified by entry/exit blocks. Only defining regions on blocks is not enough to be able to quickly determ...

On 4/15/20 11:16 AM, Richard W.M. Jones wrote: > A fairly straightforward replacement, but note that we must rename all > variables called ‘regions’ as something else (eg. ‘rs’) because > -Wshadow warns about them (which is surprising to me since I thought > this warning only applied to local vs global variable, not local > variable vs global typedef). > > Also I got rid of the get_regions accessor method, replacing it > eve...

This was a rather longer trip around the houses than I anticipated! The basic purpose of the patch series is to set $nbdkit_stdio_safe to "0" or "1" in sh and eval plugin scripts. To do that, I ended up adding a nicer way to manipulate environ lists, and to do that, I ended up adding a whole generic vector implementation which is applicable in a lot of different places.

This is an automated email from the git hooks/post-receive script. arrfab pushed a commit to branch master in repository centos/centos.org. The following commit(s) were added to refs/heads/master by this push: new 34ad21c Updated page for AWS AMI images ID and link 34ad21c is described below commit 34ad21c7bdf8b4190fed5ab9facc149199598da2 Author: Fabian Arrotin <arrfab at

On 01/13/10 00:56, Jan Sjodin wrote: > Why not use the "standard" algorithm for detecting SESE-regions and building a program structure tree? > It should handle everything you want. It also becomes much simpler to specify a connected SESE-region > by entry/exit edges, while a disconnected region is specified by entry/exit blocks. Only defining regions on > blocks is not enough to be able to...

On 01/20/10 18:05, Jan Sjodin wrote: >>>> bbs, to generate these edges. As we do not have to modify the CFG other >>>> passes like dominance information are still valid, and we do not have to >>>> create a lot of auxiliary bbs, to be able to detect all regions. This >>>> saves memory and runtime. In general it is probably not too easy to >>>> decide where to insert these bbs either: >>> >>> The general rule is to split all blocks with multiple in-edges and multiple out-edges >>> into blocks with either m...

...ral this approach saves a preliminary pass that has to insert new > >> bbs, to generate these edges. As we do not have to modify the CFG other >> passes like dominance information are still valid, and we do not have to >> create a lot of auxiliary bbs, to be able to detect all regions. This >> saves memory and runtime. In general it is probably not too easy to >> decide where to insert these bbs either: > > The general rule is to split all blocks with multiple in-edges and multiple out-edges > into blocks with either multiple in-edges or multiple out-edges,...

Dear R people, I am having a problem with modeling the following SAS code in R: Class ID Gr Hemi Region Gender Model Y = Gr Region Hemi Gender Gr*Hemi Gr*Region Hemi*Region Gender*Region Gender*Hemi Gr*Hemi*Region Gender*Hemi*Region Gr*Gender*Hemi*Region Random Intercept Region Hemi /Subject = ID (Gr Gender) I.e., ID is a random effect nested in Gr and Gender, leading to ID-specific

An evolution of the patch I posted yesterday to qemu-devel (https://www.mail-archive.com/qemu-devel@nongnu.org/msg588920.html) which (a) works and (b) has a test. Rich.

Hi all, I'm working with regions, and I was surprised by the region set of this function: > define void @foo() { > br i1 false, label %loop, label %end > > loop: > br i1 false, label %loop, label %end > > end: > ret void > } .dot file as generated by opt —view-regions attached. Essentially, ther...

On Nov 24, 2010, at 5:36 AM, Bill Wendling wrote: > On Nov 24, 2010, at 4:58 AM, John McCall wrote: >> >>> The object 'f' is in a different cleanup area than 'b' which, in turn >>> is in a different area than 'z'. These three regions should point to >>> three different landing pads (or different offsets in the same landing >>> pad), which (I believe) are encoded in IR by being declared after >>> different dispatch instructions, all of which within the same region. >> >> Nope. Three regio...

...ontrol flow graph that has exactly >> two connections to the rest of the graph. >> The easiest definition of a region is a region connected with the CFG >> by two edges, an entry edge and an exit edge. Such a region is called >> simple. >> However there also exist regions, that have several entry and exit edges, >> but that can be transformed to a region with a single entry and exit edge by >> inserting merge basic blocks. These regions are called refined regions. >> >> A region R (simple or refined) has these attributes: >> >&...

This is an automated email from the git hooks/post-receive script. arrfab pushed a commit to branch master in repository centos/centos.org. The following commit(s) were added to refs/heads/master by this push: new d2b87a3 Reflected new 7.9.2009 release and updated AMI IDs for AWS d2b87a3 is described below commit d2b87a32dda9b2e3b16ad2a55343ae63d000a64d Author: Fabian Arrotin <arrfab

...e benefits of separating > a region from the rest of the code... Also, you can only guarantee > side effect free code if there is no function calls or the whole > program is running single threaded. SSA would guarantee all the other > cases. Hi Renato, these are just examples for what regions could be used for. The idea is in a first step to create a region tree that contains all regions in the CFG, where a region is a subgraph of the CFG that has just one entry and on exit edge (or can be transformed to such a region). These regions can easily be extracted or separately analyzed/op...