search for: memorydependence

...mory loads and stores with value forwarding in hardware implementations. I'd like to compare the profiled data to static alias analysis, so it would be super useful if there was a way to answer the questions about aliasing across backedges that AliasAnalysis considers meaningless. Perhaps the MemoryDependence would allow this? Thank you, Jeremy On Wed, Aug 20, 2014 at 11:58 PM, Hal Finkel <hfinkel at anl.gov> wrote: > ----- Original Message ----- > > From: "Jeremy Salwen" <jeremysalwen at gmail.com> > > To: "Daniel Berlin" <dberlin at dberlin.org&gt...

...<dberlin at dberlin.org> a écrit : > > On Thu, May 21, 2015 at 11:37 AM, Félix Cloutier <felixcca at yahoo.ca> wrote: >> Hi all, >> >> I have a custom alias analysis pass that enforces that pointers from different address spaces do not alias, and I'm using MemoryDependenceAnalysis to, well, figure out dependence analysis. >> >> The AA pass is extremely simple, it only checks the address space of pointers, returns NoAlias if they're different, and delegates otherwise. It is the last alias analysis pass added to my PassManager (basically, after BasicAA...

Hi all, I have a custom alias analysis pass that enforces that pointers from different address spaces do not alias, and I'm using MemoryDependenceAnalysis to, well, figure out dependence analysis. The AA pass is extremely simple, it only checks the address space of pointers, returns NoAlias if they're different, and delegates otherwise. It is the last alias analysis pass added to my PassManager (basically, after BasicAA only). As far as...

...out specific loads and stores." it >> sounds like you are saying that it does consider dynamic executions, and >> that you can make queries about specific dynamic executions. I can't seem >> to find this option anywhere in the API.. > Yes, sorry, I was thinking of the MemoryDependence interface, which > does give you that information. > AliasAnalysis does not. > >> >> Perhaps someone else could clear the confusion, because I feel like there is >> a gap of communication. > > >> >> For example, in this code what would the result be for...

...gt; sounds like you are saying that it does consider dynamic executions, >> and >> >> that you can make queries about specific dynamic executions. I can't >> seem >> >> to find this option anywhere in the API.. >> > Yes, sorry, I was thinking of the MemoryDependence interface, which >> > does give you that information. >> > AliasAnalysis does not. >> > >> >> >> >> Perhaps someone else could clear the confusion, because I feel like >> there is >> >> a gap of communication. >> > >&g...

Thank you all for your reply. if(a>10) b=10; else if (a<10) b = 5; Here is the IR of the if-elseif: 56 %0 = load i32, i32* %a, align 4 57 %cmp = icmp sgt i32 %0, 10 58 br i1 %cmp, label %if.then, label %if.else 60 if.then: ; preds = %entry 61 store i32 10, i32* %b, align 4 62 br label %if.end.4 63 64 if.else:

Hey Daniel, Thanks again for the help. I'm still a bit confused about the interface to the alias analysis. It seems like we are talking about different interfaces. Has it changed from what the documentation says? As far as I can tell, the documentation takes a specific Value*, and no information about which dynamic execution it is talking about. When you say "Right. It's a

Nick Lewycky wrote: > Andreas Bolka wrote: >> Hi all, >> >> I'd like to have a first stab at a loop-based auto-vectorization pass as >> part of 2009's Google Summer of Code program. As far as I can tell from >> searching the mailing list archives, no work on such an auto-vectorizer >> seems to be currently in progress. > > Hi Andreas, >