search for: pr11936

...cessary for loads and stores > > - Is scalar-to-vector free? > > I think that this will be a really important API, but I strongly advocate that you model this after TargetLoweringInfo instead of TargetData. First, TargetData isn't actually a target API (it should be fixed, I filed PR11936 to track this). Second, targets will have to implement imperative code to return precise answers to questions. For example, you'll want something like "what is the cost of a shuffle with this mask" which will be extremely target specific, will depend on what CPU subfeatures are enab...

...loads and stores >>> - Is scalar-to-vector free? >> >> I think that this will be a really important API, but I strongly advocate that you model this after TargetLoweringInfo instead of TargetData. First, TargetData isn't actually a target API (it should be fixed, I filed PR11936 to track this). Second, targets will have to implement imperative code to return precise answers to questions. For example, you'll want something like "what is the cost of a shuffle with this mask" which will be extremely target specific, will depend on what CPU subfeatures are enab...

...alignment is necessary for loads and stores > - Is scalar-to-vector free? I think that this will be a really important API, but I strongly advocate that you model this after TargetLoweringInfo instead of TargetData. First, TargetData isn't actually a target API (it should be fixed, I filed PR11936 to track this). Second, targets will have to implement imperative code to return precise answers to questions. For example, you'll want something like "what is the cost of a shuffle with this mask" which will be extremely target specific, will depend on what CPU subfeatures are enab...

...es > >>> - Is scalar-to-vector free? > >> > >> I think that this will be a really important API, but I strongly advocate that you model this after TargetLoweringInfo instead of TargetData. First, TargetData isn't actually a target API (it should be fixed, I filed PR11936 to track this). Second, targets will have to implement imperative code to return precise answers to questions. For example, you'll want something like "what is the cost of a shuffle with this mask" which will be extremely target specific, will depend on what CPU subfeatures are enab...

...es > >>> - Is scalar-to-vector free? > >> > >> I think that this will be a really important API, but I strongly advocate that you model this after TargetLoweringInfo instead of TargetData. First, TargetData isn't actually a target API (it should be fixed, I filed PR11936 to track this). Second, targets will have to implement imperative code to return precise answers to questions. For example, you'll want something like "what is the cost of a shuffle with this mask" which will be extremely target specific, will depend on what CPU subfeatures are enab...

As some of you may know, I committed my basic-block autovectorization pass a few days ago. I encourage anyone interested to try it out (pass -vectorize to opt or -mllvm -vectorize to clang) and provide feedback. Especially in combination with -unroll-allow-partial, I have observed some significant benchmark speedups, but, I have also observed some significant slowdowns. I would like to share my