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Hey guys, I'm using the dolphin emulator from time and the stable version works reasonable well with current nvidia cards and nouveau.The git version got an overhaul however and now uses opengl3 and ubos (without ubo it uses a glUniform fallback). The ubo support works with the blobs. There are probably a few bugs with ubo one might be because of ubo access+offset (glBindBufferRange) as this

> cmpq %rbx, %r14 > jne .LBB0_1 > > LLVM can perform compare-jump fusion, it already does in certain cases, but > not in the case above. We can remove the cmp above if we were to perform > the following transformation: Do you mean branch-fusion (https://en.wikichip.org/wiki/macro-operation_fusion)? Is there any more limitation why these two or not fused? > -----Original

Oh and just for the sake of completeness the problem occurs in the form of wrongly rendered textures in front of a black screen. The objects only are fusible for a second and them disappear sometimes they appear at the wrong position or are rotated. If you compile dolphin with GLEW_ARB_uniform_buffer_object replaced with false in Source/Plugins/Plugin_VideoOGL/Src/Render.cpp the problems won't occur. I tried testing it with other cards but they got...

...; > Patrick > > > On Thu, Jul 11, 2013 at 2:21 PM, Thomas Schneider <maxmusterm at gmail.com>wrote: > >> Oh and just for the sake of completeness the problem occurs in the form >> of wrongly rendered textures in front of a black screen. The objects only >> are fusible for a second and them disappear sometimes they appear at the >> wrong position or are rotated. >> If you compile dolphin with GLEW_ARB_uniform_buffer_object replaced with >> false in Source/Plugins/Plugin_VideoOGL/Src/Render.cpp the problems won't >> occur. >> I t...

...> >> On Thu, Jul 11, 2013 at 2:21 PM, Thomas Schneider <maxmusterm at gmail.com>wrote: >> >>> Oh and just for the sake of completeness the problem occurs in the form >>> of wrongly rendered textures in front of a black screen. The objects only >>> are fusible for a second and them disappear sometimes they appear at the >>> wrong position or are rotated. >>> If you compile dolphin with GLEW_ARB_uniform_buffer_object replaced with >>> false in Source/Plugins/Plugin_VideoOGL/Src/Render.cpp the problems won't >>> occu...

I am attempting to implement a minor loop strength reduction optimization for targets that support compare and jump fusion, specifically TTI::canMacroFuseCmp(). My approach might be wrong; however, I am soliciting the idea for feedback, so that I can implement this correctly. My plan is to add a Supplemental LSR formula to LoopStrengthReduce.cpp that optimizes the following case, but perhaps