Would it be better to have is_interstage=0 rather than a double negative? On Sat, 3 Oct 2015 10:32 am Gregory Hainaut <gregory.hain...@gmail.com> wrote:
> > In short, SSO allow to match by name but you can't make any hypothesis > on the > > previous/next stage. Therefore you must consider all inputs and output as > > actives. > > New version based on Ian's feedbacks. > * Real interstage variables of the program are still optimized > * Both output and input of the program remains active > * An old bug still remains if name and explicit location rendezvous are > mixed > > Commits decription: > 1/ add a not_interstage parameter that will be 1 when variable is either an > input of output of the program. I didn't know where to put the > ir_set_not_interstage_io > function. Maybe it can be moved in linker.cpp. > 2/ Set the interstage parameter based on the shader position in the > pipeline > program. Potentially can be squased with the previous one. > 3/ Don't do deadcode removal of not_interstage variable with the exception > of the built-in varyings because they don't impact location of others > variables > > Gregory Hainaut (4): > glsl IR: add not_interstage attribute to ir_variable > glsl link: annotate not_interstage attribute of the ir_var after link > phase > glsl IR: only allow optimization of interstage variable > allow compilation on my system > > configure.ac | 6 ++++-- > src/glsl/ir.h | 6 ++++++ > src/glsl/ir_optimization.h | 2 ++ > src/glsl/linker.cpp | 47 > ++++++++++++++++++++++++++++++++++++++++++++++ > src/glsl/opt_dead_code.cpp | 37 ++++++++++++++++++++++++++++++++++++ > 5 files changed, 96 insertions(+), 2 deletions(-) > > -- > 2.1.4 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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