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* nir: Add a large constants optimization passJason Ekstrand2018-07-023-0/+310
| | | | | | | | | | | | | | | | This pass searches for reasonably large local variables which can be statically proven to be constant and moves them into shader constant data. This is especially useful when large tables are baked into the shader source code because they can be moved into a UBO by the driver to reduce register pressure and make indirect access cheaper. v2 (Jason Ekstrand): - Use a size/align function to ensure we get the right alignments - Use the newly added deref offset helpers Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add a concept of constant data associated with a shaderJason Ekstrand2018-07-025-0/+30
| | | | | | | | | | | | | | | | | | | This commit adds a concept to NIR of having a blob of constant data associated with a shader. Instead of being a UBO or uniform that can be manipulated by the client, this constant data considered part of the shader and remains constant across all invocations of the given shader until the end of time. To access this constant data from the shader, we add a new load_constant intrinsic. The intention is that drivers will eventually lower load_constant intrinsics to load_ubo, load_uniform, or something similar. Constant data will be used by the optimization pass in the next commit but this concept may also be useful for OpenCL. v2 (Jason Ekstrand): - Rename num_constants to constant_data_size (anholt) Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/deref: Add helpers for getting offsetsJason Ekstrand2018-07-022-0/+95
| | | | | | | | | | | | | These are very similar to the related function in nir_lower_io except that they don't handle per-vertex or packed things (that could be added, in theory) and they take a more detailed size/align function pointer. One day, we should consider switching nir_lower_io over to using the more detailed size/align functions and then we could make it use these helpers instead of having its own. Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add a deref_instr_has_indirect helperJason Ekstrand2018-07-022-0/+20
| | | | | | Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: fix selection of loop terminator when two or more have the same limitTimothy Arceri2018-06-302-4/+4
| | | | | | | | | | | | | | | | | We need to add loop terminators to the list in the order we come across them otherwise if two or more have the same exit condition we will select that last one rather than the first one even though its unreachable. This fix is for simple unrolls where we only have a single exit point. When unrolling these type of loops the unreachable terminators and their unreachable branch are removed prior to unrolling. Because of the logic change we also switch some list access in the complex unrolling logic to avoid breakage. Fixes: 6772a17acc8e ("nir: Add a loop analysis pass") Reviewed-by: Jason Ekstrand <[email protected]>
* nir/opt_if: Remove unneeded phis if we make progressJason Ekstrand2018-06-263-3/+11
| | | | | | | | | | Now that SSA values can be derefs and they have special rules, we have to be a bit more careful about our LCSSA phis. In particular, we need to clean up in case LCSSA ended up creating a phi node for a deref. This fixes validation issues with some Vulkan CTS tests with the new deref instructions. Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]>
* nir/lower_system_values: Assert/assume direct var derefsJason Ekstrand2018-06-221-4/+13
| | | | | | | | | | | | | System values are never arrays or structs so we can assume a direct var deref. This simplifies things a bit and prevents us from accidentally throwing away an array index. Suggested-by: Caio Marcelo de Oliveira Filho <[email protected]> Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove old-school deref chain supportJason Ekstrand2018-06-2238-1354/+6
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from analyze_loopsJason Ekstrand2018-06-221-56/+0
| | | | | | | | | | Note that this patch needs to come late in the series since this pass can be run after any pass that damages nir_metadata_loop_analysis. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: promote intrinsic_get_var() to helperRob Clark2018-06-222-10/+10
| | | | | | | | | | Useful in a few other places.. let's not copy-pasta Signed-off-by: Rob Clark <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Rework lower_locals_to_regs to use deref instructionsJason Ekstrand2018-06-221-100/+88
| | | | | | | | | | This completely reworks the pass to support deref instructions and delete support for old deref chains Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Rework opt_copy_prop_vars to use deref instructionsJason Ekstrand2018-06-221-170/+146
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/copy_prop_vars: Re-order some logic in compare_derefsJason Ekstrand2018-06-221-8/+8
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from split_per_member_structsJason Ekstrand2018-06-221-83/+3
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from opt_undefJason Ekstrand2018-06-221-1/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from split_var_copiesJason Ekstrand2018-06-221-210/+6
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from dead_variablesJason Ekstrand2018-06-221-83/+3
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from propagate_invariantJason Ekstrand2018-06-221-11/+3
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_var_copiesJason Ekstrand2018-06-221-132/+8
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_drawpixelsJason Ekstrand2018-06-221-13/+5
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from opt_peephole_selectJason Ekstrand2018-06-221-11/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_texJason Ekstrand2018-06-221-6/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_wpos_ytransformJason Ekstrand2018-06-221-36/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_wpos_centerJason Ekstrand2018-06-221-11/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_system_valuesJason Ekstrand2018-06-221-13/+11
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from remove_unused_varyingsJason Ekstrand2018-06-221-7/+6
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Delete lower_io_typesJason Ekstrand2018-06-223-180/+0
| | | | | | | | | | It's only used by the ir3 stand-alone compiler and Rob said we could delete it. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_phis_to_scalarJason Ekstrand2018-06-221-7/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Convert lower_io to deref instructionsJason Ekstrand2018-06-221-68/+37
| | | | | | | | | | | This deletes support for _var intrinsics and legacy deref chains in favor of deref instructions. The internals are also reworked a bit to use deref instructions directly. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/lower_io: Convert atomic lowering to deref instructionsJason Ekstrand2018-06-221-23/+27
| | | | | | | | | | | No one is currently using so we can make this change irrespective of driver. We may use it again in i965 so it's best to pretend to keep it working. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_global_vars_to_localJason Ekstrand2018-06-221-18/+4
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_clamp_color_outputsJason Ekstrand2018-06-221-3/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_alpha_testJason Ekstrand2018-06-221-3/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_clip_cull_distance_arraysJason Ekstrand2018-06-221-52/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove deref chain support from lower_indirect_derefsJason Ekstrand2018-06-221-161/+2
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Rework gather_info to entirely use deref instructionsJason Ekstrand2018-06-221-28/+14
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/vars_to_ssa: Rework to entirely use deref instructionsJason Ekstrand2018-06-221-184/+152
| | | | | | | | | | | This commit reworks nir_lower_vars_to_ssa to use deref instructions and deref paths internally instead of deref chains. We also drop support for the old load/store/copy_var intrinsics. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/vars_to_ssa: Add an is_direct field to deref_nodeJason Ekstrand2018-06-221-16/+25
| | | | | | | | | | This makes us build the is_direct parameter as the nodes are constructed rather than as we walk the chain. This will be useful later. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: convert lower_io_arrays_to_elements to deref instructionsRob Clark2018-06-221-79/+81
| | | | | | | | Signed-off-by: Rob Clark <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: convert lower_io_to_scalar to deref instructionsRob Clark2018-06-221-46/+46
| | | | | | | | Signed-off-by: Rob Clark <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Use deref instructions in lower_constant_initializersJason Ekstrand2018-06-223-84/+39
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/builder: Use deref instructions for load/store/copy_varJason Ekstrand2018-06-221-24/+4
| | | | | | | Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir,spirv: Rework function callsJason Ekstrand2018-06-2211-377/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | This commit completely reworks function calls in NIR. Instead of having a set of variables for the parameters and return value, nir_call_instr now has simply has a number of sources which get mapped to load_param intrinsics inside the functions. It's up to the client API to build an ABI on top of that. In SPIR-V, out parameters are handled by passing the result of a deref through as an SSA value and storing to it. This virtue of this approach can be seen by how much it allows us to delete from core NIR. In particular, nir_inline_functions gets halved and goes from a fairly difficult pass to understand in detail to almost trivial. It also simplifies spirv_to_nir somewhat because NIR functions never were a good fit for SPIR-V. Unfortunately, there is no good way to do this without a mega-commit. Core NIR and SPIR-V have to be changed at the same time. This also requires changes to anv and radv because nir_inline_functions couldn't handle deref instructions before this change and can't work without them after this change. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add a concept of per-member structs and a lowering passJason Ekstrand2018-06-226-0/+330
| | | | | | | | | | | | | This adds a concept of "members" to a variable with an interface type. It allows you to specify the full variable data for each member of the interface instead of once for the variable. We also add a lowering pass to lower those variables to a sequence of variables and rewrite all the derefs accordingly. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/lower_tex: Always copy deref and offset sourcesJason Ekstrand2018-06-221-11/+32
| | | | | | | | | | | This should make nir_lower_tex properly handle deref instructions as well as make it more correct when texture arrays are used and it's called after lowering samplers to binding table indices. Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Support deref instructions in opt_undefJason Ekstrand2018-06-221-4/+7
| | | | | | | | Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Consider deref instructions in opt_peephole_selectJason Ekstrand2018-06-221-2/+11
| | | | | | | | Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Consider deref instructions in lower_phis_to_scalarJason Ekstrand2018-06-221-2/+9
| | | | | | | | Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Support deref instructions in lower_drawpixelsJason Ekstrand2018-06-221-6/+14
| | | | | | | | Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Support deref instructions in lower_clamp_color_outputsJason Ekstrand2018-06-221-4/+6
| | | | | | | | Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Dave Airlie <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
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