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* i965: Combine both gl_PatchVerticesIn lowering passes.Kenneth Graunke2018-07-261-1/+2
| | | | | | | | | | | | | | | | | | Until now, we had separate passes for lowering gl_PatchVerticesIn to a statically known constant (for TES inputs when linked against a TCS), and a uniform in the other cases. Annoyingly, one had to be run before nir_lower_system_values, and the other afterward. This simplified the passes, but made life painful for the callers. This patch combines both into a single pass. If you give it a non-zero static count, it uses that. If you give it Mesa state slots, it turns it back into a built-in uniform. Otherwise, it does nothing. This also moves the i965 uniform lowering out to shared code. v2: Make token arrays const. Reviewed-by: Eric Anholt <[email protected]>
* nir: Add flipping of gl_PointCoord.y in nir_lower_wpos_ytransform.Eric Anholt2018-07-261-0/+3
| | | | | | | This is controlled by a new nir_shader_compiler_options flag, and fixes dEQP-GLES3.functional.shaders.builtin_variable.pointcoord on V3D. Reviewed-by: Kenneth Graunke <[email protected]>
* nir: add lowering for gl_HelperInvocationRob Clark2018-07-181-0/+14
| | | | | | | | | v2: reword comment about lower_helper_invocations to be more clear that it might not work on all hardware v3: add special variant of load_sample_id which does not imply per- sample shading Signed-off-by: Rob Clark <[email protected]>
* nir: prepare for bumping up max components to 16Karol Herbst2018-07-171-16/+18
| | | | | | | | | | | OpenCL knows vector of size 8 and 16. v2: rebased on master (nir_swizzle rework) rework more declarations with nir_component_mask_t adjust print_var_decl Reviewed-by: Jason Ekstrand <[email protected]> Signed-off-by: Karol Herbst <[email protected]>
* nir: Add a large constants optimization passJason Ekstrand2018-07-021-0/+4
| | | | | | | | | | | | | | | | 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 Ekstrand2018-07-021-0/+8
| | | | | | | | | | | | | | | | | | | 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: Add a deref_instr_has_indirect helperJason Ekstrand2018-07-021-0/+2
| | | | | | Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir/opt_if: Remove unneeded phis if we make progressJason Ekstrand2018-06-261-0/+1
| | | | | | | | | | 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: Remove old-school deref chain supportJason Ekstrand2018-06-221-112/+0
| | | | | | | 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 Clark2018-06-221-0/+6
| | | | | | | | | | 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: Delete lower_io_typesJason Ekstrand2018-06-221-1/+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: Use deref instructions in lower_constant_initializersJason Ekstrand2018-06-221-3/+0
| | | | | | | 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 Ekstrand2018-06-221-23/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | 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 Ekstrand2018-06-221-0/+12
| | | | | | | | | | | | | 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: Support deref instructions in lower_var_copiesJason Ekstrand2018-06-221-0/+3
| | | | | | | | 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: Add a pass for fixing deref modesJason Ekstrand2018-06-221-0/+2
| | | | | | | | | | | This will be needed by anything which changes variable modes without rewriting derefs. 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: add deref lowering sanity checkingRob Clark2018-06-221-0/+12
| | | | | | | | | | | | | This will be removed at the end of the transition, but add some tracking plus asserts to help ensure that lowering passes are called at the correct point (pre or post deref instruction lowering) as passes are converted and the point where lower_deref_instrs() is called is moved. 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/deref: Add some deref cleanup functionsJason Ekstrand2018-06-221-0/+4
| | | | | | | | | | | Sometimes it's useful for a pass to be able to clean up its own derefs instead of waiting for DCE. This little helper makes it very easy. 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: Add helpers for working with deref instructionsJason Ekstrand2018-06-221-0/+37
| | | | | | | | | | | This commit adds a pass for lowering deref instructions to deref chains as well as some smaller helpers to ease the transition. 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: Add deref sources to texture instructionsJason Ekstrand2018-06-221-0/+2
| | | | | | | | 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: Add _deref versions of all of the _var intrinsicsJason Ekstrand2018-06-221-1/+1
| | | | | | | | 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: Add a deref instruction typeJason Ekstrand2018-06-221-1/+57
| | | | | | | | | | | | This commit adds a new instruction type to NIR for handling derefs. Nothing uses it yet but this adds the data structure as well as all of the code to validate, print, clone, and [de]serialize them. 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: Add explicit_binding to nir_variableNeil Roberts2018-06-211-0/+5
| | | | | | | This is copied from the corresponding value in ir_variable. The intention is to eventually use it in a pure-NIR linker. Reviewed-by: Timothy Arceri <[email protected]>
* nir: add pass to move load_constRob Clark2018-06-191-0/+1
| | | | | | | | | | | | Run this pass late (after opt loop) to move load_const instructions back into the basic blocks which use the result, in cases where a load_const is only consumed in a single block. This helps reduce register usage in cases where the backend driver cannot lower the load_const to a uniform. Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Document a couple instances of parent_instrIan Romanick2018-06-151-0/+2
| | | | | | | | | | | | | | nir_ssa_def::parent_instr and nir_src::parent_instr have the same name, but they mean really different things. I choose to save the next person the hour+ that I just spent figuring that out. Even now that I know, I doubt I'd notice in code review that someone typed foo->parent_instr when they actually meant foo->ssa->parent_instr. v2: Minor wording tweak in nir_ssa_def::parent_instr. Suggested by Jason. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add lowering for nir_op_bit_count.Eric Anholt2018-06-061-0/+2
| | | | | | | | | This is basically the same as the GLSL lowering path. v2: Fix typo in the link Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add lowering for nir_op_bitfield_reverse.Eric Anholt2018-06-061-0/+2
| | | | | | | This is basically the same as the GLSL lowering path. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add an ALU lowering pass for mul_high.Eric Anholt2018-06-061-0/+3
| | | | | | | | This is based on the glsl/lower_instructions.cpp implementation, but should be much more readable. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add lowering for find_lsb.Eric Anholt2018-06-061-0/+2
| | | | | | | There is a fairly simple relation to turn this into ufind_msb. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add lowering for ifind_msb to ufind_msb.Eric Anholt2018-06-061-0/+2
| | | | | | | | ufind_msb is easily expressed in terms of clz, and we can reduce ifind_msb to that. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add lowering from ibitfield_extract/ubitfield_extract to shifts.Eric Anholt2018-06-061-0/+3
| | | | | | | | V3D doesn't have opcodes for ibfe/ubfe, so we need to lower similarly to glsl/lower_instructions.cpp. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Add lowering for bitfieldInsert without using bfi.Eric Anholt2018-06-061-0/+5
| | | | | | | | | | | If you don't have HW to do bfi, then lowering bitfieldInsert to bfi makes things harder than keeping the "bits" argument around. This still uses bfm, but I've added the obvious lowering of bfm if you need it. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: make is_comparison() a non-static helper functionSamuel Pitoiset2018-06-041-0/+24
| | | | | | | | | Rename and change the prototype for consistency regarding nir_tex_instr_is_query(). This function will be used in the following patch. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: Implement optional b2f->iand loweringAlyssa Rosenzweig2018-05-181-0/+3
| | | | | | | | | | | | | | | | | | This pass is required by the Midgard compiler; our instruction set uses NIR-style booleans (~0 for true) but lacks a dedicated b2f instruction. Normally, this lowering pass would be implemented in a backend-specific algebraic pass, but this conflicts with the existing iand->b2f pass in nir_opt_algebraic.py, hanging the compiler. This patch thus makes the existing pass optional (default on -- all other backends should remain unaffected), adding an optional pass for lowering the opposite direction. v2: Defer lowering until late algebraic optimisations to allow optimising the b2f instruction itself. Signed-off-by: Alyssa Rosenzweig <[email protected]> Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]>
* compiler/lower_64bit_packing: rename the pass to be more genericIago Toral Quiroga2018-05-031-1/+1
| | | | | | It can do 32-bit packing too now. Reviewed-by: Jason Ekstrand <[email protected]>
* compiler/nir: add a lowering pass to convert the bit size of ALU operationsIago Toral Quiroga2018-05-031-0/+6
| | | | | | | | | | | | | | | | Not all bit-sizes may be supported natively in hardware for all operations. This pass allows drivers to lower such operations to a bit-size that is actually supported and then converts the result back to the original bit-size. Compiler backends control which operations and wich bit-sizes require the lowering through a callback function. v2: generalize this pass and make it available in NIR core (Rob, Jason) v3: remove some temporaries and reduce nesting in instruction loop using a continue statement (Jason) Reviewed-by: Jason Ekstrand <[email protected]>
* compiler/nir: Add conditional lowering for gl_BaseVertexAntia Puentes2018-05-021-0/+6
| | | | Reviewed-by: Jason Ekstrand <[email protected]>
* nir: move GL specific passes to src/compiler/glslTimothy Arceri2018-05-011-11/+0
| | | | | | | With this we should have no passes in src/compiler/nir with any dependencies on headers from core GL Mesa. Reviewed-by: Alejandro Piñeiro <[email protected]>
* nir: lower 64bit subgroup shuffle intrinsicsDaniel Schürmann2018-04-141-0/+1
| | | | Reviewed-by: Bas Nieuwenhuizen <[email protected]>
* nir+drivers: add helpers to get # of src/dest componentsRob Clark2018-04-031-0/+22
| | | | | | | | | Add helpers to get the number of src/dest components for an intrinsic, and update spots that were open-coding this logic to use the helpers instead. Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* nir: Return a cursor from nir_instr_removeJason Ekstrand2018-03-301-1/+15
| | | | | | | | Because nir_instr_remove is an inline wrapper around nir_instr_remove_v, the compiler should be able to tell that the return value is unused and not emit the extra code in most cases. Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add src/dest num_components helpersJason Ekstrand2018-03-301-0/+12
| | | | | | We already have these for bit_size Reviewed-by: Kenneth Graunke <[email protected]>
* nir: add bindless to nir dataTimothy Arceri2018-03-281-0/+6
| | | | | | Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Reviewed-by: Samuel Pitoiset <[email protected]>
* nir: mako all the intrinsicsRob Clark2018-03-271-9/+0
| | | | | | | | | | | | | | | | | | | | | | | I threatened to do this a long time ago.. I probably *should* have done it a long time ago when there where many fewer intrinsics. But the system of macro/#include magic for dealing with intrinsics is a bit annoying, and python has the nice property of optional fxn params, making it possible to define new intrinsics while ignoring parameters that are not applicable (and naming optional params). And not having to specify various array lengths explicitly is nice too. I think the end result makes it easier to add new intrinsics. v2: couple small fixes found with a test program to compare the old and new tables v3: misc comments, don't rely on capture=true for meson.build, get rid of system_values table to avoid return value of intrinsic() and *mostly* remove side-effects, add autotools build support v4: scons build Signed-off-by: Rob Clark <[email protected]> Acked-by: Dylan Baker <[email protected]> Acked-by: Jason Ekstrand <[email protected]>
* st/nir: fix atomic lowering for gallium driversTimothy Arceri2018-03-201-1/+2
| | | | | | | | | | | | | | | i965 and gallium handle the atomic buffer index differently. It was just by luck that the single piglit test for this was passing. For gallium we use the atomic binding so that we match the handling in st_bind_atomics(). On radeonsi this fixes the CTS test: KHR-GL43.shader_storage_buffer_object.advanced-write-fragment It also fixes tressfx hair rendering in Tomb Raider. Reviewed-by: Marek Olšák <[email protected]>
* st/nir/radeonsi: move nir_lower_uniforms_to_ubo() to the state trackerTimothy Arceri2018-03-201-1/+0
| | | | | | | | | | | | | This will only ever be used by gallium drivers so it probably doesn't belong in the nir toolkit. Also we want to pass it some non NIR things in the following patch. To avoid regressions we wrap the lowering calls that have been moved to st_glsl_to_nir with a quick hack so that they are only called for radeonsi, we will replace the hack with a check for uniform packing in a following patch. Reviewed-by: Marek Olšák <[email protected]>
* nir: add nir_opt_move_load_ubo() optimization passSamuel Pitoiset2018-03-161-0/+2
| | | | | | | | This pass moves load UBO operations just before their first use, loosely based on nir_opt_move_comparisons. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Timothy Arceri <[email protected]>
* compiler: int8/uint8 supportKarol Herbst2018-03-141-0/+4
| | | | | | | | | | OpenCL kernels also have int8/uint8. v2: remove changes in nir_search as Jason posted a patch for that Reviewed-by: Jason Ekstrand <[email protected]> Signed-off-by: Rob Clark <[email protected]> Signed-off-by: Karol Herbst <[email protected]>
* nir/subgroups: Add lowering for vote_ieq/vote_feq to a ballotJason Ekstrand2018-03-131-0/+1
| | | | | | | | | This is based heavily on 97f10934edf8ac, "ac/nir: Add vote_ieq/vote_feq lowering pass." from Bas Nieuwenhuizen. This version is a bit more general since it's in common code. It also properly handles NaN due to not flipping the comparison for floats. Reviewed-by: Bas Nieuwenhuizen <[email protected]>
* nir: Add a helper for getting binop identitiesJason Ekstrand2018-03-071-0/+2
| | | | | Reviewed-by: Lionel Landwerlin <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]>
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