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* nir: implement lowering for fsin and fcosVasily Khoruzhick2019-05-071-0/+1
| | | | | | | | | | | | | Lower sin and cos using Nick's fast sin/cos approximation from https://web.archive.org/web/20180105155939/http://forum.devmaster.net/t/fast-and-accurate-sine-cosine/9648 It's suitable for GLES2, but it throws warnings in dEQP GLES3 precision tests. Reviewed-by: Connor Abbott <[email protected]> Reviewed-by: Qiang Yu <[email protected]> Tested-by: Qiang Yu <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]> Signed-off-by: Vasily Khoruzhick <[email protected]>
* nir/flrp: Add new lowering pass for flrp instructionsIan Romanick2019-05-061-0/+1
| | | | | | | | | | | | This pass will soon grow to include some optimizations that are difficult or impossible to implement correctly within nir_opt_algebraic. It also include the ability to generate strictly correct code which the current nir_opt_algebraic lowering lacks (though that could be changed). v2: Document the parameters to nir_lower_flrp. Rebase on top of 3766334923e ("compiler/nir: add lowering for 16-bit flrp") Reviewed-by: Matt Turner <[email protected]>
* nir: add int_to_float lowering passVasily Khoruzhick2019-05-071-0/+1
| | | | | | | | | | | | | This new pass lowers ints and bools to floats. It allows hardware that doesn't have native integers (e.g. Mali4x0) use the same code paths as modern hardware. It uses newly introduced pass to gather SSA types and should be used as late as possible. Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]> Signed-off-by: Vasily Khoruzhick <[email protected]>
* nir: Add a SSA type gathering passJason Ekstrand2019-05-041-0/+1
| | | | | | | | | | | | | | This new pass (which isn't even compile-tested) attempts to determine the ALU type of all the SSA values in a function impl. It takes a greedy approach and assigns intness or floatness to everything it thinks can possibly contain an int or a float. Some values will be labled as both int and float and some will be labled as neither and it is up to the caller to decide what to do with this information. However, for a "nice" shader where the original source contained no bit-casts and no implicit bit-casts were introduced by optimizations, there shouldn't be any overlap in the two sets save for the odd CSEd zero constant. Reviewed-by: Vasily Khoruzhick <[email protected]>
* nir: add pass to lower fb readsRob Clark2019-05-021-0/+1
| | | | | Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Kristian H. Kristensen <[email protected]>
* nir: add rcp(w) lowering for gl_FragCoordAndreas Baierl2019-04-291-0/+1
| | | | | | | | | | | | | | On some hardware (e.g. Mali400) the shader needs to apply some transformations for correct gl_FragCoord handling. The lowering actions look like the following in pseudocode: gl_FragCoord.xyz = gl_FragCoord_orig.xyz gl_FragCoord.w = 1.0 / gl_FragCoord_orig.w Add this lowering as a nir pass in preparation for using it in the driver. Signed-off-by: Andreas Baierl <[email protected]> Reviewed-by: Qiang Yu <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* nir: Add nir_lower_viewport_transformAlyssa Rosenzweig2019-04-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | On Mali hardware (supported by Panfrost and Lima), the fixed-function transformation from world-space to screen-space coordinates is done in the vertex shader prior to writing out the gl_Position varying, rather than in dedicated hardware. This commit adds a shared NIR pass for implementing coordinate transformation and lowering gl_Position writes into screen-space gl_Position writes. v2: Run directly on derefs before io/vars are lowered to cleanup the code substantially. Thank you to Qiang for this suggestion! v3: Bikeshed continues. v4: Add to Makefile.sources (per Jason's comment). Bikeshed comment. Ian and Qiang's reviews are from v3, but no real functional changes from v4. Rob's review is from v4. Signed-off-by: Alyssa Rosenzweig <[email protected]> Suggested-by: Qiang Yu <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Qiang Yu <[email protected]> Reviewed-by: Rob Clark <[email protected]>
* nir: Add a pass for selectively lowering variables to scratch spaceJason Ekstrand2019-04-121-0/+1
| | | | | | | | | | This commit adds new nir_load/store_scratch opcodes which read and write a virtual scratch space. It's up to the back-end to figure out what to do with it and where to put the actual scratch data. v2: Drop const_index comments (by anholt) Reviewed-by: Eric Anholt <[email protected]>
* nir: Get rid of global registersJason Ekstrand2019-04-091-1/+0
| | | | | | | | | We have a pass to lower global registers to locals and many drivers dutifully call it. However, no one ever creates a global register ever so it's all dead code. It's time we bury it. Acked-by: Karol Herbst <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add partial redundancy elimination for comparesIan Romanick2019-03-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This pass attempts to dectect code sequences like if (x < y) { z = y - x; ... } and replace them with sequences like t = x - y; if (t < 0) { z = -t; ... } On architectures where the subtract can generate the flags used by the if-statement, this saves an instruction. It's also possible that moving an instruction out of the if-statement will allow nir_opt_peephole_select to convert the whole thing to a bcsel. Currently only floating point compares and adds are supported. Adding support for integer will be a challenge due to integer overflow. There are a couple possible solutions, but they may not apply to all architectures. v2: Fix a typo in the commit message and a couple typos in comments. Fix possible NULL pointer deref from result of push_block(). Add missing (-A + B) case. Suggested by Caio. v3: Fix is_not_const_zero to work correctly with types other than nir_type_float32. Suggested by Ken. v4: Add some comments explaining how this works. Suggested by Ken. Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add nir_const_value_negative_equalIan Romanick2019-03-281-0/+12
| | | | | | | v2: Rebase on 1-bit Boolean changes. Reviewed-by: Thomas Helland <[email protected]> [v1] Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Add a lowering pass for non-uniform resource accessJason Ekstrand2019-03-251-0/+1
| | | | Reviewed-by: Bas Nieuwenhuizen <[email protected]>
* spirv,nir: lower frexp_exp/frexp_sig inside a new NIR passSamuel Pitoiset2019-03-221-0/+1
| | | | | | | | | | This lowering isn't needed for RADV because AMDGCN has two instructions. It will be disabled for RADV in an upcoming series. While we are at it, factorize a little bit. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a new pass to lower array dereferences on vectorsJason Ekstrand2019-03-151-0/+1
| | | | | | | | This pass was originally written for lowering TCS output reads and writes but it is also applicable just about anything including UBOs, SSBOs, and shared variables. Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
* nir: Add a pass to combine store_derefs to same vectorCaio Marcelo de Oliveira Filho2019-03-131-0/+1
| | | | | | | | | v2: (all from Jason) Reuse existing function for the end of the block combinations. Check the SSA values are coming from the right place in tests. Document the case when the store to array_deref is reused. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a pass for lowering IO back to vector when possibleJason Ekstrand2019-03-121-0/+1
| | | | | | | | This pass tries to turn scalar and array-of-scalar IO variables into vector IO variables whenever possible. Reviewed-by: Connor Abbott <[email protected]> Cc: "19.0" <[email protected]>
* nir: Add a stripping pass for improved cacheabilityConnor Abbott2019-03-121-0/+1
| | | | | | | | | | | | | | | | Oftentimes various nir shaders after lowering will be the same, or almost the same. For example, this can happen when the same shader is linked with different shaders to form different pipelines and cross-stage optimizations don't kick in to change it. We want to avoid running the backend twice on these shaders. We were already doing this with radeonsi, but we were storing a few extra pieces of information that made this much less effective compared to TGSI. The worse offender by far was the program name, which caused most of the cache misses. This pass strips out these pieces of information, controlled by the NIR_STRIP debug env variable. Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/spirv: initial handling of OpenCL.std extension opcodesKarol Herbst2019-03-051-0/+2
| | | | | | | | | | | | | | | | | | Not complete, mostly just adding things as I encounter them in CTS. But not getting far enough yet to hit most of the OpenCL.std instructions. Anyway, this is better than nothing and covers the most common builtins. v2: add hadd proof from Jason move some of the lowering into opt_algebraic and create new nir opcodes simplify nextafter lowering fix normalize lowering for inf rework upsample to use nir_pack_bits add missing files to build systems v3: split lines of iadd/sub_sat expressions Signed-off-by: Karol Herbst <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Move nir_lower_uniforms_to_ubo to compiler/nir.Timur Kristóf2019-03-051-0/+1
| | | | | | | | | | | | The nir_lower_uniforms_to_ubo function is useful outside of mesa/state_tracker, and in fact is needed to produce NIR for drivers that have the PIPE_CAP_PACKED_UNIFORMS capability. Signed-Off-By: Timur Kristóf <[email protected]> Tested-by: Andre Heider <[email protected]> Tested-by: Rob Clark <[email protected]> Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* nir: Add a bool to float32 lowering passJason Ekstrand2019-01-141-0/+1
| | | | | | | | | | | From @jekstrand's nir-1-bit-bool branch, with improved ior/inot lowering. ior: fmax instead of fadd allows removing the fsat. inot: seq(x, 0) can be better than fsub(1, x). On a2xx, it works better with the scalar instruction set. Reviewed-by: Jonathan Marek <[email protected]>
* nir: Add a bool to int32 lowering passJason Ekstrand2018-12-161-0/+1
| | | | | | | | We also enable it in all of the NIR drivers. Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Bas Nieuwenhuizen <[email protected]> Tested-by: Bas Nieuwenhuizen <[email protected]>
* nir: Add a pass for lowering integer division by constantsJason Ekstrand2018-12-131-0/+1
| | | | | | | | | | | It's a reasonably well-known fact in the world of compilers that integer divisions by constants can be replaced by a multiply, an add, and some shifts. This commit adds such an optimization to NIR for easiest case of udiv. Other division operations will be added in following commits. In order to provide some additional driver control, the pass takes a minimum bit size to optimize. Reviewed-by: Ian Romanick [email protected]
* meson: Add nir_algebraic_parser_test to suitesDylan Baker2018-12-101-0/+1
| | | | | | | | Just to make it easier to run a nir tests together. Fixes: a0ae12ca91a45f81897e774019cde9bd081f03a0 ("nir/algebraic: Add unit tests for bitsize validation") Reviewed-by: Eric Engestrom <[email protected]>
* nir/algebraic: Add unit tests for bitsize validationConnor Abbott2018-12-051-0/+7
| | | | | | | | | The non-failure path can be tested by just compiling mesa and then testing it, but the failure paths won't be hit unless you make a mistake, so it's best to test them with some unit tests. Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* meson: Add tests to suitesDylan Baker2018-11-201-2/+5
| | | | | | | | | | | | | | | | Meson test has a concepts of suites, which allow tests to be grouped together. This allows for a subtest of tests to be run only (say only the tests for nir). A test can be added to more than one suite, but for the most part I've only added a test to a single suite, though I've added a compiler group that includes nir, glsl, and glcpp tests. To use this you'll need to invoke meson test directly, instead of ninja test (which always runs all targets). it can be invoked as: `meson test -C builddir --suite $suitename` (meson test has addition options that are pretty useful). Tested-By: Gert Wollny <[email protected]> Acked-by: Eric Engestrom <[email protected]>
* nir: Add a pass for gathering transform feedback infoJason Ekstrand2018-10-291-0/+2
| | | | | | | This is different from the GL_ARB_spirv pass because it generates a much simpler data structure that isn't tied to OpenGL and mtypes.h. Reviewed-by: Samuel Pitoiset <[email protected]>
* nir: Separate dead write removal into its own passCaio Marcelo de Oliveira Filho2018-10-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of doing this as part of the existing copy_prop_vars pass. Separation makes easier to expand the scope of both passes to be more than per-block. For copy propagation, the information about valid copies comes from previous instructions; while the dead write removal depends on information from later instructions ("have any instruction used this deref before overwrite it?"). Also change the tests to use this pass (instead of copy prop vars). Note that the disabled tests continue to fail, since the standalone pass is still per-block. v2: Remove entries from dynarray instead of marking items as deleted. Use foreach_reverse. (Caio) (all from Jason) Do not cache nir_deref_path. Not worthy for this patch. Clear unused writes when hitting a call instruction. Clean up enumeration of modes for barriers. Move metadata calls to the inner function. v3: For copies, use the vector length to calculate the mask. (all from Jason) Use nir_component_mask_t when applicable. Rename functions for clarity. Consider local vars used by a call to be conservative (SPIR-V has such cases). Comment and assert the assumption that stores and copies are always to a deref that ends with a vector or scalar. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add test file for vars related passesCaio Marcelo de Oliveira Filho2018-10-151-0/+11
| | | | | | | | | | | | Add basic helpers for doing tests on the vars related optimization passes. The main goal is to lower the barrier to create tests during development and debugging of the passes. Full coverage is not a requirement. v2: Make find_next_intrinsic() skip blocks before 'after'. (Jason) Move nir_imm_ivec2() to nir_builder.h. (Jason) Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add an array copy optimizationJason Ekstrand2018-08-231-0/+1
| | | | | | | | | | | | This peephole optimization looks for a series of load/store_deref or copy_deref instructions that copy an array from one variable to another and turns it into a copy_deref that copies the entire array. The pattern it looks for is extremely specific but it's good enough to pick up on the input array copies in DXVK and should also be able to pick up the sequence generated by spirv_to_nir for a OpLoad of a large composite followed by OpStore. It can always be improved later if needed. Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
* nir: Add a structure splitting passJason Ekstrand2018-08-231-0/+1
| | | | | | | | | | | This pass doesn't really do much now because nir_lower_vars_to_ssa can already see through structures and considers them to be "split". This pass exists to help other passes more easily see through structure variables. If a back-end does implement arrays using scratch or indirects on registers, having more smaller arrays is likely to have better memory efficiency. Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
* meson: Build with Python 3Mathieu Bridon2018-08-101-7/+7
| | | | | | | | | | | | Now that all the build scripts are compatible with both Python 2 and 3, we can flip the switch and tell Meson to use the latter. Since Meson already depends on Python 3 anyway, this means we don't need two different Python stacks to build Mesa. Signed-off-by: Mathieu Bridon <[email protected]> Reviewed-by: Eric Engestrom <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* nir/meson: fix c vs cpp args for nir testDylan Baker2018-08-011-1/+1
| | | | | | | Fixes: d1992255bb29054fa51763376d125183a9f602f3 ("meson: Add build Intel "anv" vulkan driver") Signed-off-by: Dylan Baker <[email protected]> Reviewed-by: Eric Engestrom <[email protected]>
* nir: add builtin builderKarol Herbst2018-07-241-0/+2
| | | | | | | | | | | also move some of the GLSL builtins over we will need for implementing some OpenCL builtins v2: replace NIR_IMM_FP by nir_imm_floatN_t in ported code fix up changes caused by swizzle rework Reviewed-by: Jason Ekstrand <[email protected]> Signed-off-by: Karol Herbst <[email protected]>
* nir: Add a large constants optimization passJason Ekstrand2018-07-021-0/+1
| | | | | | | | | | | | | | | | 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: 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: Add a concept of per-member structs and a lowering passJason Ekstrand2018-06-221-0/+1
| | | | | | | | | | | | | 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: Add a deref path helper structJason Ekstrand2018-06-221-0/+1
| | | | | | | | | | | | | | | | | | This commit introduces a new nir_deref.h header for helpers that are less common and really only needed by a few heavy-duty passes. In this header is a new struct for representing a full deref path which can be walked in either direction. v2 (Jason Ekstrand): - Assert that deref != NULL (Caio) - Fill _short_path with 0xdeadbeef in debug builds when not used (Caio) - Make nir_deref_path a typedef (Rob) 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/+1
| | | | | | | | | | | 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 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: Add an ALU lowering pass for mul_high.Eric Anholt2018-06-061-0/+1
| | | | | | | | 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 the start of a format conversion helper headerJason Ekstrand2018-05-091-0/+1
| | | | Reviewed-by: Topi Pohjolainen <[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/+1
| | | | | | | | | | | | | | | | 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]>
* nir: add missing dependency in meson.buildRob Clark2018-05-021-1/+1
| | | | | | | | | | nir_builder_opcodes.h also depends on nir_intrinsics.py for generating the system-value builders. Reported-by: Christoph Haag <[email protected]> Reported-by: Kenneth Graunke <[email protected]> Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: move GL specific passes to src/compiler/glslTimothy Arceri2018-05-011-3/+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/spirv: add gl_spirv_validation methodAlejandro Piñeiro2018-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARB_gl_spirv adds the ability to use SPIR-V binaries, and a new method, glSpecializeShader. Here we add a new function to do the validation for this function: From OpenGL 4.6 spec, section 7.2.1" "Shader Specialization", error table: INVALID_VALUE is generated if <pEntryPoint> does not name a valid entry point for <shader>. INVALID_VALUE is generated if any element of <pConstantIndex> refers to a specialization constant that does not exist in the shader module contained in <shader>."" v2: rebase update (spirv_to_nir options added, changes on the warning logging, and others) v3: include passing options on common initialization, doesn't call setjmp on common_initialization v4: (after Jason comments): * Rename common_initialization to vtn_builder_create * Move validation method and their helpers to own source file. * Create own handle_constant_decoration_cb instead of reuse existing one v5: put vtn_build_create refactoring to their own patch (Jason) v6: update after vtn_builder_create method renamed, add explanatory comment, tweak existing comment and commit message (Timothy)
* spirv: Move SPIR-V building to Makefile.spirv.am and spirv/meson.buildIan Romanick2018-03-291-15/+0
| | | | | | | | | | | | | Future changes will add generated files used only from src/compiler/glsl. These can't be built from Makefile.nir.am, and we can't move all the rules from Makefile.nir.am to Makefile.spirv.am (and it would be silly anyway). v2: Do it for meson too. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Eric Engestrom <[email protected]> (the meson bits) Reviewed-by: Alejandro Piñeiro <[email protected]> (the automake bits)
* nir: mako all the intrinsicsRob Clark2018-03-271-4/+20
| | | | | | | | | | | | | | | | | | | | | | | 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]>
* nir: autotools, meson: add GLSL.ext.AMD.h in the files listJuan A. Suarez Romero2018-03-221-0/+1
| | | | Reviewed-by: Emil Velikov <[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]>
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