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* nir: Add an optimization pass to remove trivial continuesJason Ekstrand2016-12-222-0/+139
| | | | Reviewed-by: Timothy Arceri <[email protected]>
* nir: Correctly handle blocks in cf_node_cf_tree_nextJason Ekstrand2016-12-221-1/+1
| | | | Reviewed-by: Timothy Arceri <[email protected]>
* nir: update nir_lower_returns to only predicate instructions when neededTimothy Arceri2016-12-231-6/+41
| | | | | | | | | | | | | | Unless an if statement contains nested returns we can simply add any following instructions to the branch without the return. V2: fix handling if_nested_return value when there is a sibling if/loop that doesn't contain a return. (Spotted by Ken) V3: - add a better comment to the new variable - remove instructions after if when both branches return Reviewed-by: Jason Ekstrand <[email protected]>
* nir: add a loop unrolling passTimothy Arceri2016-12-232-0/+577
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V2: - tidy ups suggested by Connor. - tidy up cloning logic and handle copy propagation based of suggestion by Connor. - use nir_ssa_def_rewrite_uses to fix up lcssa phis suggested by Connor. - add support for complex loop unrolling (two terminators) - handle case were the ssa defs use outside the loop is already a phi - support unrolling loops with multiple terminators when trip count is know for each terminator V3: - set correct num_components when creating phi in complex unroll - rewrite update remap table based on Jasons suggestions. - remove unrequired extract_loop_body() helper as suggested by Jason. - simplify the lcssa phi fix up code for simple loops as per Jasons suggestions. - use mem context to keep track of hash table memory as suggested by Jason. - move is_{complex,simple}_loop helpers to the unroll code - require nir_metadata_block_index - partially rewrote complex unroll to be simpler and easier to follow. V4: - use rzalloc() when creating nir_phi_src but not setting pred right away fixes regression cause by ralloc() no longer zeroing memory. V5: - simplify calling of complex_unroll() - use new loop terminator fields to get the break/continue from blocks and simplify loop unrolling code - handle slightly less trivial loop terminators. if branches can now have instructions but can only contain a single block. - use nir print type IR snippets in unroll function descriptions - add better explanation and variable for why we need to clone additional times when the second terminator it the limiting terminator. - partially convert out of ssa before unrolling loops (suggested by Jason) v6: - remove unused nir_builder - use Jasons new from ssa helper - tidy/fixup cursor use - unroll terminators that contain control flow correctly - unroll complex loops with control flow before the terminators correctly Reviewed-by: Jason Ekstrand <[email protected]>
* nir: add helper for cloning nir_cf_listTimothy Arceri2016-12-232-9/+56
| | | | | | | | | V2: - updated to create a generic list clone helper nir_cf_list_clone() - continue to assert on clone when fallback flag not set as suggested by Jason. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: update fixup_phi_srcs() to handle registersTimothy Arceri2016-12-231-4/+9
| | | | | | | We need to do this because we partially get out of SSA when unrolling and cloning loops. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: create helper for fixing phi srcs when cloningTimothy Arceri2016-12-231-15/+21
| | | | | | | This will be useful for fixing phi srcs when cloning a loop body during loop unrolling. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a LCSAA-passThomas Helland2016-12-232-0/+205
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | V2: Do a "depth first search" to convert to LCSSA V3: Small comment fixup V4: Rebase, adapt to removal of function overloads V5: Rebase, adapt to relocation of nir to compiler/nir Still need to adapt to potential if-uses Work around nir_validate issue V6 (Timothy): - tidy lcssa and stop leaking memory - dont rewrite the src for the lcssa phi node - validate lcssa phi srcs to avoid postvalidate assert - don't add new phi if one already exists - more lcssa phi validation fixes - Rather than marking ssa defs inside a loop just mark blocks inside a loop. This is simpler and fixes lcssa for intrinsics which do not have a destination. - don't create LCSSA phis for loops we won't unroll - require loop metadata for lcssa pass - handle case were the ssa defs use outside the loop is already a phi V7: (Timothy) - pass indirect mask to metadata call v8: (Timothy) - make convert to lcssa a helper function rather than a nir pass - replace inside loop bitset with on the fly block index logic. - remove lcssa phi validation special cases - inline code from useless helpers, suggested by Jason. - always do lcssa on loops, suggested by Jason. - stop making lcssa phis special. Add as many source as the block has predecessors, suggested by Jason. V9: (Timothy) - fix regression with the is_lcssa_phi field not being initialised to false now that ralloc() doesn't zero out memory. V10: (Timothy) - remove extra braces in SSA example, pointed out by Topi V11: (Timothy) - add missing support for LCSSA phis in if conditions. V12: (Timothy) - small tidy up suggested by Jason. - always create lcssa phi even if it just points to an lcssa phi from an inner loop Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a loop analysis passThomas Helland2016-12-235-3/+984
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This pass detects induction variables and calculates the trip count of loops to be used for loop unrolling. V2: Rebase, adapt to removal of function overloads V3: (Timothy Arceri) - don't try to find trip count if loop terminator conditional is a phi - fix trip count for do-while loops - replace conditional type != alu assert with return - disable unrolling of loops with continues - multiple fixes to memory allocation, stop leaking and don't destroy structs we want to use for unrolling. - fix iteration count bugs when induction var not on RHS of condition - add FIXME for && conditions - calculate trip count for unsigned induction/limit vars V4: (Timothy Arceri) - count instructions in a loop - set the limiting_terminator even if we can't find the trip count for all terminators. This is needed for complex unrolling where we handle 2 terminators and the trip count is unknown for one of them. - restruct structs so we don't keep information not required after analysis and remove dead fields. - force unrolling in some cases as per the rules in the GLSL IR pass V5: (Timothy Arceri) - fix metadata mask value 0x10 vs 0x16 V6: (Timothy Arceri) - merge loop_variable and nir_loop_variable structs and lists suggested by Jason - remove induction var hash table and store pointer to induction information in the loop_variable suggested by Jason. - use lowercase list_addtail() suggested by Jason. - tidy up init_loop_block() as per Jasons suggestions. - replace switch with nir_op_infos[alu->op].num_inputs == 2 in is_var_basic_induction_var() as suggested by Jason. - use nir_block_last_instr() in and rename foreach_cf_node_ex_loop() as suggested by Jason. - fix else check for is_trivial_loop_terminator() as per Connors suggetions. - simplify offset for induction valiables incremented before the exit conditions is checked. - replace nir_op_isub check with assert() as it should have been lowered away. V7: (Timothy Arceri) - use rzalloc() on nir_loop struct creation. Worked previously because ralloc() was broken and always zeroed the struct. - fix cf_node_find_loop_jumps() to find jumps when loops contain nested if statements. Code is tidier as a result. V8: (Timothy Arceri) - move is_trivial_loop_terminator() to nir.h so we can use it to assert is the loop unroll pass - fix analysis to not bail when looking for terminator when the break is in the else rather then the if - added new loop terminator fields: break_block, continue_from_block and continue_from_then so we don't have to gather these when doing unrolling. - get correct array length when forcing unrolling of variables indexed arrays that are the same size as the iteration count - add support for induction variables of type float - update trival loop terminator check to allow an if containing instructions as long as both branches contain only a single block. V9: (Timothy) - bunch of tidy ups and simplifications suggested by Jason. - rewrote trivial terminator detection, now the only restriction is there must be no nested jumps, anything else goes. - rewrote the iteration test to use nir_eval_const_opcode(). - count instruction properly even when forcing an unroll. - bunch of other tidy ups and simplifications. V10: (Timothy) - some trivial tidy ups suggested by Jason. - conditional fix for break inside continue branch by Jason. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a couple quick-and-dirty out-of-SSA helpersJason Ekstrand2016-12-232-12/+180
| | | | | | | | | | | These are designed for use within an optimization pass when SSA becomes more pain than it's worth. They're very naive and don't generate anything close to optimal register-based NIR. Also, they may result in shaders which do not validate because of, for instance, registers in phi sources. However, the register-based into-SSA pass should be pretty efficient at cleaning up the mess. Reviewed-by: Timothy Arceri <[email protected]>
* nir: Trivial clean ups in the generated nir_constant_expressions.cIan Romanick2016-12-191-6/+5
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Silence unused parameter warnings in nir_constant_expression.cIan Romanick2016-12-191-2/+2
| | | | | | | | | | | | | | | | | | | | nir/nir_constant_expressions.c:290:25: warning: unused parameter 'num_components' [-Wunused-parameter] evaluate_ball3(unsigned num_components, nir_const_value *_src) ^ nir/nir_constant_expressions.c: In function 'evaluate_fddx': nir/nir_constant_expressions.c:1282:57: warning: unused parameter '_src' [-Wunused-parameter] evaluate_fddx(unsigned num_components, nir_const_value *_src) ^ v2: Unconditionally mark the parameters as MAYBE_UNUSED instead of conditionally adding (void) casts to keep the generator simple. Suggested by Jason. Number of total warnings in my build reduced from 1575 to 1485 (reduction of 89). Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Silence missing field initializer warnings for vectors in ↵Ian Romanick2016-12-191-0/+3
| | | | | | | | | | | | | | | | | | | | | nir_constant_expressions nir/nir_constant_expressions.c: In function 'evaluate_ball2': nir/nir_constant_expressions.c:279:7: warning: missing initializer for field 'z' of 'struct bool_vec' [-Wmissing-field-initializers] }; ^ nir/nir_constant_expressions.c:234:10: note: 'z' declared here bool z; ^ Number of total warnings in my build reduced from 2532 to 2304 (reduction of 228). v2: Initialize bool vectors with 0 instead of false to keep the generator simpler. Suggested by Ken. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Remove nir_array from lower_locals_to_regsThomas Helland2016-12-161-9/+0
| | | | | | | | We do nothing but initialize it, add to it, and delete it. This is a fallout from removing constant initializer support. Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Turn imov/fmov of undef into undefTimothy Arceri2016-12-161-6/+6
| | | | | | | | | | | | | | | Reverting the previous attempt at this a5502a721fd30fd resulted in the following Vulkan test failing. dEQP-VK.glsl.return.return_in_dynamic_loop_dynamic_vertex This time we use the num_components from the alu dest rather than num_inputs to the op to determine the size of the undef. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Cc: "13.0" <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99100
* nir/lower_tex: fix number of components in replace_gradient_with_lod()Iago Toral Quiroga2016-12-151-1/+2
| | | | | | | | | | We should make the dest in the textureLod() operation have the same number of components as the destination in the original textureGrad() Fixes regression in ES3-CTS.gtf.GL3Tests.shadow Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99072 Reviewed-by: Kenneth Graunke <[email protected]>
* Revert "nir: Turn imov/fmov of undef into undef."Timothy Arceri2016-12-151-3/+1
| | | | | | | | | | This reverts commit 6aa730000fea84a14b49828a4bb30761d43903bf. This was changing the size of the undef to always be 1 (the number of inputs to imov and fmov) which is wrong, we could be moving a vec4 for example. Acked-by: Kenneth Graunke <[email protected]> Cc: "13.0" <[email protected]>
* nir/lower_tex: lower gradients on shadow cube maps if lower_txd_shadow is setIago Toral Quiroga2016-12-131-2/+4
| | | | | | | Even if lower_txd_cube_map isn't. Suggested by Ken to make the flag more consistent with its name. Reviewed-by: Kenneth Graunke <[email protected]>
* nir/lower_tex: add lowering for texture gradient on shadow samplersIago Toral Quiroga2016-12-132-0/+67
| | | | | | | | | | | | | | | | | | | | This is ported from the Intel lowering pass that we use with GLSL IR. This takes care of lowering texture gradients on shadow samplers other than cube maps. Intel hardware requires this for gen < 8. v2 (Ken): - Use the helper function to retrieve ddx/ddy - Swizzle away size components we are not interested in v3: - Get rid of the ddx/ddy helper and use nir_tex_instr_src_index instead (Ken, Eric) v4: - Add a 'continue' statement if the lowering makes progress because it replaces the original texture instruction Reviewed-by: Kenneth Graunke <[email protected]> (v3)
* nir/lower_tex: add lowering for texture gradient on cube mapsIago Toral Quiroga2016-12-132-0/+213
| | | | | | | | | | | | | | | | | | | | | | | | This is ported from the Intel lowering pass that we use with GLSL IR. The NIR pass only handles cube maps, not shadow samplers, which are also lowered for gen < 8 on Intel hardware. We will add support for that in a later patch, at which point we should be able to remove the GLSL IR lowering pass. v2: - added a helper to retrieve ddx/ddy parameters (Ken) - No need to make size.z=1.0, we are only using component x anyway (Iago) v3: - Get rid of the ddx/ddy helper and use nir_tex_instr_src_index instead (Ken, Eric) v4: - When emitting the textureLod operation, copy all texture parameters from the original textureGrad() (except for ddx/ddy) using a loop - Add a 'continue' statement if the lowering makes progress because it replaces the original texture instruction Reviewed-by: Kenneth Graunke <[email protected]> (v3)
* nir/lower_tex: generalize get_texture_size()Iago Toral Quiroga2016-12-131-5/+10
| | | | | | | This was written specifically for RECT samplers. Make it more generic so we can call this from the gradient lowerings too. Reviewed-by: Kenneth Graunke <[email protected]>
* treewide: s/comparitor/comparator/Ilia Mirkin2016-12-123-5/+5
| | | | | | | | | | git grep -l comparitor | xargs sed -i 's/comparitor/comparator/g' Just happened to notice this in a patch that was sent and included one of the tokens in question. Signed-off-by: Ilia Mirkin <[email protected]> Acked-by: Nicolai Hähnle <[email protected]>
* nir: Only float and double types can be matricesIan Romanick2016-12-121-5/+6
| | | | | | | | | | | | | | In 19a541f (nir: Get rid of nir_constant_data) a number of places that operated on nir_constant::values were mechanically converted to operate on the whole array without regard for the base type. Only GLSL_TYPE_FLOAT and GLSL_TYPE_DOUBLE can be matrices, so only those types can have data in the non-0 array element. See also b870394. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Cc: Iago Toral Quiroga <[email protected]>
* nir: Move fsat outside of fmin/fmax if second arg is 0 to 1.Matt Turner2016-12-122-0/+25
| | | | | | | | | | instructions in affected programs: 550 -> 544 (-1.09%) helped: 6 cycles in affected programs: 6952 -> 6850 (-1.47%) helped: 6 Reviewed-by: Jason Ekstrand <[email protected]>
* nir: In split_var_copies_block, uint, int, and bool types cannot be matricesIan Romanick2016-12-061-3/+5
| | | | | | | | Noticed while adding support for 64-bit integer types. Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Connor Abbott <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Remove some unused fields from nir_variableJason Ekstrand2016-12-051-34/+0
| | | | | | | All of these are happily set from glsl_to_nir or spirv_to_nir but their values are never used for anything. Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: Delete most of the constant_initializer supportJason Ekstrand2016-12-055-146/+12
| | | | | | | | | | | Constant initializers have been a constant (ha!) pain for quite some time. While they're useful from a language perspective, people writing passes or backends really don't want deal with them most of the time. This commit removes most of the constant initializer support from NIR. It is expected that you call nir_lower_constant_initializers VERY EARLY to ensure that they're gone before you do anything interesting. Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: Simplify nir_lower_gs_intrinsicsJason Ekstrand2016-12-051-21/+16
| | | | | | | It's only ever called on single-function shaders. At this point, there are a lot of helpers that can make it all much simpler. Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir/lower_returns: Stop using constant initializersJason Ekstrand2016-12-051-4/+5
| | | | Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: Add a pass for lowering away constant initializersJason Ekstrand2016-12-052-0/+114
| | | | Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: Get rid of nir_constant_dataJason Ekstrand2016-12-024-52/+41
| | | | | | | | This has bothered me for about as long as NIR has been around. Why do we have two different unions for constants? No good reason other than one of them is a direct port from GLSL IR. Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: print var binding in dumps.Dave Airlie2016-11-291-1/+1
| | | | | | | | This only useful for spir-v shaders, but I keep finding myself having to add it. Reviewed-by: Kenneth Graunke <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
* nir: Add a layer_id system value intrinsicJason Ekstrand2016-11-221-0/+1
| | | | Reviewed-by: Jordan Justen <[email protected]>
* nir: add a pass to compact clip/cull distances.Kenneth Graunke2016-11-222-0/+189
| | | | | | | v2: Use nir_is_per_vertex_io() rather than is_arrays_of_arrays(). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Add a "compact array" flag and IO lowering code.Kenneth Graunke2016-11-226-18/+66
| | | | | | | | | | | | | | | | | | | | Certain built-in arrays, such as gl_ClipDistance[], gl_CullDistance[], gl_TessLevelInner[], and gl_TessLevelOuter[] are specified as scalar arrays. Normal scalar arrays are sparse - each array element usually occupies a whole vec4 slot. However, most hardware assumes these built-in arrays are tightly packed. The new var->data.compact flag indicates that a scalar array should be tightly packed, so a float[4] array would take up a single vec4 slot, and a float[8] array would take up two slots. They are still arrays, not vec4s, however. nir_lower_io will generate intrinsics using ARB_enhanced_layouts style component qualifiers. v2: Add nir_validate code to enforce type restrictions. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* st/mesa/glsl/nir/i965: make use of new gl_shader_program_data in ↵Timothy Arceri2016-11-192-4/+4
| | | | | | gl_shader_program Reviewed-by: Emil Velikov <[email protected]>
* nir: Avoid an extra NIR op in integer divide lowering.Eric Anholt2016-11-161-2/+1
| | | | | | NIR bools are ~0 for true, so ((unsigned)a >> 31) != 0 -> ((int)a >> 31). Reviewed-by: Kenneth Graunke <[email protected]>
* nir: add support for counting AoA uniforms in nir_shader_gather_info()Timothy Arceri2016-11-171-2/+2
| | | | Reviewed-by: Emil Velikov <[email protected]>
* nir: update nir_gather_info to only mark used array/matrix elementsTimothy Arceri2016-11-111-53/+207
| | | | | | | | | | This is based on the code from the GLSL IR pass however unlike the GLSL IR pass it also supports arrays of arrays. As well as implementing the logic from the GLSL IR pass we add some additional intrinsic cases to catch more system values. Reviewed-by: Kenneth Graunke <[email protected]>
* nir: Generalize the "is per-vertex variable?" helpers and export them.Kenneth Graunke2016-11-112-18/+17
| | | | | | | | I want this function for nir_gather_info(), and realized it's basically the same as the ones in nir_lower_io(). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Timothy Arceri <[email protected]>
* nir: add conditional discard optimisation (v4)Dave Airlie2016-11-102-0/+127
| | | | | | | | | | | | | | | | | | | | | | | This is ported from GLSL and converts if (cond) discard; into discard_if(cond); This removes a block, but also is needed by radv to workaround a bug in the LLVM backend. v2: handle if (a) discard_if(b) (nha) cleanup and drop pointless loop (Matt) make sure there are no dependent phis (Eric) v3: make sure only one instruction in the then block. v4: remove sneaky tabs, add cursor init (Eric) Reviewed-by: Eric Anholt <[email protected]> Cc: "13.0" <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
* nir: Make sure to set the texsrc type in nir drawpixels/bitmap lowering.Eric Anholt2016-11-032-0/+4
| | | | | | | | | We were leaving an undefined value since the ralloc zeroing changes. Fixes nir_validate() failures on vc4. v2: Fix the color-index case of drawpixels as well. Reviewed-by: Rob Clark <[email protected]> (v1)
* nir: Flip gl_SamplePosition in nir_lower_wpos_ytransform().Francisco Jerez2016-11-031-0/+24
| | | | | | | | | | | | | | | | | | Assuming the hardware is set up to use a screen coordinate system flipped vertically with respect to the GL's window coordinate system, the SYSTEM_VALUE_SAMPLE_POS vector will also be flipped vertically with respect to the value expected by the GL, so we need to give it the same treatment as gl_FragCoord. Fixes the following CTS tests on i965: ES31-CTS.functional.shaders.multisample_interpolation.interpolate_at_offset.at_sample_position.default_framebuffer ES31-CTS.functional.shaders.sample_variables.sample_pos.correctness.default_framebuffer when run with any multisample configuration, e.g. rgba8888d24s8ms4. Cc: <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
* nir: fix nir_shader_clone() and nir_sweep()Timothy Arceri2016-11-032-1/+9
| | | | | | | | | | These were broken in e1af20f18a8 when the info field in nir_shader was turned into a pointer. Clone was copying the pointer rather than the data and nir_sweep was cleaning up shader_info rather than claiming it. Reviewed-by: Eric Anholt <[email protected]>
* ralloc: use rzalloc where it's necessaryMarek Olšák2016-10-311-3/+5
| | | | | | | | | | | | | | | | | No change in behavior. ralloc_size is equivalent to rzalloc_size. That will change though. Calls not switched to rzalloc_size: - ralloc_vasprintf - glsl_type::name allocation (it's filled with snprintf) - C++ classes where valgrind didn't show uninitialized values I switched most of non-glsl stuff to rzalloc without checking whether it's really needed. Reviewed-by: Edward O'Callaghan <[email protected]> Tested-by: Edmondo Tommasina <[email protected]> Reviewed-by: Nicolai Hähnle <[email protected]>
* nir: zero allocated memory where neededJuha-Pekka Heikkila2016-10-316-7/+7
| | | | Signed-off-by: Marek Olšák <[email protected]>
* nir: stop adjusting driver location for varying packingTimothy Arceri2016-10-262-47/+2
| | | | | | | | | | | | As of 59864e8e020 we just use the location assigned by the front-end and no longer need this for i965. Since there were some issues in the logic with assigning arrays the same driver location if they didn't start at the same location just remove it and let other drivers implement a solution if needed when they add ARB_enhanced_layouts support. Reviewed-by: Kenneth Graunke <[email protected]>
* nir/i965/anv/radv/gallium: make shader info a pointerTimothy Arceri2016-10-2611-39/+45
| | | | | | | | | | When restoring something from shader cache we won't have and don't want to create a nir_shader this change detaches the two. There are other advantages such as being able to reuse the shader info populated by GLSL IR. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: move nir_shader_info to a common compiler headerTimothy Arceri2016-10-261-96/+2
| | | | | | | This will allow use to stop copying values between structs and will also simplify handling handling these values in the shader cache. Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Optimize integer division and modulus with 1Ian Romanick2016-10-191-0/+4
| | | | | | | | | | | | | | The previous power-of-two rules didn't catch idiv (because i965 doesn't set lower_idiv) and imod cases. The udiv and umod cases should have been caught, but I included them for orthogonality. This fixes silly code observed from compute shaders with local_size_[xy] = 1. Signed-off-by: Ian Romanick <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98299 Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
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