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* nir: Add an optimization pass to remove trivial continuesJason Ekstrand2016-12-223-0/+140
| | | | 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 Arceri2016-12-233-0/+578
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Helland2016-12-233-0/+206
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Helland2016-12-236-3/+986
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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]>
* glsl: Eliminate the open-coded version of process_block_array_leafIan Romanick2016-12-211-31/+9
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Timothy Arceri <[email protected]>
* glsl: Use ir_var_temporary when generating inline functions.Kenneth Graunke2016-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | We were using ir_var_auto for the inlined function parameter variables, which is wrong, as it suggests that those are real variables declared by the program. Normally this doesn't matter. However, if you called built-ins at global scope, it would pollute the global variable namespace with these new parameter temporaries. If the shader already had variables with those names, the linker might see contradictory global variable declarations and raise an error. Making them temporaries indicates that these are just things generated by the compiler internally. This avoids confusing the linker. Fixes a new Piglit test: glsl-fs-multiple-builtins. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99154 Reported-by: Niels Ole Salscheider <[email protected]> Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ilia Mirkin <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]>
* glsl: allow invariant on fragment shader outputs.Dave Airlie2016-12-201-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From page 27 (page 33 of the PDF) of the GLSL 1.20 spec: " Only variables output from a vertex shader can be candidates for invariance." But this later changes to: From page 37 (page 43 of the PDF) of the GLSL 1.30 spec: " Only variables output from a shader can be candidates for invariance." We can also find: From page 37 (page 43 of the PDF) of the GLSL 1.30 spec: " Initially, by default, all output variables are allowed to be variant. To force all output variables to be invariant, use the pragma #pragma STDGL invariant(all) before all declarations in a shader. If this pragma is used after the declaration of any variables or functions, then the set of outputs that behave as invariant is undefined. It is an error to use this pragma in a fragment shader." But this needs to be corrected and it is being addressed at: https://cvs.khronos.org/bugzilla/show_bug.cgi?id=16140 Fixes GL45-CTS.shading_language_420pack.qualifier_order. Signed-off-by: Dave Airlie <[email protected]> Reviewed-by: Andres Gomez <[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]>
* glsl: Silence "unused parameter" warnings in ast_type.cppIan Romanick2016-12-191-6/+4
| | | | | | | | | | | | | | glsl/ast_type.cpp: In function ‘bool validate_point_mode(YYLTYPE*, _mesa_glsl_parse_state*, const ast_type_qualifier&, const ast_type_qualifier&)’: glsl/ast_type.cpp:173:30: warning: unused parameter ‘loc’ [-Wunused-parameter] validate_point_mode(YYLTYPE *loc, ^~~ glsl/ast_type.cpp:174:45: warning: unused parameter ‘state’ [-Wunused-parameter] _mesa_glsl_parse_state *state, ^~~~~ Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Andres Gomez <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Trivial whitespace fixes in link_uniforms.cppIan Romanick2016-12-191-3/+4
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Silence unused parameter warning in propagate_invariance.cppIan Romanick2016-12-191-1/+1
| | | | | | | | | | glsl/propagate_invariance.cpp: In member function ‘virtual ir_visitor_status {anonymous}::ir_invariance_propagation_visitor::visit_leave(ir_assignment*)’: glsl/propagate_invariance.cpp:86:63: warning: unused parameter ‘ir’ [-Wunused-parameter] ir_invariance_propagation_visitor::visit_leave(ir_assignment *ir) ^~ Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Minor formatting fixes in link_uniform_blocks.cppIan Romanick2016-12-191-37/+42
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Fix all the whitespace errors in link_uniform_block_active_visitor.cppIan Romanick2016-12-191-25/+21
| | | | | Signed-off-by: Ian Romanick <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* linker: Accurately mark a uniform block instance array element as used in a ↵Ian Romanick2016-12-191-2/+6
| | | | | | | | | | | | | | stage Now that information about which array-of-arrays elements are accessed is tracked, use that information to only mark an instance array element as used-by-stage if, in fact, it is. Fixes GL45-CTS.program_interface_query.uniform-block-types. Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Walk a list of ir_dereference_array to mark array elements as accessedIan Romanick2016-12-193-1/+507
| | | | | | Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Mark a set of array elements as accessed using a list of array_deref_rangeIan Romanick2016-12-193-0/+253
| | | | | | Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add structures to track accessed elements of a single arrayIan Romanick2016-12-192-0/+56
| | | | | | Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Add tracking for elements of an array-of-arrays that have been accessedIan Romanick2016-12-194-1/+177
| | | | | | | | | | | If there's a better way to provide access to ir_array_refcount_entry private members to the test functions, I am very interested to know about it. Signed-off-by: Ian Romanick <[email protected]> Cc: Francisco Jerez <[email protected]> Cc: [email protected] Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Use simpler visitor to determine which UBO and SSBO blocks are usedIan Romanick2016-12-194-5/+171
| | | | | | | | | | | | | | | Very soon this visitor will get more complicated. The users of the existing ir_variable_refcount visitor won't need the coming functionality, and this use doesn't need much of the functionality of ir_variable_refcount. v2: ir_array_refcount_visitor::get_variable_entry cannot return NULL, so don't check it. Suggested by Timothy. Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Track the linearized array index for each UBO instance array elementIan Romanick2016-12-191-4/+15
| | | | | | | | | | v2: Set linearizer_array_index in process_block_array_leaf. Suggested by Timothy. Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Fix wonkey indentation left from previous commitIan Romanick2016-12-191-45/+44
| | | | | | | Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Split process_block_array into two functionsIan Romanick2016-12-191-6/+28
| | | | | | | | | | | | | | One for the array parts and one for the leaf members. This will simplify later changes. The indentation is wonkey after this patch. This was done to make it more obvious that the function is just getting split. The next patch will fix the indentation. Signed-off-by: Ian Romanick <[email protected]> Cc: [email protected] Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Fix program interface queries relating to interface blocks.Kenneth Graunke2016-12-191-40/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes 555 dEQP tests (using the nougat-cts-dev branch), Piglit's arb_program_interface_query/arb_program_interface_query-resource-query, and GL45-CTS.program_interface_query.separate-programs-{tess-control, tess-eval,geometry}. Only one dEQP program interface failure remains. I would have liked to split this up into several distinct changes, but I wasn't sure how to do that given thet tangled nature of these issues. So, the issues: * We need to treat interface blocks declared as an array of instances as a single block - removing the outer array. The resource list entry's name should not include the array length. Properties such as GL_ARRAY_SIZE should refer to the variable inside the block, not the interface block's array properties. * We need to do this prefixing even for structure variables. * We need to do this for built-ins (such as gl_PerVertex.gl_Position). * After interface array unwrapping, any variable which is an array should have [0] appended. It doesn't matter if it's a TCS/TES/GS input or TCS output - that looked like an attempt to unwrap for per-vertex variables, but that didn't consider per-patch variables, and as far as I can tell there's nothing to justify this. Several Mesa developers have suggested that Issue 16 contradicts the main specification, but I believe that it doesn't - the main spec just isn't terribly clear. The main ARB_program_interface query spec says: "* For an active interface block not declared as an array of block instances, a single entry will be generated, using the block name from the shader source. * For an active interface block declared as an array of instances, separate entries will be generated for each active instance. The name of the instance is formed by concatenating the block name, the "[" character, an integer identifying the instance number, and the "]" character." Issue 16 says that built-ins should be named "gl_PerVertex.gl_Position", but several people suggested the second bullet above means that it should be named "gl_PerVertex[array length].gl_Position". There are two important things to note. Those bullet points say "an active interface block", while the others say "variable" or "active shader storage block member". They also don't mention applying the rules recursively (unlike the other bullets). Both suggest that these rules apply to blocks themselves, not members of blocks. In fact, for GL_UNIFORM_BLOCK queries, we do have "block[0]", "block[1]", ... resource list entries - so those rules are real, and actually used. So if they don't apply to block members, then how should members be named? Unfortunately, I don't see any rules outside of issue 16 - where the rationale is very unclear. I hope to clarify the spec in the future. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glsl: Drop bogus is_vertex_input from add_shader_variable().Kenneth Graunke2016-12-191-6/+1
| | | | | | | | | | | | stage_mask is a bitmask of shader stages, so the proper comparison would be (1 << MESA_SHADER_VERTEX), not MESA_SHADER_VERTEX itself. But we only care for structure types, and VS inputs cannot be structs. So we can just drop this entirely. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
* spirv/nir: add support for ImageGatherExtendedIlia Mirkin2016-12-161-7/+69
| | | | | | | | | | The strategy is to do the same thing that the GLSL lower_offset_arrays pass does - create 4 separate texture gather ops, one per offset, and read in the results from each gather's w component to recreate the desired result. Signed-off-by: Ilia Mirkin <[email protected]> Reviewed-by: Dave Airlie <[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 Mirkin2016-12-1216-37/+37
| | | | | | | | | | 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 Romanick2016-12-122-19/+24
| | | | | | | | | | | | | | 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]>
* glsl: remember per-component vertex streams for packed varyingsNicolai Hähnle2016-12-123-2/+24
| | | | Reviewed-by: Marek Olšák <[email protected]>
* spirv: Use a simpler and more correct implementaiton of tanh()Jason Ekstrand2016-12-091-9/+14
| | | | | | | | | | The new implementation is more correct because it clamps the incoming value to 10 to avoid floating-point overflow. It also uses a much reduced version of the formula which only requires 1 exp() rather than 2. This fixes all of the dEQP-VK.glsl.builtin.precision.tanh.* tests. Reviewed-by: Kenneth Graunke <[email protected]> Cc: "13.0" <[email protected]>
* glsl: Use a simpler formula for tanhJason Ekstrand2016-12-091-8/+10
| | | | | | | | | | | | The formula we have used in the past is a trivial reduction from the definition by simply multiplying both the numerator and denominator of the formula by 2. However, multiplying by e^x, you can further reduce it. This allows us to get rid of one side of the clamp and two of exponential functions which should make it faster. The new formula still passes the dEQP precision tests for tanh so it should be fine. Reviewed-by: Roland Scheidegger <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* compiler/glsl: fix precision problem of tanhHaixia Shi2016-12-091-2/+10
| | | | | | | | | | | | | | | | Clamp input scalar value to range [-10, +10] to avoid precision problems when the absolute value of input is too large. Fixes dEQP-GLES3.functional.shaders.builtin_functions.precision.tanh.* test failures. v2: added more explanation in the comment. v3: fixed a typo in the comment. Signed-off-by: Haixia Shi <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Cc: "13.0" <[email protected]>
* mesa: add support for GL_INTEL_conservative_rasterizationLionel Landwerlin2016-12-078-7/+70
| | | | | Signed-off-by: Lionel Landwerlin <[email protected]> Reviewed-by: Chris Forbes <[email protected]>
* mesa: Add GL and GLSL plumbing for ARB_post_depth_coverage for i965 (gen9+).Plamena Manolova2016-12-078-1/+49
| | | | | | | | | This extension allows the fragment shader to control whether values in gl_SampleMaskIn[] reflect the coverage after application of the early depth and stencil tests. Signed-off-by: Plamena Manolova <[email protected]> Reviewed-by: Chris Forbes <[email protected]>
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