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path: root/src/compiler/nir/nir_search.c
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* nir/search: Extend 'a@bool' to handle a couple of system values.Kenneth Graunke2016-08-181-0/+7
| | | | | | | | | | | | | | load_front_face and load_helper_invocation produce booleans. On Broadwell: total instructions in shared programs: 11638956 -> 11638011 (-0.01%) instructions in affected programs: 115093 -> 114148 (-0.82%) helped: 628 HURT: 14 Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/search: Fold src_is_bool()/alu_instr_is_bool() into src_is_type().Kenneth Graunke2016-08-181-31/+19
| | | | | | | | | | | | I don't want src_is_bool() and src_is_type(x, nir_type_bool) to behave differently. Having the logic spread out over three functions makes it harder to decide where to put new logic, as well. So, combine them all. It's a bit simpler because there's now only one recursive function rather than a pair of mutually recursive functions. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/search: Introduce a src_is_type() helper for 'a@type' handling.Kenneth Graunke2016-08-181-13/+29
| | | | | | | | | | | | Currently, 'a@type' can only match if 'a' is produced by an ALU instruction. This is rather limited - there are other cases we can easily detect which we should handle. Extending the code in-place would be fairly messy, so we introduce a new src_is_type() helper. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/algebraic: support for power-of-two optimizationsRob Clark2016-06-031-0/+3
| | | | | | | | | | | | Some optimizations, like converting integer multiply/divide into left/ right shifts, have additional constraints on the search expression. Like requiring that a variable is a constant power of two. Support these cases by allowing a fxn name to be appended to the search var expression (ie. "a#32(is_power_of_two)"). Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/search: Respect the bit_size parameter on nir_search_valueJason Ekstrand2016-04-271-0/+14
| | | | | Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: Add missing break into switch in construct_value()Juha-Pekka Heikkila2016-04-261-0/+1
| | | | | | | | There seemed to be missing one break in nested switchcases. Signed-off-by: Juha-Pekka Heikkila <[email protected]> Reviewed-by: Antia Puentes <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* nir: add bit_size info to nir_load_const_instr_create()Samuel Iglesias Gonsálvez2016-04-111-3/+2
| | | | Reviewed-by: Jason Ekstrand <[email protected]>
* nir: Use PRIi64 and PRIu64 instead of %ld and %lu.Kenneth Graunke2016-04-041-2/+3
| | | | | | | | | %ld and %lu aren't the right format specifiers for int64_t and uint64_t on 32-bit (x86) systems. They're %zu on Linux and %Iu on Windows. Use the standard C99 macros in hopes that they work everywhere. Signed-off-by: Kenneth Graunke <[email protected]>
* nir/search: Don't match inexact expressions with exact subexpressionsJason Ekstrand2016-04-041-5/+18
| | | | | | | | | | | | | | | | | | | | In the first pass of implementing exact handling, I made a mistake with search-and-replace. In particular, we only reallly handled exact/inexact on the root of the tree. Instead, we need to check every node in the tree for an exact/inexact match. As an example of this, consider the following GLSL code precise float a = b + c; if (a < 0) { do_stuff(); } In that case, only the add will be declared "exact" and an expression that looks for "b + c < 0" will still match and replace it with "b < -c" which may yield different results. The solution is to simply bail if any of the values are exact when matching an inexact expression. Reviewed-by: Ian Romanick <[email protected]>
* nir: fix dangling ssadef->name ptrsRob Clark2016-03-241-3/+3
| | | | | | | | | | | | | | | | | In many places, the convention is to pass an existing ssadef name ptr when construction/initializing a new nir_ssa_def. But that goes badly (as noticed by garbage in nir_print output) when the original string gets freed. Just use ralloc_strdup() instead, and add ralloc_free() in the two places that would care (not that the strings wouldn't eventually get freed anyways). Also fixup the nir_search code which was directly setting ssadef->name to use the parent instruction as memctx. Signed-off-by: Rob Clark <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* nir/algebraic: Allow for flagging operations as being inexactJason Ekstrand2016-03-231-0/+4
| | | | Reviewed-by: Francisco Jerez <[email protected]>
* nir/search: Propagate exactness into newly created expressionsJason Ekstrand2016-03-231-4/+5
| | | | Reviewed-by: Francisco Jerez <[email protected]>
* nir: propagate bitsize information in nir_searchConnor Abbott2016-03-171-21/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | When we replace an expresion we have to compute bitsize information for the replacement. We do this in two passes to validate that bitsize information is consistent and correct: first we propagate bitsize from child nodes to parent, then we do it the other way around, starting from the original's instruction destination bitsize. v2 (Iago): - Always use nir_type_bool32 instead of nir_type_bool when generating algebraic optimizations. Before we used nir_type_bool32 with constants and nir_type_bool with variables. - Fix bool comparisons in nir_search.c to account for bitsized types. v3 (Sam): - Unpack the double constant value as unsigned long long (8 bytes) in nir_algrebraic.py. v4 (Sam): - Use helpers to get type size and base type from nir_alu_type. Signed-off-by: Iago Toral Quiroga <[email protected]> Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: add a bit_size parameter to nir_ssa_dest_initConnor Abbott2016-03-171-2/+3
| | | | | | | | | | | | | | | | | | | | | | v2: Squash multiple commits addressing the new parameter in different files so we don't break the build (Iago) v3: Fix tgsi (Samuel) v4: Fix nir_clone.c (Samuel) v5: Fix vc4 and freedreno (Iago) v6 (Sam) - Fix build errors in nir_lower_indirect_derefs - Use helper to get type size from nir_alu_type. Signed-off-by: Iago Toral Quiroga <[email protected]> Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]> Tested-by: Rob Clark <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]>
* nir: rename nir_const_value fields to include bitsize informationIago Toral Quiroga2016-03-171-5/+5
| | | | | Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]>
* nir: move to compiler/Emil Velikov2016-01-261-0/+379
Signed-off-by: Emil Velikov <[email protected]> Acked-by: Matt Turner <[email protected]> Acked-by: Jose Fonseca <[email protected]>