All expressions have been replaced by their closest equivalent. No major
simplification efforts have been made to minimize risk of regressions.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
This makes for a more self-describing iteration behavior, and it gets rid
of the need for the duplicated "final check" at the bottom.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
All code paths that set "found" to true either break or return before the
loop header is reached again, so the checks are unnecessary.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
All expressions have been replaced by their closest equivalent. No major
simplification efforts have been made to minimize risk of regressions.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
This mainly clarifies the semantics of register bounds (inclusive vs
exclusive), and further groups related varaibles together to clarify
sliding-window-style loops.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
Delaying the call to adjust_max_used_regs until after get_regs_for_copies
returns puts the RA context into a state where registers past max_used_gpr
may be blocked. This isn't an issue on its own, but it adds a surprising
corner case to get_reg_simple that is easily avoided now.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7799>
This doesn't have much of an effect, but it helps avoid a
pathological case for Assassin's Creed Valhalla and a RDR2 shader with a
future change.
fossil-db (Sienna):
Totals from 55074 (39.51% of 139391) affected shaders:
SGPRs: 3515076 -> 3567744 (+1.50%); split: -0.01%, +1.51%
CodeSize: 206942120 -> 206941868 (-0.00%); split: -0.00%, +0.00%
Instrs: 39625900 -> 39625837 (-0.00%); split: -0.00%, +0.00%
Cycles: 1640088780 -> 1640088828 (+0.00%); split: -0.00%, +0.00%
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4070
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8416>
We will want both a VDATA operand and a sampler for some TFE/LWE MIMG
instructions.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7775>
Now that this function does not block RegisterFile entries anymore,
the temporary copy is only needed upon reaching the collect_vars call.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8261>
ACO attempts to store the output of an instruction in the same register
occupied by its operands where possible. Importantly this only works if
the operands are large enough to store the result register size. The code
failed to consider subdword operands when checking for this, causing
entire register slots to be freed up even though subdword parts were still
used.
In Mafia 3, this affected the following code:
v2b: %363:v[2][0:16], v2b: %362:v[2][16:32] = p_split_vector %360:v[2]
v1: %116:v[2] = v_cvt_f32_f16 %362:v[2][16:32]
v1: %117:v[2] = v_cvt_f32_f16 %363:v[2][0:16]
where v[2] is allocated to %116 even though its original lower 16 bits are
still used in the instruction after.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3717
Fixes: 031edbc4a5
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7461>
This new policy parameter allows disabling the optimistic path of get_reg
(i.e. get_reg_simple) to improve test coverage of the pessimistic path
provided by get_reg_impl.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7461>
In case one operand was renamed and another operand came
from an incomplete phi, it could happen, that the original
name was not restored.
This has no impact on the code, but ensures correct SSA
is maintained during RA.
Cc: mesa-stable
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8109>
This is necessary for the next commit, which will pass a temporary copy of
the register file to get_reg().
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7656>
Instead of copying the reg file as a backup, copy it so that we can remove
the rollback/undo code.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7656>
The loop variable "k" shadowed another variable in the outer scope, so
this loop had no actual effect.
Fixes: 52cc1f8237 ("aco: improve p_create_vector RA for sub-dword operands")
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7427>
This seems to be much faster than hash sets. When compiling pipelines from
5 games, live_var_analysis takes about a third the time it used to and
fossilize-replay is ~1.77% faster.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Reviewed-by: Tony Wasserka <tony.wasserka@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6733>
A future change will switch the liveness sets to bit vectors, which don't
contain regclass information.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6733>
v_writelane_b32 can take two sgprs but only if one is m0.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Cc: 20.2 <mesa-stable>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6662>
32-bit shifts were accidentally used before this change despite the intended
output being 64 bits.
This was observed when compiling Dolphin's ubershaders.
Cc: mesa-stable
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6568>
The upcoming change will allow to report all ACO errors (or warnings)
directly to the app via VK_EXT_debug_report. This is similar to what
we already do for reporting various SPIRV->NIR errors.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6318>
If the only two registers available are consecutive and used by killed
operands, both of them will be blocked and fail the edge check.
Totals from 903 (0.66% of 135946) affected shaders:
VGPRs: 30892 -> 30884 (-0.03%)
CodeSize: 1584468 -> 1584044 (-0.03%); split: -0.05%, +0.02%
MaxWaves: 14374 -> 14378 (+0.03%)
Instrs: 306482 -> 306399 (-0.03%); split: -0.06%, +0.03%
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5626>
Fixes RA failure for a parallel-rdp shader on pitcairn.
fossil-db (Navi):
Totals from 2 (0.00% of 128733) affected shaders:
CodeSize: 203656 -> 205724 (+1.02%)
Instrs: 32267 -> 32529 (+0.81%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5544>
Some instructions such as v_mad_f16 can do partial writes on GFX9.
No fossil-db changes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5245>
v_mad_f32 doesn't support denormals but v_fma_f32 does.
No fossil-db changes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5245>
