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>
This check was added because I thought v_mad_f32 didn't preserve the
signess of zero, but I can't reproduce that and this isn't mentioned
anywhere in LLVM.
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>
Fixes the following clang warning:
mesa/src/amd/compiler/aco_optimizer.cpp:2928:15: warning: moving a temporary object prevents copy elision [-Wpessimizing-move]
ctx.uses = std::move(dead_code_analysis(program));
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5228>
Totals from 11 (0.01% of 127638) affected shaders:
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 93c8ebfa78 ('aco: Initial commit of independent AMD compiler')
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4880>
Don't do both at the same time as it breaks DCE
Fixes: 2dc550202e ('aco: copy-propagate p_create_vector copies of vectors')
Fixes: dEQP-VK.glsl.builtin.precision_double.ldexp.compute.scalar on GFX6-GFX7
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4922>
Fixes random dEQP-VK.transform_feedback.fuzz.* crashes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Fixes: 2dc550202e
('aco: copy-propagate p_create_vector copies of vectors')
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4730>
Instead of copying the operands of the other p_create_vector and labelling
the definition with label_vec, copy the operands and label it with
label_temp so that it can be copy-propagated.
This was found while removing a redundant copy in load_input_from_temps()
which removed duplicate p_create_vector instructions.
shader-db (Navi):
Totals from 139 (0.11% of 127638) affected shaders:
VGPRs: 8472 -> 7948 (-6.19%)
CodeSize: 514592 -> 512368 (-0.43%)
MaxWaves: 1089 -> 1195 (+9.73%)
Instrs: 100214 -> 99658 (-0.55%)
Cycles: 400856 -> 398632 (-0.55%)
VMEM: 15545 -> 15338 (-1.33%)
Copies: 5140 -> 4584 (-10.82%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4667>
PSEUDO instructions are lowered using SDWA, and thus,
cannot take literals and before GFX9 cannot take constants
at all. As the in-register representation differs between
32bit and 16bit floats, we first need to ensure correct
behavior.
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4492>
v_mad and v_madak are both 64-bit instructions, so it doesn't
increase code size to always apply a 32-bit literal instead of
using v_mad and a sgpr which contains that literal.
Found with some Youngblood shaders but help some other games.
vkpipeline-db (VEGA10):
Totals from affected shaders:
SGPRS: 46168 -> 46016 (-0.33 %)
VGPRS: 45576 -> 45564 (-0.03 %)
Code Size: 5187208 -> 5179584 (-0.15 %) bytes
Max Waves: 3297 -> 3297 (0.00 %)
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4410>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4410>
Previously, it was calculated incorrectly for 64-bit writes and reads.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3964>
For all VMEM instructions, the resource constant is now
in operands[0]. For MIMG instructions, the sampler shares
operands[1] with write data in case this instruction writes memory.
Moving the VADDR to be the last operand for MIMG is the first step to
support Navi NSA encoding.
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3602>
Even if it's a literal, we should add this to sgpr_ids.
No pipeline-db changes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: 0be7409069 ('aco: rewrite literal combining')
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3541>
This allows removing superfluous s_cselect instructions
that come from turning booleans into 64-bit vector condition.
v2 by Daniel Schürmann:
- Make the code massively simpler
v3 by Timur Kristóf:
- Fix regressions, make it work in wave32 mode
- Eliminate extra moves by not always using the SCC definition
- Use s_absdiff_i32 for uniform XOR
- Skip the transformation for uncommon or invalid instructions
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3450>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3450>
SMRD instructions have an 8-bit dword offset on SI.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3432>
When possible, get rid of an s_not when all it does is invert the SCC,
and its successor s_cbranch / s_cselect can be inverted instead.
Also modify some parts of instruction_selection to take advantage of
this feature.
Example:
s2: %3900, s1: %3899:scc = s_andn2_b64 %0:exec, %406
s2: %3902 = s_cselect_b64 -1, 0, %3900:scc
s2: %407, s1: %3903:scc = s_not_b64 %3902
s2: %3906, s1: %3905:scc = s_and_b64 %407, %0:exec
p_cbranch_z %3905:scc
Can now be optimized to:
s2: %3900, s1: %3899:scc = s_andn2_b64 %0:exec, %406
p_cbranch_nz %3900:scc
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Previously all booleans needed an s_and with exec when they were turned
into a scalar condition. However, this is not needed for uniform booleans.
v2 by Daniel Schürmann:
- Make the code more readable
v3 by Timur Kristóf:
- Fix regressions, make it work in wave32 mode
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
We can't do the optimization if there are neg/abs in-between.
No pipeline-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/2883>
Using needs_vop3 check was flawed because it would only combine the
literal if the first operand is the literal. If the second or third
operand is the literal, then needs_vop3 will be true and the literal will
not be combined.
pipeline-db (Navi):
Totals from affected shaders:
SGPRS: 782051 -> 782051 (0.00 %)
VGPRS: 630048 -> 630048 (0.00 %)
Spilled SGPRs: 195 -> 195 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Code Size: 54743740 -> 54585548 (-0.29 %) bytes
Max Waves: 67340 -> 67340 (0.00 %)
Instructions: 10182030 -> 10182030 (0.00 %)
pipeline-db (Vega):
Totals from affected shaders:
SGPRS: 701990 -> 699590 (-0.34 %)
VGPRS: 566632 -> 566784 (0.03 %)
Spilled SGPRs: 218 -> 218 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Code Size: 49173564 -> 49007856 (-0.34 %) bytes
Max Waves: 59650 -> 59612 (-0.06 %)
Instructions: 9315135 -> 9293330 (-0.23 %)
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/2883>
