The RDNA ISA doc says that omod doesn't preserve -0.0 in 6.2.2. LLVM
appears to always disable omod in this situation, but clamp is unaffected.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Fixes: df645fa369 ("aco: implement VK_KHR_shader_float_controls")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7605>
These opcodes are never used and they always write the carry-out
according to the GCN3 ISA documentation.
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/7569>
Check for clamp, SDWA or DPP. The optimization isn't possible with SDWA
and DPP, so it would have been skipped anyway. Doing any of these with a
clamp modifier present would be incorrect.
No fossil-db changes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7045>
The first operand of v_bcnt should always be a VGPR because if it's
a SGPR, isel selects s_bcnt1 but I added a sanity check to prevent
any problems.
fossils-db (Vega10):
Totals from 23 (0.02% of 139517) affected shaders:
CodeSize: 106828 -> 106664 (-0.15%)
Instrs: 20242 -> 20201 (-0.20%)
Cycles: 213112 -> 211352 (-0.83%)
VMEM: 3200 -> 3184 (-0.50%)
SMEM: 928 -> 927 (-0.11%)
Helps Control, Assassins Creeds Origins and Youngblood.
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/7568>
Only on GFX8-9 because GFX10 doesn't zero the upper 16 bits.
No fossils-db changes.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7425>
No fossils-db changes.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7425>
v_mad_u32_u16 will be selected by isel to keep the range analysis
information around and to combine more v_add_u32+v_mad_u32_u16
together. When it's not possible to optimize that pattern, fallback
to v_mul_u32_u24 which is VOP2 instead of VOP3.
No fossils-db changes.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7425>
To indicate that the upper 16-bits are always 0 and that optimizing
v_mad_u32_u16 to v_mul_u32_u24 is valid.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7425>
When one instruction doesn't fit into the existing labels, use
the generic one.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7425>
Validation errors mention the pretty-printed instruction including
operands with the reserved % character, which caused vasprintf to
expect more format arguments than aco provided.
Fixes: c2b1978aa4 ("aco: rework the way various compilation/validation errors are reported")
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/7442>
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>
I don't know why these values were introduced for but it seems like
we can optimize this by just doing:
gl_SampleMaskIn[0] = (SampleCoverage & (1 << gl_SampleID))
AMDGPU-PRO and AMDVLK apply the same formula to compute the
sample mask when per-sample shading is enabled.
No fossils-db changes.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7377>
Use auto to avoid mistyping the constness of the pair key, which
triggers implicit conversions rather than compilation errors.
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7346>
Apply SGPRs/modifiers when possible and try not to break when SDWA
instructions are encountered.
No shader-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/7349>
This seems to give no measurable benefit to Strange Brigade or Shadow of
Mordor, but it's simple to do, helps in theory and all other compilers do
it.
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/5919>
If the workgroup_size variable is lower than the actual workgroup size,
that means it's possible that ACO won't emit some s_barrier instructions
when in fact it should. This can possibly cause a GPU hang.
This is just for the sake of general correctness, currently this
can't cause a real problem because the maximum vertex count is always
greater than (or equal to) the primitive count in GS, and already
takes into account the number of GS invocations.
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/7232>
This is a workaround for a bug in Navi 1x NGG HW.
Very rarely, the Navi 1x PA can hang when an NGG workgroup exports
0 total primitives. According to AMD, we always need this workaround
when it is possible that the number of primitives is 0.
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/7232>
This is to make sure we don't compile a shader which doesn't
fit the available LDS space.
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/7232>
