i965 turns fddx/fddy into their coarse/fine variants based on the
ctx->Hint.FragmentShaderDerivative setting. It needs to know whether
this can impact a shader in order to better guess NOS settings.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
It's rather surprising that we've never actually hit this before.
Aparently, Ian's SPIR-V generator currently claims the Simple when you
don't do anything complex. We really shouldn't assert-fail on it.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: mesa-stable@lists.freedesktop.org
From the OpenGL 4.6 spec, section 4.4.1 Input Layout Qualifiers, Page 68,
(Location aliasing):
"Further, when location aliasing, the aliases sharing the location
must have the same underlying numerical type (floating-point or
integer)."
The current implementation is too strict, since it checks that the
the base types are an exact match instead.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
v2:
- we only need to validate inputs to the first stage and outputs
from the last stage, everything else has already been validated
during cross_validate_outputs_to_inputs (Timothy).
- Use MAX_VARYING instead of MAX_VARYINGS_INCL_PATCH (Illia)
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
For non-SSO programs, we only need to validate outputs, since
the cross validation of outputs to inputs will ensure that we
produce linker errors for invalid inputs too.
Hoever, for the SSO path there is no output to input validation,
so we need to validate inputs explicitly. Generalize the function
so it can handle this as well.
Also, notice that vertex shader inputs and fragment shader outputs
are already validated in assign_attribute_or_color_locations()
for both SSO and non-SSO paths, so we should not try to validate
that here again (in fact, the function would require explicit
paths to handle these two cases properly).
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Currently, we only validate explicit locations for non-SSO programs.
This creates a helper that we can call from both SSO and non-SSO paths
directly, so we can reuse all the logic behind this.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
From ARB_enhanced_layouts:
"[...]when location aliasing, the aliases sharing the location
must have the same underlying numerical type (floating-point or
integer) and the same auxiliary storage and
interpolation qualification.[...]"
Add code to the linker to validate that aliased locations do
have the same aux storage.
Fixes:
KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_auxiliary_storage
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
From ARB_enhanced_layouts:
"[...]when location aliasing, the aliases sharing the location
must have the same underlying numerical type (floating-point or
integer) and the same auxiliary storage and
interpolation qualification.[...]"
Add code to the linker to validate that aliased locations do
have the same interpolation.
Fixes:
KHR-GL45.enhanced_layouts.varying_location_aliasing_with_mixed_interpolation
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
The existing code was checking the whole interface variable rather
than its members, which is not what we want: we want to check
aliasing for each member in the interface variable.
Surprisingly, there are piglit tests that verify this and were
passing due to a bug in the existing code: when we were computing
the last component used by an interface variable we would use
the 'vector' path and multiply by vector_elements, which is 0 for
interface variables. This made the loop that checks for aliasing
be a no-op and not add the interface variable to the list of outputs
so then we would fail to link when we did not see a matching output
for the same input in the next stage. Since the tests expect a
linker error to happen, they would pass, but not for the right
reason.
Unfortunately, the current implementation uses ir_variable instances
to keep track of explicit locations. Since we don't have
ir_variables instances for individual interface members, we need
to have a custom struct with the data we need. This struct has
the ir_variable (which for interface members is the whole
interface variable), plus the data that we need to validate for
each aliased location, for now only the base type, which for
interface members we will take from the appropriate field inside
the interface variable.
Later patches will expand this custom struct so we can also check
other requirements for location aliasing, specifically that
we have matching interpolation and auxiliary storage, that once
again, we will take from the appropriate field members for the
interface variables.
v2:
- Use MAX_VARYING instead of MAX_VARYINGS_INCL_PATCH (Illia)
Fixes:
KHR-GL45.enhanced_layouts.varying_block_automatic_member_locations
Fixes (these were passing before but for incorrect reasons):
tests/spec/arb_enhanced_layouts/linker/block-member-locations/named-block-member-location-overlap.shader_test
tests/spec/arb_enhanced_layouts/linker/block-member-locations/named-block-member-mixed-order-overlap.shader_test
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Move the checks for explicit locations to a separate function. We
will use this in a follow-up patch to validate locations for interface
variables where we need to validate each interface member rather than
the interface variable itself.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
We were assuming that if an input has an invalid explicit location it would
fail to link because it would not find the corresponding output, however,
since we look for the matching output by indexing the explicit_locations
array with the input location, we still need to ensure that we don't index
out of bounds.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit fixes two issues: First, we were returning false regardless
of whether or not the function made progress. Second, we were calling
nir_metadata_preserve far more often than needed; we only need to call
it once per impl.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
There are two issues with the current implementation. First, it relies
on the layout(local_size_*) happening in the same shader as the main
function, and secondly it doesn't work for variable group sizes.
In both cases, the simplest fix is to move the setup of these derived
values to a later time, similar to how the gl_VertexID workarounds are
done. There already exist system values defined for both of the derived
values, so we use them unconditionally, and lower them after linking is
performed.
While we're at it, we move to using gl_LocalGroupSizeARB instead of
gl_WorkGroupSize for variable group sizes.
Also the dead code elimination avoidance can be removed, since there
can be situations where gl_LocalGroupSizeARB is needed but has not been
inserted for the shader with main function. As a result, the lowering
code has to insert its own copies of the system values if needed.
Reported-by: Stephane Chevigny <stephane.chevigny@polymtl.ca>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103393
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
The pass only looks at var load/store intrinsics, not input load/store
intrinsics, so assert that we don't see the other type.
v2: Adjust comment indentation.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
v2:
- Use helper to add a new source to the texture instruction.
v3:
- Use nir_tex_instr_src_index() to simplify the patch (Jason).
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
We only need to add a check to validate output locations here. For
inputs with invalid locations we will fail to link when we can't
find a matching output in the same (invalid) location.
v2: compute location slots properly depending on shader stage and
variable type / direction
Fixes:
KHR-GL45.enhanced_layouts.varying_location_limit
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
We won't split varyings marked as always active because there
is no point in doing so. This means we need to mark both
sides of the interface as always active otherwise we will have
a mismatch and start removing things we shouldn't.
Reviewed-by: Eric Anholt <eric@anholt.net>
This is intended to be called before nir_lower_io() so that we
can do some linking optimisations with the results. It can also
be used with drivers that don't use nir_lower_io() at all such
as RADV.
v2: pass mode mask rather than first and last stage integer.
Reviewed-by: Eric Anholt <eric@anholt.net>
Since blob.h moved up to src/compiler the test should include that
instead of src/compiler/glsl
fixes: 0e3bd56c6e ("compiler: Move blob up a level")
Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
There are certain advantages to using uint8_t internally such as
well-defined arithmetic on all platforms. However, interfaces that
work in terms of raw data should use a void* type.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
These helpers not only call blob_reserve_bytes but also make sure that
the blob is properly aligned as if blob_write_* were called.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Despite the name, it could only be used if you immediately wrote to the
pointer. Noboby was using it outside of one test, so clearly this
behavior wasn't that useful. Instead, make it return an offset into the
data buffer so that the result isn't invalidated if you later write to
the blob. In conjunction with blob_overwrite_bytes(), this will be
useful for leaving a placeholder and then filling it in later, which
we'll need to do for handling phi nodes when serializing NIR.
v2 (Jason Ekstrand):
- Detect overflow in the offset + to_write computation
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
These can be used to easily count up the number of bytes that will be
required by "writing" it into the NULL blob.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
There's no reason why that tiny bit of memory needs to be on the heap.
We always put blob_reader on the stack, so why not do the same with the
writable blob.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
We're going to want to use the blob for Vulkan pipeline caching so it
makes sense to have it in libcompiler not libglsl.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
