This helps reduce the amount of abstraction in this pass and allows
us to retain more information about the src such as any swizzles.
Retaining the swizzle information is required for a bugfix in a
following patch.

Fixes: 6772a17a ("nir: Add a loop analysis pass")
Tested-by: Brian Paul <brianp@vmware.com>

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>

Just as was allowed by autotools.

Fixes: 108d257a "meson: build libEGL"
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

Apparently the android part was never ported to meson.

CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

Apparently the android part was never ported to meson.

CC: <mesa-stable@lists.freedesktop.org>
Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

For the block BLOCK_TEXEL_VIEW_COMPATIBLE case, this didn't matter
because the flags were already more-or-less what we wanted.  However,
for gen7 stencil shadow images, it still had ISL_SURF_USAGE_STENCIL_BIT
so we were getting W-tiled which isn't what we want for the shadow.  By
passing just ISL_SURF_USAGE_TEXTURE_BIT (and CUBE if we care), we now
get something that's actually texturable.

Fixes: f3ea0cf8 "anv: Add stencil texturing support for gen7"

Copies to a shadow image happen during a VkCmdPipelineBarrier or at
subpass transitions.  We could potentially be a bit more conservative
but these transitions shouldn't happen often and it's better to have our
bases covered.

Fixes: f3ea0cf8 "anv: Add stencil texturing support for gen7"

Most places in NIR, we treat matrices like arrays.  The one annoying
exception to this has been nir_constant where a matrix is a first-class
thing.  This commit changes that so a matrix nir_constant is the same as
an array nir_constant.  This makes matrix nir_constants a tiny bit more
expensive but shrinks all others by 96B.
Reviewed-by: Karol Herbst <kherbst@redhat.com>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

Now that nir_const_value is a scalar, there's no reason why we need
multiple paths here and it's just extra paths to keep working.  While
we're here, we also add a vtn_fail_if check that component indices are
in-bounds.
Reviewed-by: Karol Herbst <kherbst@redhat.com>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

Reviewed-by: Karol Herbst <kherbst@redhat.com>

It only accepts 32-bit integers so it should have a more descriptive
name.  This patch should not be a functional change.
Reviewed-by: Karol Herbst <kherbst@redhat.com>

All of the callers for this function are looking at interpolation
qualifiers and want to make sure they're declared flat.  Any 64-bit
integer inputs need to be flat.  It's also makes the function make more
sense since "integer" is fairly generic.
Reviewed-by: Karol Herbst <kherbst@redhat.com>

All of the callers of this function really just want to know if the type
is an integer and don't care about bit size.
Reviewed-by: Karol Herbst <kherbst@redhat.com>

Even if only variables access flags are changed, the existing NIR
infrastructure expects metadata to be explicitly preserved, so do
that.  Don't care about avoiding preserve to be called twice since the
cost is negligible.

This scenario can be triggered by dead variables, and also by other
intrinsics that read the variables -- but not cause progress to be
made when processing the intrinsics.

Fixes: f2d0e48d "glsl/nir: Add optimization pass for access flags"
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

Unwrap any array in the variable type so we can get the sampler dim.

This fixes piglit test
spec/arb_arrays_of_arrays/execution/image_store/basic-imageStore-const-uniform-index.shader_test.

Fixes: f2d0e48d "glsl/nir: Add optimization pass for access flags"
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

Rather than checking __GLIBC__/__UCLIBC__ macros as a proxy for
execinfo.h presence, just check directly. This allows the build to work
on musl.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

The disk cache code tries to allocate a 256 Kbyte buffer on the stack.
Since musl only gives 80 Kbyte of stack space per thread, this causes a
trap.

See https://wiki.musl-libc.org/functional-differences-from-glibc.html#Thread-stack-size

(In musl-1.1.21 the default stack size has increased to 128K)

[mattst88]: Original author unknown, but I think this is small enough
            that it is not copyrightable.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

%lu is for unsigned long, %zu is for size_t.  Just cast the data.

We don't execute any of the commands to record snapshots, so we can't
actually produce a real result.  We do however need to avoid waiting
on a syncpt which will never be signalled.  So, just return 0.

Support a new virgl bind type for shared buffers.
Signed-off-by: David Riley <davidriley@chormium.org>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>

Using the existing VK_EXT_debug_report extension.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

This brings the nir path in line with the TGSI path.

Totals from affected shaders:
SGPRS: 2984 -> 2984 (0.00 %)
VGPRS: 2792 -> 2652 (-5.01 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 247380 -> 248072 (0.28 %) bytes
LDS: 0 -> 0 (0.00 %) blocks
Max Waves: 121 -> 132 (9.09 %)
Wait states: 0 -> 0 (0.00 %)

Most of the change came from DiRT: Showdown, and came from sinking SSBO
loads.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

No changes with radeonsi shader-db.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

This is simple now, but we're going to be adding a few more conditions
to this later.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

Nothing uses its results yet, that will come with the following commits.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

Right now, this just deduces when we can arbitrarily reorder SSBO and
image loads, matching the existing logic in radeonsi's TGSI->LLVM pass.
This approach can't handle some things that nir_opt_copy_prop_vars can,
but it can handle images, and with GCM it lets us hoist reads outside of
loops. We can also pass this information to LLVM which lets it do its
own optimizations on it.

This is GLSL only as I haven't tested it on Vulkan yet, and it would
probably need a few changes to work there.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

The spec explicitly says that volatile writes can't be removed and
volatile reads do not guarantee that the same value will still be around
after the read, as if there were a barrier after each read/write. Just
ignore them.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

We were completely ignoring these before, except for putting them on
variables. While we're here, don't set access qualifiers when converting
to bindless since glsl_to_nir will already have set a more accurate
qualifier that includes any qualifiers on struct members that are
dereferenced.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

In the next commit, we'll properly handle access qualifiers on struct
members by propagating them to load/store instructions, but these
instructions had no way to specify the qualifier.
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

inaccessiblememonly means that it doesn't modify memory accesible via
normal LLVM pointers. This lets LLVM's dead store elimination, memcpy
forwarding, etc. ignore functions with this attribute. We don't
represent descriptors as pointers, so this property is always true of
buffer and image stores. There are plans to represent descriptors via
pointers, but this just means that now nothing is inaccessiblememonly,
as LLVM will then understand loads/stores via its usual alias analysis.

Radeonsi was mistakenly only setting it if the driver could prove that
there were no reads, and then it was cargo-culted into ac_llvm_build
and ac_llvm_to_nir. Rip it out of everything.

statistics with nir enabled:

Totals from affected shaders:
SGPRS: 152 -> 152 (0.00 %)
VGPRS: 128 -> 132 (3.12 %)
Spilled SGPRs: 0 -> 0 (0.00 %)
Spilled VGPRs: 0 -> 0 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 0 -> 0 (0.00 %) dwords per thread
Code Size: 9324 -> 9244 (-0.86 %) bytes
LDS: 2 -> 2 (0.00 %) blocks
Max Waves: 17 -> 17 (0.00 %)
Wait states: 0 -> 0 (0.00 %)

The only difference was a manhattan31 shader.
Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

close() is in <unistd.h>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

This fixes new CTS dEQP-VK.pipeline.depth_range_unrestricted.*.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>