Commit graph

8839 commits

Author SHA1 Message Date
Caio Oliveira
68f3b0100f compiler/types: Move C declarations into glsl_types.h
This ensures they'll be visible for the C++ inline implementations.
Reordered the functions to better organize them: queries, getters,
transformers, layout functions.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25470>
2023-10-07 00:42:54 +00:00
Caio Oliveira
2e4802ce45 compiler/types: Move the C++ inline functions in glsl_type out of the struct body
Just move code, will make easier to flip these to be wrappers to the C code.  Keep
those in a separate header file to reduce cluttering glsl_types.h.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25470>
2023-10-07 00:42:54 +00:00
Konstantin Seurer
4625e18619 nir/passthrough_gs: Support edge flags with points
Fixes: 24535ff ("nir: handle edge flags in nir_create_passthrough_gs")
Reviewed-by: Antonino Maniscalco <antonino.maniscalco@collabora.com>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25335>
2023-10-04 23:20:52 +00:00
Rhys Perry
ad5be40303 nir: add fetch inactive index to quad_swizzle_amd/masked_swizzle_amd
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25525>
2023-10-04 18:53:43 +00:00
Danylo Piliaiev
a5f0f7d4b1 turnip,ir3: Implement A7XX push consts load via preamble
New push consts loading consist of:
- Push consts are set for the entire pipeline via HLSQ_SHARED_CONSTS_IMM
  array which could fit up to 256b of push consts.
- For each shader stage that uses push consts READ_IMM_SHARED_CONSTS
  should be set in HLSQ_*_CNTL, otherwise push consts may get overwritten
  by new push consts that are set after the draw.
- Push consts are loaded into consts reg file in a shader preamble via
  stsc at the very start of the preamble.

OPC_PUSH_CONSTS_LOAD_MACRO is used instead of directly translating NIR
intrinsic into stsc because: we don't want to teach legalize pass how
to set (ss) between stores and loads of consts reg file, don't want for
stsc to be reordered, etc.

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25086>
2023-10-04 15:51:54 +00:00
Georg Lehmann
bd16d3cdaf nir/lower_subgroups: use intrinsic builder more
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25501>
2023-10-03 12:49:28 +00:00
Georg Lehmann
289b369597 nir: make quad intrinsic dst bit size match src0
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25501>
2023-10-03 12:49:28 +00:00
Christian Gmeiner
b2e4972339 isaspec: Add BitSetEnumValue object
There might be cases where you describe an enum in isaspec and want it to use
for decoding but also for codegen with e.g. mako.

Lets have a look at the following exmaple:

<enum name="#cond">
	<value val="0" display=""/>    <!-- always: display nothing -->
	<value val="1" display=".gt"/>
	...
</enum>

In the decoding case we want that nothing gets displayed if #cond has the value of "0". For
codegen with mako this could result in the following C code:

enum PACKED cond {
   COND_ = 0,
   COND_GT = 1,
   ...
};

What you really want is this:

enum PACKED cond {
   COND_ALWAYS = 0,
   COND_GT = 1,
   ...
};

To make this possible introduce BitSetEnumValue class which represents
an isaspec xml enum. It holds the value, displayname and now a name.

With the  __str__ method the old behaviour is still intact.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25451>
2023-10-03 12:07:04 +00:00
Christian Gmeiner
b67cac5eba isaspec: Add support for custom meta information
Allows every user of isaspec to add custom meta information
to any bitset. This can be quite handy if you want to know
how many sources your instruction have, if this instruction has
a dest or provide some names for sources that can be used
by some debug tools.

All you need is to sprinkle <meta> tags in the xml file and
provide custom attributes.
  <meta has_dest="1" num_sources="3" .. />

With get_meta() method of any bitset you can get access to
the dict with all the attributes. get_meta() walks the whole
tree to collect all <meta> tags on the way to the root node.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25451>
2023-10-03 12:07:04 +00:00
Christian Gmeiner
eb87ae4286 isaspec: Add method to get all instrustions
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25451>
2023-10-03 12:07:04 +00:00
Christian Gmeiner
ef602e77f6 isaspec: encode: Correct used regex
The current regex misses the = sign and therefore fails to match
DST:align=16.

Fixes: 9e56f69edf ("isaspec: encode: handle special fieldname properties")
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25451>
2023-10-03 12:07:04 +00:00
Christian Gmeiner
2c9a59dcfc isaspec: Add support for templates
If you have a repeating <display> substring you can replace this
substring with a template and reference the template name instead.

Saves from doing lot of copy&paste and makes general changes to the
substring much easier.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25451>
2023-10-03 12:07:04 +00:00
Rhys Perry
7139a78959 nir/constant_folding: remove zero texel offset
fossil-db (navi31):
Totals from 7 (0.01% of 79330) affected shaders:
Instrs: 7001 -> 6993 (-0.11%)
CodeSize: 35736 -> 35692 (-0.12%)
InvThroughput: 3232 -> 3229 (-0.09%)
Copies: 552 -> 549 (-0.54%)
PreSGPRs: 277 -> 273 (-1.44%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25477>
2023-10-02 10:11:37 +00:00
Georg Lehmann
305db1af11 nir: scalarize masked_swizzle_amd created from shuffle_xor
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9901
Fixes: 0ef87f148d ("nir/lower_subgroups: Don't do multiple lowerings at once")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25468>
2023-10-02 09:01:18 +00:00
Alyssa Rosenzweig
10b9c2fa36 nir: Support arrays in block_image_store_agx
For layered rendering, runs once per layer.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2023-10-01 12:32:12 -04:00
Alyssa Rosenzweig
f4042afd57 nir: Add layer_id_written_agx sysval
We'll implement layer ID reads in the frag shader with a varying read, but if
the VS doesn't write the varying we need to return 0 per the spec. Add a sysval
to detect that case so we can handle it at runtime without keys.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2023-10-01 12:32:11 -04:00
Caio Oliveira
80a1896539 compiler/types: Add void parameter to ensure these are valid C prototypes
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
cc1fac52da compiler/types: Spell struct and enum in type names
This is a preparation for moving compiler/types from C++ to C.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
95465b813f compiler/types: Use C compatible cast syntax
This is a preparation for moving compiler/types from C++ to C.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
0158057bd0 compiler/types: Remove use of auto
This is a preparation for moving compiler/types from C++ to C.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
4a8918f7e1 compiler/types: Remove use of references
This is a preparation for moving compiler/types from C++ to C.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
57819effc1 compiler/types: Remove use of new/delete
This is a preparation for moving compiler/types from C++ to C.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Caio Oliveira
dac4901c8a compiler/types: Remove private related declarations
Now there's no private data in glsl_type anymore, so we can remove
the friend declaration and move the private functions into file local
statics.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25445>
2023-09-28 22:43:45 +00:00
Timothy Arceri
2e7514cfa8 glsl: remove now unused varying linker code
All of this varying linking code has now been ported to the NIR linker.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
36e49c162c glsl: switch to nir linkers cross_validate_outputs_to_inputs()
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
7d1948e9b5 glsl: implement cross_validate_outputs_to_inputs() in nir linker
This is mostly a direct port of the GLSL IR code there are only
2 real functional changes.

1. The direct use of mesa symbol_table instead of glsl_symbol_table.
   However since none of the extra functionality offered by
   glsl_symbol_table was ever used here this can be seen as an
   improvement.

2. Because interface blocks are lowered before this new nir linker
   sees them we must explicitly skip them (they are validated
   elsewhere) to avoid errors.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
f2e87c5c28 nir: add used field to nir variables
Will be use in a following path by the glsl nir based linker.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
0bfae24640 glsl: move is_gl_identifier() to linker_util
This had started to multiply around the NIR linker. Here we move it to a
common helper shared by GLSL IR and NIR.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
78b9f1053f glsl: move interpolation_string() to linker_util
Moving it here allows us to use in in the NIR linker too.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Timothy Arceri
337c32cb3a nir: copy explicit_invariant flag to nir vars
This will be used in the following patch.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25371>
2023-09-28 13:55:16 +00:00
Christian Gmeiner
435699de77 isaspec: python does not need ';'
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25437>
2023-09-28 08:15:50 +00:00
Ian Romanick
03c1e67b6c spirv: Track when a shader has a cooperative matrix
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
b98f87612b spirv: Implement SPV_KHR_cooperative_matrix
Includes a modified version of using extract/insert for OpLoad/OpStore
from Ian.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> (earlier version)
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> (earlier version)
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
b17a2c35bc spirv: Let vtn_ssa_value hold references to variables
In certain cases, we have complex opaque objects that are loaded
into (SPIR-V) SSA values.  To represent these, we now can store a
reference to a variable in vtn_ssa_value.

Also implements a few operations we know will have to be supported,
like Select and Copy.

Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
3d7e5ec758 spirv: Expose some memory related functions in vtn_private.h
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
af3eb80afa nir: Handle cooperative matrix in various passes
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
3105d516d0 nir: Add new intrinsics for Cooperative Matrix
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Caio Oliveira
2d0f4f2c17 compiler/types: Add support for Cooperative Matrix types
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23825>
2023-09-28 07:35:02 +00:00
Timothy Arceri
1780102923 nir: fix typo in comment
The variable is unused or dead, not used.

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25414>
2023-09-28 01:54:43 +00:00
Rhys Perry
65afc8bebf nir/algebraic: optimize u2u32(a >> 32)
fossil-db (navi21):
Totals from 352 (0.44% of 79330) affected shaders:
Instrs: 271816 -> 271240 (-0.21%); split: -0.28%, +0.07%
CodeSize: 1546520 -> 1544448 (-0.13%); split: -0.23%, +0.09%
SpillVGPRs: 832 -> 827 (-0.60%); split: -1.08%, +0.48%
Latency: 4037120 -> 4021748 (-0.38%); split: -0.41%, +0.03%
InvThroughput: 1369540 -> 1362066 (-0.55%); split: -0.59%, +0.04%
VClause: 6476 -> 6471 (-0.08%); split: -0.12%, +0.05%
SClause: 6798 -> 6794 (-0.06%)
Copies: 44828 -> 44630 (-0.44%); split: -0.89%, +0.45%
Branches: 8845 -> 8844 (-0.01%); split: -0.05%, +0.03%
PreSGPRs: 14684 -> 14659 (-0.17%)

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25409>
2023-09-27 22:13:01 +00:00
Rhys Perry
bcdac65ca3 nir/lower_int64: fix find_lsb(0)
If the high 32 bits were zero, this would be umin(find_lsb(lo), 31). This
evaluates to 31 if lo is also zero, instead of -1.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes: 9293d8e64b ("nir: Add find_lsb lowering to nir_lower_int64.")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25409>
2023-09-27 22:13:01 +00:00
Karol Herbst
807ff7ed01 nir: add nir_lower_alu_vec8_16_srcs pass
This pass is useful for vector based backends as we might end up with alu
instructions referencing vec8/vec16 values even though being vec4 or
smaller themselves.

This new pass intents to clean up any use of vec8/vec16 sources other
passes won't.

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25330>
2023-09-27 11:54:13 +00:00
Samuel Pitoiset
1ce80653b2 nir: rename atomic_add_gs_invocation_count_amd to make it more generic
It will be re-used to implement mesh/tash shader invocations queries.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25331>
2023-09-26 07:50:15 +00:00
Caio Oliveira
63ab985511 util: Use an opaque type for linear context
In the linear allocation only the parent (context) can be used
to allocate new children, so let's use an opaque type to identify
the linear context.  This is similar to what's done in GC allocator.

Update the documentation and a couple of function names to
refer to linear context instead of linear parent.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25280>
2023-09-25 17:26:17 +00:00
Caio Oliveira
aec516ead6 util: Remove size from linear_parent creation
None of the callsites took advantage of this, so remove
the feature.  This will help to a next change that will
add an opaque type to represent a linear parent.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25280>
2023-09-25 17:26:17 +00:00
Caio Oliveira
e55aa87f32 compiler: Only enable mesaclc helper if we have OpenCL SPIR-V support
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25341>
2023-09-22 15:29:25 +00:00
Caio Oliveira
3988d901ac meson: Remove unnecessary inc_compiler mentions
The inc_compiler should come as part of idep_compiler, idep_nir or
idep_nir_headers dependency.

Acked-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com> (v3dv)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25314>
2023-09-22 14:52:50 +00:00
Caio Oliveira
ec835595f0 compiler: Use a meson dependency for libcompiler
That will make sure the include directories are passed on and also
make sure the generated headers are properly built before whoever code
depends on it. NIR dependency propagates that dependency too.

Since the right include directory is always propagated, we can remove
the extra "compiler/" prefix from the `#include`s in glsl_types.h.

Note: NIR has a special "header only" dependency, so include the
generated headers for compiler there too.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9843
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25314>
2023-09-22 14:52:50 +00:00
Konstantin Seurer
be8a73f40d nir/deref: Layer rematerialization helpers
nir_rematerialize_derefs_in_use_blocks_impl can be implemented on top of
nir_rematerialize_deref_in_use_blocks.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23712>
2023-09-22 10:05:58 +00:00
Konstantin Seurer
439e8c42cc nir/lcssa: Fix rematerializing derefs
This would pull derefs out of loops by emitting the pattern
`deref(phi(deref))` which is not allowed by nir_validate.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23712>
2023-09-22 10:05:58 +00:00