When building the CFG the instructions are taken of the list in
fs_visitor and added to the lists inside each block. The single
"exec_node" in the instruction is used for those memberships.
In the case the pass rebuilt the CFG, it had no instructions, so
calculate_cfg() had nothing to work with. For now fix the bug by
pulling all the instructions back to the original list.
We can do better here, but punting until upcoming work on
CFG itself.
Issue found in an unpublished CTS test. Small reproduction in our
unit tests now enabled.
Fixes: 65237f8bbc ("intel/fs: Don't add MOV instructions to DO blocks in combine constants")
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27131>
Add a simple test to kick off the infrastructure. And also a test
(for now disabled) that fails because the code is returning an
empty shader. Next patch will fix and enable it.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27131>
This user-settable flag affects compiler output, so it should be tracked
in the cache hash.
Fixes: 3756f60558 ("intel/fs: DPAS lowering")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Suggested-by: Lionel Landwerlin
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26993>
Fix defects reported by Coverity Scan.
Evaluation order violation (EVALUATION_ORDER)
write_write_typo: In reg_file = reg_file = brw_inst_dpas_3src_dst_reg_file(devinfo, inst),
reg_file is written twice with the same value.
Fixes: 1c92dad5cb ("intel/disasm: Disassembly support for DPAS")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27056>
These use different tables but map to the same bits, so it is just
a matter of picking the right tables for the instruction.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26860>
We always set exec size to 16 for this MOV, but the execution group remains
from the previous emitted instruction. This can cause emitting a group
which violates PRM restriction for ChanOff: "The execution size (ExecSize)
must be a factor of the chosen offset."
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25657>
There are two "Src1.Length" with different formats in "send" description
in the PRMs. One is part of ExMsgDesc, is relevant for LSC SFIDs, and
exists if [ExDesc.IsReg]==false. The other is just a 5-bit immediate,
is relevant for other SFIDs too, and exists if ([ExDesc.IsReg]==true)
AND ([ExBSO]==true).
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25657>
Having the reg set with predication disabled shouldn't cause any problems
during the execution. But when decompiling such instruction the flag won't
be shown in the output, so the recompiling will cause
functionally-identical but binary-different code. Fixing this makes
disasm/asm testing easier.
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25657>
This can be useful for testing i965_disasm and i965_asm by comparing
bin -> asm -> bin results.
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25657>
This removes output like
```
CS SIMD16 shader: 2790 inst, 0 loops, 24804 cycles, 166:106 spills:fills, 35 sends,
scheduled with mode top-down, Promoted 1 constants, compacted 44640 to 41424 bytes.
```
from the default builds. Like other debug output in intel_clc, they can
re-enabled with INTEL_DEBUG=cs.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26939>
In practice it seems we are always entering here, haven't looked
in detail whether at this point we could just assert. But for now
only allocate a new acp_entry if we are going to add it.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25670>
On Xe2+, we don't build the SIMD8 shader so this check makes sure we
don't execute the uninitialized invocations.
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26886>
Gen5 adds some boolean conversion instructions after nir emits,
but that nir srcs don't line up with them, so reemit the boolean
conversion if we reemit the inot.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 31b5f5a51f ("nir/opt_if: Simplify if's with general conditions")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26782>
This removed a bunch of calls from the vec4 code that aren't called anywhere else.
Bring back the bits that were removed.
Fixes glxgears on gen5
Fixes: 81594d0db1 ("intel/compiler: Move earlier scheduler code that is not mode-specific")
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26862>
These macro define is compute from literals, so use ALIGN_POT instead of ALIGN function
so that it's can be computed at compile time
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26864>
When the source destination index is a constant, we can avoid generating
a lot of the intermediate code. At the very least, this makes initial
NIR dumps much easier to read.
v2: Simplify tracking of dst_index. Suggested by Caio.
Suggested-by: Caio
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25994>
v2: Fix parameter order in nir_intrinsic_dpas_intel to DPAS conversion.
v3: Fix float16 destination DPAS on DG2.
v4: Use nir_component_mask(...) instead of 0xffff. Suggested by Caio.
v5: Rebase on !26323.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25994>
Implements integer dot product lowering both with and without
DP4A. Implements half-float dot product lowering.
There are a couple FINISHME comments describing future optimizations.
v2: Add a brw_compiler::lower_dpas flag to track when the lowering
should be applied.
v3: Use is_null() instead of checking file != ARF. Suggested by Caio.
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25994>
