Having a single init function works as expected for shared llvm, but
when using a static llvm only one llvm will get initialized.
This commit introduces 2 separate init function:
- shared llvm = single public init function
- static llvm = one init function for each module using llvm
Fixes: 50d20dc055 ("ac/llvm: export ac_init_llvm_once in targets")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3376
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6253>
Otherwise LLVM does not see the pointers as allowing speculative
loads.
The pipeline-db results are pretty wild, but mostly what is to be
expected from allowing more code movement in LLVM:
Totals from affected shaders:
SGPRS: 157728 -> 168336 (6.73 %)
VGPRS: 158628 -> 158664 (0.02 %)
Spilled SGPRs: 10845 -> 24753 (128.24 %)
Spilled VGPRs: 13 -> 13 (0.00 %)
Private memory VGPRs: 0 -> 0 (0.00 %)
Scratch size: 8 -> 8 (0.00 %) dwords per thread
Code Size: 17189180 -> 17313712 (0.72 %) bytes
LDS: 204 -> 204 (0.00 %) blocks
Max Waves: 5700 -> 5687 (-0.23 %)
Wait states: 0 -> 0 (0.00 %)
This gives some boosts for shaders we can move a descriptor load
outside a loop.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3159>
This option is useless and shouldn't be used at all.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Because some instructions will be optimized by the backend compiler,
the driver has to manually flush to zero to keep the result exact.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is a step towards the goal of being able to build RADV
without LLVM. In the future we would like to offer the option to
use RADV solely with ACO. There is still a need for the common AMD
code located in amd/common but the LLVM specific parts need to be
separated.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
2019-10-08 00:44:08 +00:00
Renamed from src/amd/common/ac_llvm_util.h (Browse further)
