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agx: Add agx_nir_opt_preamble pass

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This pass creates preamble shaders. The heavylifting is done by
nir_opt_preamble. We do need to define the cost model for nir_opt_preamble, set
up 16-bit units for the register file, and scalarize the resulting
load/store_preamble intrinsics.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18813>
This commit is contained in:
Alyssa Rosenzweig
2022-09-25 20:03:26 -04:00
parent 328eef2c3c
commit 5e8b0289c3
3 changed files with 173 additions and 0 deletions
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src/asahi/compiler/agx_compiler.h
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@@ -790,6 +790,7 @@ void agx_liveness_ins_update(BITSET_WORD *live, agx_instr *I);
bool agx_lower_resinfo(nir_shader *s);
bool agx_nir_lower_array_texture(nir_shader *s);
bool agx_nir_opt_preamble(nir_shader *s, unsigned *preamble_size);
#ifdef __cplusplus
} /* extern C */