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agx: fix dead phis

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Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36257>
This commit is contained in:
Alyssa Rosenzweig
2025-07-19 18:39:03 -04:00
committed by Marge Bot
parent b9c2579ae0
commit cbbc24a473
1 changed files with 10 additions and 1 deletions
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src/asahi/compiler/agx_compile.c
+10 -1
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@@ -3256,7 +3256,16 @@ agx_optimize_nir(nir_shader *nir, bool soft_fault, uint16_t *preamble_size,
NIR_PASS(_, nir, nir_opt_sink, move_all);
NIR_PASS(_, nir, nir_opt_move, move_all);
NIR_PASS(_, nir, nir_lower_all_phis_to_scalar);
NIR_PASS(progress, nir, nir_lower_all_phis_to_scalar);
/* After lowering phis to scalar, we must copy prop/DCE for correctness. RA
* can't deal with dead phis.
*/
do {
NIR_PASS(progress, nir, nir_copy_prop);
NIR_PASS(progress, nir, nir_opt_dce);
progress = false;
} while (progress);
}
/*