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nir/opt_loop: stop recursion at loop header phi in can_constant_fold()

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40349>
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Daniel Schürmann 2026-03-26 13:54:00 +01:00 • committed by Marge Bot
parent 1f9a0490c6
commit 738cc6a7db
1 changed files with 1 additions and 1 deletions
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2
src/compiler/nir/nir_opt_loop.c
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@ -321,7 +321,7 @@ can_constant_fold(nir_scalar scalar, nir_block *loop_header)
nir_block *preheader = nir_block_cf_tree_prev(loop_header);
nir_phi_instr *phi = nir_def_as_phi(scalar.def);
nir_phi_src *src = nir_phi_get_src_from_block(phi, preheader);
return can_constant_fold(nir_get_scalar(src->src.ssa, 0), loop_header);
return nir_src_is_const(src->src);
}
return false;