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nir: Add undef phi srcs when adding successors

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Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22913>
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Jesse Natalie 2023-05-08 17:48:20 -07:00 • committed by Marge Bot
parent 5d238c0c2c
commit 505b81b8c1
1 changed files with 3 additions and 0 deletions
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3
src/compiler/nir/nir_control_flow.c
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@ -274,6 +274,7 @@ block_add_normal_succs(nir_block *block)
nir_block *next_block = nir_cf_node_as_block(next);
link_blocks(block, next_block, NULL);
nir_insert_phi_undef(next_block, block);
} else if (parent->type == nir_cf_node_loop) {
nir_loop *loop = nir_cf_node_as_loop(parent);
@ -300,6 +301,8 @@ block_add_normal_succs(nir_block *block)
nir_block *first_else_block = nir_if_first_else_block(next_if);
link_blocks(block, first_then_block, first_else_block);
nir_insert_phi_undef(first_then_block, block);
nir_insert_phi_undef(first_else_block, block);
} else if (next->type == nir_cf_node_loop) {
nir_loop *next_loop = nir_cf_node_as_loop(next);