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nir: Add nir_builder_at

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Creates and returns a nir_builder from a cursor. The nir_function_impl
is retrieved using said cursor. This should be fine as long as it is not
used on extracted control flow.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Faith Ekstrand <faith.ekstrand@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23883>
This commit is contained in:
Konstantin Seurer
2023-06-27 12:53:06 +02:00
committed by Marge Bot
parent b774d5f9d5
commit a7cd206937
1 changed files with 12 additions and 0 deletions
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12
src/compiler/nir/nir_builder.h
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@@ -58,6 +58,18 @@ nir_builder_create(nir_function_impl *impl)
return b;
}
/* Requires the cursor to be inside a nir_function_impl. */
static inline nir_builder
nir_builder_at(nir_cursor cursor)
{
nir_cf_node *current_block = &nir_cursor_current_block(cursor)->cf_node;
nir_builder b;
nir_builder_init(&b, nir_cf_node_get_function(current_block));
b.cursor = cursor;
return b;
}
nir_builder MUST_CHECK PRINTFLIKE(3, 4)
nir_builder_init_simple_shader(gl_shader_stage stage,
const nir_shader_compiler_options *options,