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spirv: mark variables decorated with XfbBuffer as always active

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Otherwise, they are removed during NIR linking or in some
lowering passes.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Samuel Pitoiset 2018-10-05 14:39:01 +02:00
parent 5bd03d02c1
commit a1bc152340
1 changed files with 1 additions and 0 deletions
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src/compiler/spirv/vtn_variables.c
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@ -1326,6 +1326,7 @@ apply_var_decoration(struct vtn_builder *b,
case SpvDecorationXfbBuffer:
var_data->explicit_xfb_buffer = true;
var_data->xfb_buffer = dec->literals[0];
var_data->always_active_io = true;
break;
case SpvDecorationXfbStride:
var_data->explicit_xfb_stride = true;