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nir: Implement ir_unop_get_buffer_size

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This is how backends provide the buffer size required to compute
the size of unsized arrays in the previous patch

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This commit is contained in:
Samuel Iglesias Gonsalvez
2015-06-01 09:44:55 +02:00
parent 750c694474
commit 003ce30e36
2 changed files with 17 additions and 0 deletions
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7
src/glsl/nir/nir_intrinsics.h
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@@ -61,6 +61,13 @@ INTRINSIC(interp_var_at_sample, 1, ARR(1), true, 0, 1, 0,
INTRINSIC(interp_var_at_offset, 1, ARR(2), true, 0, 1, 0,
NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
/*
* Ask the driver for the size of a given buffer. It takes the buffer index
* as source.
*/
INTRINSIC(get_buffer_size, 1, ARR(1), true, 1, 0, 0,
NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
/*
* a barrier is an intrinsic with no inputs/outputs but which can't be moved
* around/optimized in general