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radv/rt: Load instance id and custom index on demand

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Stats for Quae II RTX:

57fps -> 57fps

Totals from 7 (14.00% of 50) affected shaders:
VGPRs: 800 -> 784 (-2.00%)
CodeSize: 217868 -> 218308 (+0.20%)
MaxWaves: 62 -> 63 (+1.61%)
Instrs: 40384 -> 40420 (+0.09%); split: -0.01%, +0.10%
Latency: 866315 -> 870692 (+0.51%)
InvThroughput: 199189 -> 196595 (-1.30%); split: -1.75%, +0.45%
VClause: 1058 -> 1077 (+1.80%)
SClause: 1126 -> 1130 (+0.36%)
Copies: 5787 -> 5772 (-0.26%); split: -0.40%, +0.14%
PreVGPRs: 764 -> 750 (-1.83%)

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19159>
This commit is contained in:
Konstantin Seurer
2022-10-19 12:05:33 +02:00
committed by Marge Bot
parent 6fcabb3b02
commit ac01f09d57
4 changed files with 30 additions and 66 deletions
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2
src/amd/vulkan/radv_rt_common.h
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@@ -123,9 +123,7 @@ struct radv_ray_traversal_vars {
nir_deref_instr *instance_bottom_node;
/* Information about the current instance used for culling. */
nir_deref_instr *instance_id;
nir_deref_instr *instance_addr;
nir_deref_instr *custom_instance_and_mask;
nir_deref_instr *sbt_offset_and_flags;
};