fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-24 21:50:12 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

ac/nir: split 8-bit SSBO stores on GFX6

Browse source 
Due to possible alignment issues, make sure to split stores of
8-bit vectors.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4339>
This commit is contained in:
Samuel Pitoiset 2020-01-29 14:38:55 +01:00 • committed by Marge Bot
parent 433f3380eb
commit c6bf1597d1
1 changed files with 9 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/amd/llvm/ac_nir_to_llvm.c
View file

@ -1740,6 +1740,15 @@ static void visit_store_ssbo(struct ac_nir_context *ctx,
count = 1;
num_bytes = 2;
}
/* Due to alignment issues, split stores of 8-bit vectors. */
if (ctx->ac.chip_class == GFX6 &&
elem_size_bytes == 1 && count > 1) {
writemask |= ((1u << (count - 1)) - 1u) << (start + 1);
count = 1;
num_bytes = 1;
}
data = extract_vector_range(&ctx->ac, base_data, start, count);
offset = LLVMBuildAdd(ctx->ac.builder, base_offset,