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agx: Handle splits of uniforms

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This is straightforward, and can happen with certain u2u16 patterns.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22891>
This commit is contained in:
Alyssa Rosenzweig 2023-04-09 09:42:33 -04:00
parent 221b329a98
commit 632014ece0
1 changed files with 8 additions and 4 deletions
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12
src/asahi/compiler/agx_register_allocate.c
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@ -563,23 +563,27 @@ agx_ra(agx_context *ctx)
agx_remove_instruction(ins);
continue;
} else if (ins->op == AGX_OPCODE_SPLIT) {
assert(ins->src[0].type == AGX_INDEX_REGISTER);
unsigned base = ins->src[0].value;
unsigned width = agx_size_align_16(agx_split_width(ins));
assert(ins->src[0].type == AGX_INDEX_REGISTER ||
ins->src[0].type == AGX_INDEX_UNIFORM);
struct agx_copy copies[4];
assert(ins->nr_dests <= ARRAY_SIZE(copies));
unsigned n = 0;
unsigned width = agx_size_align_16(agx_split_width(ins));
/* Move the sources */
agx_foreach_dest(ins, i) {
if (ins->dest[i].type != AGX_INDEX_REGISTER)
continue;
agx_index src = ins->src[0];
src.size = ins->dest[i].size;
src.value += (i * width);
copies[n++] = (struct agx_copy){
.dest = ins->dest[i].value,
.src = agx_register(base + (i * width), ins->dest[i].size),
.src = src,
};
}