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-rw-r--r--src/compiler/spirv/vtn_alu.c31
1 files changed, 22 insertions, 9 deletions
diff --git a/src/compiler/spirv/vtn_alu.c b/src/compiler/spirv/vtn_alu.c
index b6f98483ec6..5f9cc97fdfb 100644
--- a/src/compiler/spirv/vtn_alu.c
+++ b/src/compiler/spirv/vtn_alu.c
@@ -251,10 +251,17 @@ vtn_handle_bitcast(struct vtn_builder *b, struct vtn_ssa_value *dest,
vtn_assert(src_bit_size % dest_bit_size == 0);
unsigned divisor = src_bit_size / dest_bit_size;
for (unsigned comp = 0; comp < src_components; comp++) {
- vtn_assert(src_bit_size == 64);
- vtn_assert(dest_bit_size == 32);
- nir_ssa_def *split =
- nir_unpack_64_2x32(&b->nb, nir_channel(&b->nb, src, comp));
+ nir_ssa_def *split;
+ if (src_bit_size == 64) {
+ assert(dest_bit_size == 32 || dest_bit_size == 16);
+ split = dest_bit_size == 32 ?
+ nir_unpack_64_2x32(&b->nb, nir_channel(&b->nb, src, comp)) :
+ nir_unpack_64_4x16(&b->nb, nir_channel(&b->nb, src, comp));
+ } else {
+ vtn_assert(src_bit_size == 32);
+ vtn_assert(dest_bit_size == 16);
+ split = nir_unpack_32_2x16(&b->nb, nir_channel(&b->nb, src, comp));
+ }
for (unsigned i = 0; i < divisor; i++)
dest_chan[divisor * comp + i] = nir_channel(&b->nb, split, i);
}
@@ -263,11 +270,17 @@ vtn_handle_bitcast(struct vtn_builder *b, struct vtn_ssa_value *dest,
unsigned divisor = dest_bit_size / src_bit_size;
for (unsigned comp = 0; comp < dest_components; comp++) {
unsigned channels = ((1 << divisor) - 1) << (comp * divisor);
- nir_ssa_def *src_chan =
- nir_channels(&b->nb, src, channels);
- vtn_assert(dest_bit_size == 64);
- vtn_assert(src_bit_size == 32);
- dest_chan[comp] = nir_pack_64_2x32(&b->nb, src_chan);
+ nir_ssa_def *src_chan = nir_channels(&b->nb, src, channels);
+ if (dest_bit_size == 64) {
+ assert(src_bit_size == 32 || src_bit_size == 16);
+ dest_chan[comp] = src_bit_size == 32 ?
+ nir_pack_64_2x32(&b->nb, src_chan) :
+ nir_pack_64_4x16(&b->nb, src_chan);
+ } else {
+ vtn_assert(dest_bit_size == 32);
+ vtn_assert(src_bit_size == 16);
+ dest_chan[comp] = nir_pack_32_2x16(&b->nb, src_chan);
+ }
}
}
dest->def = nir_vec(&b->nb, dest_chan, dest_components);