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nv50/ir/nir: convert 8/16 bit src to 32 bit for {i,u}2f64

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Converting signed and unsigned integers from 8/16 bit sources to a 64 bit
floating point destination (i2f64 / u2f64) isn't possible, hence convert
the source to 32 bit first.

Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18109>
This commit is contained in:
Danilo Krummrich 2022-09-08 02:25:10 +02:00
parent 78fc5e3773
commit 109d56f612
1 changed files with 9 additions and 0 deletions
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9
src/nouveau/codegen/nv50_ir_from_nir.cpp
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@ -3291,6 +3291,15 @@ Converter::lowerBitSizeCB(const nir_instr *instr, void *data)
return 0;
}
case nir_op_i2f64:
case nir_op_u2f64: {
DataType stype = instance->getSTypes(alu)[0];
if (isIntType(stype) && (typeSizeof(stype) <= 2))
return 32;
return 0;
}
default:
return 0;
}