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intel/fs: Allow UB, B, and HF types in brw_nir_reduction_op_identity 

Because byte immediates aren't a thing on GEN hardware, we return a
signed or unsigned word immediate in the byte case.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
This commit is contained in:
Jason Ekstrand 2019-04-27 04:31:31 -05:00
parent 10532c6831
commit 3515c0e9cf
1 changed files with 7 additions and 1 deletions
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8
src/intel/compiler/brw_fs_nir.cpp
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@ -3870,8 +3870,14 @@ brw_nir_reduction_op_identity(const fs_builder &bld,
{
nir_const_value value = nir_alu_binop_identity(op, type_sz(type) * 8);
switch (type_sz(type)) {
case 1:
if (type == BRW_REGISTER_TYPE_UB) {
return brw_imm_uw(value.u8);
} else {
assert(type == BRW_REGISTER_TYPE_B);
return brw_imm_w(value.i8);
}
case 2:
assert(type != BRW_REGISTER_TYPE_HF);
return retype(brw_imm_uw(value.u16), type);
case 4:
return retype(brw_imm_ud(value.u32), type);