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intel/cs_intrinsics: Handle 64-bit intrinsics

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It's safe to do the math in 32 bits because they're all local workgroup
calculations.  We just need to do a conversion at the end.  For a couple
of intrinsics, we just turn them into 32-bit intrinsics and add a u2u64.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6280>
This commit is contained in:
Jason Ekstrand
2018-11-14 21:57:59 -06:00
committed by Marge Bot
parent 8d62735b47
commit 8e1de8e5ac
1 changed files with 15 additions and 0 deletions
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15
src/intel/compiler/brw_nir_lower_cs_intrinsics.c
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@@ -53,6 +53,18 @@ lower_cs_intrinsics_convert_block(struct lower_intrinsics_state *state,
nir_ssa_def *sysval;
switch (intrinsic->intrinsic) {
case nir_intrinsic_load_local_group_size:
case nir_intrinsic_load_work_group_id:
/* Convert this to 32-bit if it's not */
if (intrinsic->dest.ssa.bit_size == 64) {
intrinsic->dest.ssa.bit_size = 32;
sysval = nir_u2u64(b, &intrinsic->dest.ssa);
nir_ssa_def_rewrite_uses_after(&intrinsic->dest.ssa,
nir_src_for_ssa(sysval),
sysval->parent_instr);
}
continue;
case nir_intrinsic_load_local_invocation_index:
case nir_intrinsic_load_local_invocation_id: {
/* First time we are using those, so let's calculate them. */
@@ -171,6 +183,9 @@ lower_cs_intrinsics_convert_block(struct lower_intrinsics_state *state,
continue;
}
if (intrinsic->dest.ssa.bit_size == 64)
sysval = nir_u2u64(b, sysval);
nir_ssa_def_rewrite_uses(&intrinsic->dest.ssa, nir_src_for_ssa(sysval));
nir_instr_remove(&intrinsic->instr);