Mesa (main): radeonsi: treat nir_intrinsic_load_constant as a VMEM operation
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Thu Nov 4 09:04:39 UTC 2021
Module: Mesa
Branch: main
Commit: dc56301f78494bea67f0c57d5aa77fef42bfe455
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=dc56301f78494bea67f0c57d5aa77fef42bfe455
Author: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Date: Wed Oct 27 14:44:54 2021 +0200
radeonsi: treat nir_intrinsic_load_constant as a VMEM operation
This is used by variable indexing of constant arrays, to build
code like this:
s_add_u32 s6, s6, const_data at rel32@lo+4
s_addc_u32 s7, s7, const_data at rel32@hi+12
[...]
global_load_dword v4, v4, s[6:7
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5118
Fixes: 8288882965b ("radeonsi: set MEM_ORDERED optimally")
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13550>
---
src/gallium/drivers/radeonsi/si_shader_nir.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index ed07fa7e0a7..3d968dcda8a 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -245,6 +245,9 @@ static void scan_instruction(const struct nir_shader *nir, struct si_shader_info
if (!nir_src_is_const(intr->src[1]))
info->uses_vmem_return_type_other = true;
break;
+ case nir_intrinsic_load_constant:
+ info->uses_vmem_return_type_other = true;
+ break;
case nir_intrinsic_load_barycentric_at_sample: /* This loads sample positions. */
case nir_intrinsic_load_tess_level_outer: /* TES input read from memory */
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