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authorRhys Perry <pendingchaos02@gmail.com>2022-10-26 21:11:31 +0100
committerMarge Bot <emma+marge@anholt.net>2022-11-01 12:42:43 +0000
commit6113ee650a272dc737a200e276de474e083a2fdf (patch)
tree1e2a309793c6662db91a431f2a659c7ad47a7039 /src/amd/compiler/aco_register_allocation.cpp
parent16d2c7ad557b46104f91365ab3405f0a3ed7e36d (diff)
downloadmesa-6113ee650a272dc737a200e276de474e083a2fdf.tar.gz
aco/gfx11: fix FS input loads in quad-divergent control flow
This is not ideal and it would be great to somehow make it better some day. fossil-db (gfx1100): Totals from 5208 (3.86% of 135032) affected shaders: MaxWaves: 127058 -> 126962 (-0.08%); split: +0.01%, -0.09% Instrs: 3983440 -> 4072736 (+2.24%); split: -0.00%, +2.24% CodeSize: 21872468 -> 22230852 (+1.64%); split: -0.00%, +1.64% VGPRs: 206688 -> 206984 (+0.14%); split: -0.05%, +0.20% Latency: 37447383 -> 37491197 (+0.12%); split: -0.05%, +0.17% InvThroughput: 6421955 -> 6422348 (+0.01%); split: -0.03%, +0.03% VClause: 71579 -> 71545 (-0.05%); split: -0.09%, +0.04% SClause: 148289 -> 147146 (-0.77%); split: -0.84%, +0.07% Copies: 259011 -> 258084 (-0.36%); split: -0.61%, +0.25% Branches: 101366 -> 101314 (-0.05%); split: -0.10%, +0.05% PreSGPRs: 223482 -> 223460 (-0.01%); split: -0.21%, +0.20% PreVGPRs: 184448 -> 184744 (+0.16%) Signed-off-by: Rhys Perry <pendingchaos02@gmail.com> Reviewed-by: Daniel Schürmann <daniel@schuermann.dev> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19370>
Diffstat (limited to 'src/amd/compiler/aco_register_allocation.cpp')
-rw-r--r--src/amd/compiler/aco_register_allocation.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index 9cbc20810aa..0a3401ead49 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -607,7 +607,9 @@ get_subdword_definition_info(Program* program, const aco_ptr<Instruction>& instr
amd_gfx_level gfx_level = program->gfx_level;
if (instr->isPseudo()) {
- if (gfx_level >= GFX8)
+ if (instr->opcode == aco_opcode::p_interp_gfx11)
+ return std::make_pair(4u, 4u);
+ else if (gfx_level >= GFX8)
return std::make_pair(rc.bytes() % 2 == 0 ? 2 : 1, rc.bytes());
else
return std::make_pair(4, rc.size() * 4u);