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aco/gfx11: fix FS input loads in quad-divergent control flow

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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>
This commit is contained in:
Rhys Perry
2022-10-26 21:11:31 +01:00
committed by Marge Bot
parent 16d2c7ad55
commit 6113ee650a
9 changed files with 147 additions and 33 deletions
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src/amd/compiler/aco_validate.cpp
+1
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@@ -262,6 +262,7 @@ validate_ir(Program* program)
bool can_be_undef = is_phi(instr) || instr->isEXP() || instr->isReduction() ||
instr->opcode == aco_opcode::p_create_vector ||
instr->opcode == aco_opcode::p_jump_to_epilog ||
(instr->opcode == aco_opcode::p_interp_gfx11 && i == 0) ||
(flat && i == 1) || (instr->isMIMG() && (i == 1 || i == 2)) ||
((instr->isMUBUF() || instr->isMTBUF()) && i == 1) ||
(instr->isScratch() && i == 0);