Comment # 7
on bug 98238
from Arek Ruśniak
Ok, I think I've found big part of this problem: author Marek Olšák <marek.olsak@amd.com> 2016-09-13 15:33:23 (GMT) committer Marek Olšák <marek.olsak@amd.com> 2016-09-14 10:33:00 (GMT) commit ab29788250a705eb0dd517cb3d38f37f944eb8ad (patch) radeonsi: reload PS inputs with direct indexing at each use (v2) The LLVM compiler can CSE interp intrinsics thanks to LLVMReadNoneAttribute. 26011 shaders in 14651 tests Totals: SGPRS: 1146340 -> 1132676 (-1.19 %) VGPRS: 727371 -> 711730 (-2.15 %) Spilled SGPRs: 2218 -> 2078 (-6.31 %) Spilled VGPRs: 369 -> 369 (0.00 %) Scratch VGPRs: 1344 -> 1344 (0.00 %) dwords per thread Code Size: 35841268 -> 36009732 (0.47 %) bytes LDS: 767 -> 767 (0.00 %) blocks Max Waves: 222559 -> 224779 (1.00 %) Wait states: 0 -> 0 (0.00 %) v2: don't call load_input for fragment shaders in emit_declaration videos from "last good" and "first bad": https://youtu.be/X3Zqb-cYssg https://youtu.be/73X9SVf6_1g
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