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We already emit ineg as isub most of the time. The results are a bit mixed, but shouldn't really make a difference. A couple of additional copies are needed as isub writes scc. Totals from 5975 (4.29% of 139391) affected shaders: CodeSize: 31508648 -> 31509264 (+0.00%); split: -0.00%, +0.00% Instrs: 6073379 -> 6073531 (+0.00%); split: -0.00%, +0.00% Cycles: 47186280 -> 47187116 (+0.00%); split: -0.00%, +0.00% VMEM: 2528515 -> 2529139 (+0.02%); split: +0.03%, -0.01% SMEM: 596842 -> 596924 (+0.01%); split: +0.02%, -0.00% SClause: 280596 -> 280594 (-0.00%) Copies: 288554 -> 288669 (+0.04%); split: -0.00%, +0.04% PreSGPRs: 240390 -> 240397 (+0.00%) PreVGPRs: 349630 -> 349749 (+0.03%) Reviewed-by: Rhys Perry <pendingchaos02@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8425> |
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| amd | ||
| android_stub | ||
| broadcom | ||
| compiler | ||
| drm-shim | ||
| egl | ||
| etnaviv | ||
| freedreno | ||
| gallium | ||
| gbm | ||
| getopt | ||
| glx | ||
| gtest | ||
| hgl | ||
| imgui | ||
| intel | ||
| loader | ||
| mapi | ||
| mesa | ||
| microsoft | ||
| nouveau | ||
| panfrost | ||
| util | ||
| virtio | ||
| vulkan | ||
| meson.build | ||
| SConscript | ||