Daniel Schürmann dce695b24f aco: refactor and speed-up dead code analysis ...

Assuming that no loop header phis are dead code,
we can perform the dead code analysis in a single iteration.

Totals from 25 (0.03% of 79330) affected shaders: (GFX11)

MaxWaves: 664 -> 662 (-0.30%)
Instrs: 487618 -> 488822 (+0.25%)
CodeSize: 2451548 -> 2459756 (+0.33%)
VGPRs: 1296 -> 1332 (+2.78%)
Latency: 2337256 -> 2338098 (+0.04%); split: -0.00%, +0.04%
InvThroughput: 560682 -> 576158 (+2.76%)
VClause: 15782 -> 15790 (+0.05%)
Copies: 37905 -> 38731 (+2.18%)
PreVGPRs: 1124 -> 1156 (+2.85%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26901>

2024-01-08 09:43:53 +00:00

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