One shader is negatively affected, but we save 2 entire iterations over every shader. This effect is also mitigated with the next commits. Totals from 1 (0.00% of 79839) affected shaders: (Navi48) Instrs: 947 -> 958 (+1.16%) CodeSize: 4728 -> 4732 (+0.08%) Latency: 20678 -> 20723 (+0.22%) InvThroughput: 2697 -> 2698 (+0.04%) SClause: 26 -> 27 (+3.85%) Copies: 139 -> 145 (+4.32%) Branches: 46 -> 47 (+2.17%) VALU: 460 -> 463 (+0.65%) SALU: 201 -> 204 (+1.49%) Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37843>