Wenju He a271d07488
[libclc] Implement erf/erfc vector function with loop since scalar function is large (#157055)
This PR reduces amdgcn--amdhsa.bc size by 1.8% and nvptx64--nvidiacl.bc
size by 4%.
Loop trip count is constant and backend can decide whether to unroll.

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-09-05 19:58:24 +08:00
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