[GCC15][llvm]Update to version 21.1.4#10311

Merged

smuzaffar merged 3 commits intoIB/CMSSW_16_1_X/g15from

update-llvm-cherrypick

Jan 30, 2026

Commits on Jan 28, 2026

[CLANG_X][llvm]Update to version 21.1.4

smuzaffar
authored and
RaoMAtifShad
committed
llvm: drop gcc15 patches which are already include upstream
smuzaffar
authored

Commits on Jan 29, 2026

removed linkage problem from clang-uml by adding a patch file (#10317)

raoatifshad
and
RaoMAtifShad
authored