Zubin pushed to branch wip/9.12.3-backports at Glasgow Haskell Compiler / GHC

Commits:

• e67ba5ed
  by Ben Gamari at 2025-08-27T18:49:38+05:30

  llvmGen: Fix built-in variable predicate
  
  Previously the predicate to identify LLVM builtin global variables was
  checking for `$llvm` rather than `@llvm` as it should.
  
  (cherry picked from commit 6e67fa083a50684e1cfae546e07cab4d4250e871)
  

1 changed file:

• compiler/GHC/CmmToLlvm/Base.hs

Changes:

   modifyEnv $ \env -> env { envAliases = emptyUniqSet }

   return (concat defss, [])

--- | Is a variable one of the special @$llvm@ globals?

+-- | Is a variable one of the special @\@llvm@ globals?

 isBuiltinLlvmVar :: LlvmVar -> Bool

 isBuiltinLlvmVar (LMGlobalVar lbl _ _ _ _ _) =

-    "$llvm" `isPrefixOf` unpackFS lbl

+    "llvm." `isPrefixOf` unpackFS lbl

 isBuiltinLlvmVar _ = False

 -- | Here we take a global variable definition, rename it with a