build/build-clang/revert-llvmorg-12-init-7827-g2a078c307204.patch

   1 llvmorg-12-init-7827-g2a078c307204 leads to linker complaints in shippable
   2 builds. It may be related to LTO with IR from rustc. The patch author and I
   3 were unable to get to the bottom of it, and in the end they suggested that
   4 it's safe to undo the change locally.
   5
   6 diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
   7 index b21d4527484..e9602f1aaf1 100644
   8 --- a/llvm/lib/IR/Attributes.cpp
   9 +++ b/llvm/lib/IR/Attributes.cpp
  10 @@ -1848,7 +1848,6 @@ AttrBuilder AttributeFuncs::typeIncompatible(Type *Ty) {
  11          .addAttribute(Attribute::NoAlias)
  12          .addAttribute(Attribute::NoCapture)
  13          .addAttribute(Attribute::NonNull)
  14 -        .addAlignmentAttr(1)             // the int here is ignored
  15          .addDereferenceableAttr(1)       // the int here is ignored
  16          .addDereferenceableOrNullAttr(1) // the int here is ignored
  17          .addAttribute(Attribute::ReadNone)