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sanjoy
2017 Jan 14
2
Problems with tbaa in llvm 4.0
...GHC haskell compiler. One of the things I
do is compile current GHC git HEAD against the next release of LLVM
to find issues and adapt the GHC code as early as possible.
A recent modification to LLVM is now rejecting GHC generated LLVM
IR that was previously accepted. I discussed this on IRC with
sanjoyd who explained what had changed and gave me some hints about
trying to fix it. Basically the issue (as I understood it) was that
no statements should reference the root tbaa node directly.
With that in mind, I came up with a fix to GHC llvm codegen so the
the tbaa metadata is now:
!0 = !{!&quo...