twoh added a comment.
Herald added subscribers: llvm-commits, jfb.

Hello, I observed a case where atomic builtin generates libcall when the 
corresponding sync builtin generates an atomic instruction 
(https://bugs.llvm.org/show_bug.cgi?id=38846). It seems that the alignment 
checking for __atomic builtins (line 759 of this patch) results the difference, 
and wonder if the check is actually necessary. Could anyone please shed some 
light on understanding this? Thanks!


Repository:
  rL LLVM

https://reviews.llvm.org/D37310



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