[all-commits] [llvm/llvm-project] c6ac71: [Attributor] Allow multiple uses of a casted funct...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: c6ac717aa70d3f31c0a4fd6385e8baaa9f3e2724
      https://github.com/llvm/llvm-project/commit/c6ac717aa70d3f31c0a4fd6385e8baaa9f3e2724
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2020-02-19 (Wed, 19 Feb 2020)

  Changed paths:
    M llvm/include/llvm/Transforms/IPO/Attributor.h
    M llvm/lib/Transforms/IPO/Attributor.cpp
    M llvm/test/Transforms/Attributor/IPConstantProp/arg-count-mismatch.ll
    M llvm/test/Transforms/Attributor/IPConstantProp/arg-type-mismatch.ll
    M llvm/test/Transforms/Attributor/callbacks.ll

  Log Message:
  -----------
  [Attributor] Allow multiple uses of a casted function pointer

If a function pointer is casted into a different type the resulting
expression can be a constant. If so, it can be used multiple times which
cannot be handled by the AbstractCallSite constructor alone. Instead, we
follow the cast expression uses now explicitly during the call site
traversal.