[all-commits] [llvm/llvm-project] 6fef0f: Revert unnecessary and incorrect change made to Gr...

[jamieschmeiser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6fef0ffa14a38c2146c395cc4f39d80844ecc639
      https://github.com/llvm/llvm-project/commit/6fef0ffa14a38c2146c395cc4f39d80844ecc639
  Author: Jamie Schmeiser <schmeise at ca.ibm.com>
  Date:   2021-12-14 (Tue, 14 Dec 2021)

  Changed paths:
    M llvm/include/llvm/Support/GraphWriter.h

  Log Message:
  -----------
  Revert unnecessary and incorrect change made to GraphWriter

Summary:
As pointed out in https://github.com/llvm/llvm-project/issues/52610, the
changes to GraphWriter made in https://reviews.llvm.org/D87202 introduced
some bad code and the changes are actually unnecessary for
-print-changed=dot-cfg. The code in question is guarded by a call to
DefaultDOTGraphTraits::hasEdgeDestLabels() which is always false when the
graph writer is called for -print-changed=dot-cfg. Revert this section of
the changes.

Author: Jamie Schmeiser <schmeise at ca.ibm.com>
Reviewed By:jrtc27(Jessica Clarke), xgupta(Shivam Gupta)
Differential Revision: https://reviews.llvm.org/D115649