[all-commits] [llvm/llvm-project] 72e599: [Flang]Fix another way to crash SimplifyIntrinsics

Mats Petersson via All-commits all-commits at lists.llvm.org
Fri Aug 19 11:01:09 PDT 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 72e599197c77d95ca2e3c4a7ffe82b739981da75
  Author: Mats Petersson <mats.petersson at arm.com>
  Date:   2022-08-19 (Fri, 19 Aug 2022)

  Changed paths:
    M flang/lib/Optimizer/Transforms/SimplifyIntrinsics.cpp
    M flang/test/Transforms/simplifyintrinsics.fir

  Log Message:
  [Flang]Fix another way to crash SimplifyIntrinsics

Under some conditions, the defining op may be NULL, so
accept that rahter than try to use it and crash!

Adds test to prevent regression

Fixes github issue #57201

Reviewed By: vzakhari

Differential Revision: https://reviews.llvm.org/D132238

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