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[CIR][TargetLowering] Fix use iteration #1162

Merged
merged 1 commit into from
Nov 25, 2024
Merged

[CIR][TargetLowering] Fix use iteration #1162

merged 1 commit into from
Nov 25, 2024

Commits on Nov 25, 2024

  1. [CIR][TargetLowering] Fix use iteration 

    Based on https://mlir.llvm.org/docs/Tutorials/UnderstandingTheIRStructure/#traversing-the-def-use-chains,
the users of an op are linked together in a doubly-linked list, so
replacing a user while iterating the users causes a use-after-free.
Store the users in a worklist and process them afterwards instead to
avoid this.
    @smeenai
    smeenai committed Nov 25, 2024
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