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[MemCpyOpt] Avoid moving lifetime marker above def (PR58903)
authorNikita Popov <npopov@redhat.com>
Fri, 11 Nov 2022 14:05:11 +0000 (15:05 +0100)
committerNikita Popov <npopov@redhat.com>
Fri, 11 Nov 2022 14:06:34 +0000 (15:06 +0100)
commit4d33cf4166f9a4438cb36ab60502eef7affd7df2
tree68371d63caa43e9daf7f9e55a1b3b60e0815b2b5tree | snapshot
parente000c2bce75ec59782e1a2459c4db6d7a996590ccommit | diff
[MemCpyOpt] Avoid moving lifetime marker above def (PR58903)

This is unlikely to happen with opaque pointers, so just bail out
of the transform, rather than trying to move bitcasts/etc as well.

Fixes https://github.com/llvm/llvm-project/issues/58903.
llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp diff | blob | history
llvm/test/Transforms/MemCpyOpt/lifetime.ll diff | blob | history
Domain: System / Toolchain;