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[WinEH] Don't sink allocas into child handlers
authorReid Kleckner <reid@kleckner.net>
Mon, 6 Apr 2015 18:50:38 +0000 (18:50 +0000)
committerReid Kleckner <reid@kleckner.net>
Mon, 6 Apr 2015 18:50:38 +0000 (18:50 +0000)
commitebb3c53316538e6799f727ade65ce95606f3cd05
treeba3d37376e3a7639d770edc43309387c4f229f79tree | snapshot
parent8af3f965e08414c95165d9014c2f5397932aad23commit | diff
[WinEH] Don't sink allocas into child handlers

The uselist isn't enough to infer anything about the lifetime of such
allocas. If we want to re-add this optimization, we will need to
leverage lifetime markers to do it.

Fixes PR23122.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234196 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp diff | blob | history
lib/CodeGen/WinEHPrepare.cpp diff | blob | history
test/CodeGen/WinEH/cppeh-alloca-sink.ll [new file with mode: 0644] blob
external/llvm
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