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In the test below, @baz may not return. In that case, the source function will not branch on the possibly poison %exitcond (poison if %n poison).
The target function always branches on %n regardless of whether @baz returns or not.
The fix is to freeze %n if the code doesn't provably reach the branch.
Extended Description
Test: Transforms/LoopUnroll/loop-remarks.ll
In the test below, @baz may not return. In that case, the source function will not branch on the possibly poison %exitcond (poison if %n poison).
The target function always branches on %n regardless of whether @baz returns or not.
The fix is to freeze %n if the code doesn't provably reach the branch.
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