forked from OSchip/llvm-project
4f799c027e
This is a fix for PR30290: by marking all byval stack slots as being aliased, the instruction scheduler is more conservative about rescheduling memory accesses to such stack slots as an LLVM Value* might alias it. This fixes errors such as in the patched test case, where reads and writes to a data structure are illegally mixed. This could be fixed better in the future with better analysis for the instruction scheduler to know what Values alias what stack slots. Differential Revision: https://reviews.llvm.org/D45022 llvm-svn: 331749 |
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