Obey the isVolatile bit on memory intrinsics when analyzing uses of a global
variable. Noticed by inspection.

Simulate memset in EvaluateFunction where the target of the memset and the
value we're setting are both the null value. Fixes PR10047!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132288 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed