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__stack_chk_guard. Handle the case where the pointer operand of the load instruction that loads the stack guard is not a global variable but instead a bitcast. %StackGuard = load i8** bitcast (i64** @__stack_chk_guard to i8**) call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot) Original test case provided by Ana Pazos. This fixes PR20558. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215167 91177308-0d34-0410-b5e6-96231b3b80d8
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