https://bugs.llvm.org/show_bug.cgi?id=42435
Bug ID: 42435
Summary: LangRef NonAtomic documentation incomplete w.r.t
volatile and write-write races
Product: Documentation
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: General docs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
The Lang ref mentions here (https://llvm.org/docs/Atomics.html#notatomic) that
when there is a data-race, loads return undef.
What if the load is volatile? Does it also return undef ?
Does this mean that the write that participates in the race does not invoke
undefined behavior?
What happens with write-write races? What if the NonAtomic writes involved are
volatile?
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