================
@@ -552,6 +553,11 @@ class DataLayout {
///
/// This includes an explicitly requested alignment (if the global has one).
Align getPreferredAlign(const GlobalVariable *GV) const;
+
+ /// Returns the sentinel pointer value for a given address space. If the
+ /// address space is invalid, it defaults to the sentinel pointer value of
+ /// address space 0, aligning with the behavior of \p getPointerSpec.
+ APInt getSentinelPointerValue(unsigned AS) const;
----------------
arsenm wrote:
If you aren't going to allow an arbitrary bit pattern for this, and only the 2
special cases, I'd rather this just return an enum over those values than the
heavier APInt
https://github.com/llvm/llvm-project/pull/131557
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