[llvm] [SelectionDAG] Introduce ISD::PTRADD (PR #140017)
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Fri May 16 01:01:15 PDT 2025
================
@@ -469,9 +470,13 @@ class TargetMachine {
}
/// True if target has some particular form of dealing with pointer arithmetic
- /// semantics. False if pointer arithmetic should not be preserved for passes
- /// such as instruction selection, and can fallback to regular arithmetic.
- virtual bool shouldPreservePtrArith(const Function &F) const { return false; }
+ /// semantics for pointers with the given value type. False if pointer
+ /// arithmetic should not be preserved for passes such as instruction
+ /// selection, and can fallback to regular arithmetic.
+ virtual bool shouldPreservePtrArith(const Function &F,
+ const EVT &PtrVT) const {
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arsenm wrote:
EVT should be passed by value. But also I don't see how this can be an EVT and not the original IR type (or just PointerType)
https://github.com/llvm/llvm-project/pull/140017
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