================
@@ -282,6 +282,134 @@ def : Pat<(relaxed_store<atomic_store_64>
(am_unscaled64 GPR64sp:$Rn, simm9:$offset), (i64 (bitconvert
(f64 FPR64Op:$val)))),
(STURDi FPR64Op:$val, GPR64sp:$Rn, simm9:$offset)>;
+//===----------------------------------
+// Atomic store with hint pseudos
+//===----------------------------------
+
+let Size = 8, isCodeGenOnly = 1, hasSideEffects = 1, mayStore = 1 in {
+ class BaseStoreHintPseudo<RegisterClass regtype>
+ : Pseudo<(outs), (ins GPR64sp:$addr, regtype:$data,
+ i32imm:$order, i32imm:$hint), []>,
Sched<[WriteAtomic]>;
----------------
kmclaughlin-arm wrote:
I think the flag needed is `IsAtomicOrderingReleaseOrStronger`, but I've
replaced `Order` with `Relaxed` and removed duplicate patterns.
https://github.com/llvm/llvm-project/pull/198316
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