[clang] [llvm] [RISCV][LLVM] Enable atomics for 'Zalrsc' (PR #163672)

[Craig Topper via cfe-commits]

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@@ -429,7 +429,20 @@ SDValue DAGTypeLegalizer::PromoteIntRes_Atomic0(AtomicSDNode *N) {
 }
 
 SDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) {
-  SDValue Op2 = GetPromotedInteger(N->getOperand(2));
+  SDValue Op2 = N->getOperand(2);
+  switch(TLI.getExtendForAtomicRMWArg(N->getOpcode())) {
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topperc wrote:

Space after `switch`.

https://github.com/llvm/llvm-project/pull/163672