[llvm] [NVPTX] Add support for stacksave, stackrestore intrinsics (PR #114484)
Artem Belevich via llvm-commits
llvm-commits at lists.llvm.org
Thu Oct 31 17:01:10 PDT 2024
================
@@ -2287,6 +2290,54 @@ SDValue NVPTXTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op,
return DAG.getNode(NVPTXISD::DYNAMIC_STACKALLOC, DL, RetTypes, AllocOps);
}
+SDValue NVPTXTargetLowering::LowerSTACKRESTORE(SDValue Op,
+ SelectionDAG &DAG) const {
+ SDLoc DL(Op.getNode());
+ if (STI.getPTXVersion() < 73 || STI.getSmVersion() < 52) {
+ const Function &Fn = DAG.getMachineFunction().getFunction();
+
+ DiagnosticInfoUnsupported NoStackRestore(
+ Fn,
+ "Support for stackrestore introduced in PTX ISA version 7.3 and "
+ "requires target sm_52.",
----------------
Artem-B wrote:
Wording nit: I'd stick with "requires {something} >= {min_version}" for both PTX and SM.
https://github.com/llvm/llvm-project/pull/114484
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