[llvm] [SPIR-V] Lower llvm.x.with.overflow intrinsics (PR #95012)

[Michal Paszkowski via llvm-commits]

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@@ -68,6 +68,11 @@ class SPIRVTargetLowering : public TargetLowering {
   // extra instructions required to preserve validity of SPIR-V code imposed by
   // the standard.
   void finalizeLowering(MachineFunction &MF) const override;
+
+  MVT getPreferredSwitchConditionType(LLVMContext &Context,
+                                      EVT ConditionVT) const override {
+    return ConditionVT.getSimpleVT();
+  }
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michalpaszkowski wrote:

This PR is based on another (PR 94959) which hasn't been merged yet. Once the other PR is merged this one will be rebased and this change will disappear. This was done so that our automated testing combines these changes.

https://github.com/llvm/llvm-project/pull/95012