[llvm] [AMDGPU] Prevent clauses with incompatible scopes on gfx1250-strict (PR #218788)

[Shilei Tian via llvm-commits]

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@@ -190,6 +190,23 @@ class SIInsertHardClauses {
     return true;
   }
 
+  // \return if scopes are different on gfx1250 and disallowed to be claused.
+  bool incompatibleScope(const MachineInstr &MI1, const MachineInstr &MI2,
+                         const SIInstrInfo *SII) const {
+    if (ST->getGeneration() != AMDGPUSubtarget::GFX12 || !ST->hasGFX1250Insts())
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shiltian wrote:

It seems like this should be an assertion instead of a check, given how it is called.

https://github.com/llvm/llvm-project/pull/218788