[llvm] [GlobalIsel] Import vscale (PR #88240)

[Thorsten Schütt via llvm-commits]

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@@ -2550,6 +2550,15 @@ bool IRTranslator::translateKnownIntrinsic(const CallInst &CI, Intrinsic::ID ID,
     MIRBuilder.buildInstr(TargetOpcode::G_RESET_FPMODE, {}, {});
     return true;
   }
+  case Intrinsic::vscale: {
+    LLT DstTy = getLLTForType(*CI.getType(), *DL);
+    auto IntN = IntegerType::get(MF->getFunction().getContext(),
+                                 DstTy.getScalarSizeInBits());
+    ConstantInt *CInt = ConstantInt::get(IntN, 1);
+    MIRBuilder.buildInstr(TargetOpcode::G_VSCALE, {getOrCreateVReg(CI)}, {})
+        .addCImm(CInt);
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tschuett wrote:

Done.

https://github.com/llvm/llvm-project/pull/88240