[clang] [clang] Fix division by zero in ACLEIntrinsic constructor (PR #115883)

[Mariya Podchishchaeva via cfe-commits]

================
@@ -1415,7 +1415,10 @@ ACLEIntrinsic::ACLEIntrinsic(EmitterBase &ME, const 
Record *R,
         } else if (Bounds->getName() == "IB_LaneIndex") {
           IA.boundsType = ImmediateArg::BoundsType::ExplicitRange;
           IA.i1 = 0;
-          IA.i2 = 128 / Param->sizeInBits() - 1;
+          unsigned sizeInBits = Param->sizeInBits();
+          if (sizeInBits == 0)
+            PrintFatalError("Division by zero: Param->sizeInBits() is zero.");
----------------
Fznamznon wrote:

Param is just some `Type` here, which can be `void`, returning 0 for its size.

https://github.com/llvm/llvm-project/pull/115883
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