[clang] [HLSL][Matrix] Update indexed matrix elements individually (PR #176216)

[Deric C. via cfe-commits]

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@@ -2772,6 +2804,7 @@ void CodeGenFunction::EmitStoreThroughLValue(RValue Src, LValue Dst,
                 ->getNumElements();
       }
 
+      llvm::Value *Row = Dst.getMatrixRowIdx();
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Icohedron wrote:

Yea it is possible to insert the assumption on the row index value range, but I'm not sure if I should.

https://github.com/llvm/llvm-project/pull/176216