fixes https://github.com/llvm/llvm-project/issues/179859
For matrix types we need to check the language mode so we can change the
matrix memory layout to arrays of vectors. To make this play nice with
how the rest of clang treats matrices we need to modify the
MaybeConvertMatrixAddress and the CreateMemTemp function to know how to
reconstruct a flattened vector.
Rest of changes is just test updates.
Fixes#174629
This PR is similar to that of #169144 but for matrices.
When storing to a matrix element or matrix row, `insertelement`
instructions have been replaced by GEPs followed by stores to individual
matrix elements. There is no longer storing of the entire matrix to
memory all at once, thus avoiding data races when writing to independent
matrix elements from multiple threads.
fixes#172805
For the constant case if we know the row index then we can compute the
offsets via `E->getEncodedElementAccess(Elts)`. We had to also add
column and row sizes to LValue so that we could compute the right index.
the emitter for `MatrixSingleSubscriptExpr` collects the sizes off the
type and passes it to `MakeMatrixRow`.
---------
Co-authored-by: Justin Bogner <mail@justinbogner.com>
This change creates an XFAIL that will be addressed by #172805
This part of the change was not intended to make it in. It was a way to
optimize for constant index setters\getters but had the unintended
consequence of doing swizzles without considering the encoded element
offsets.
We need to be calling `MakeExtVectorElt` in `EmitExtVectorElementExpr`
so that we can call `E->getEncodedElementAccess(Elts);` off of the
`ExtVectorElementExpr` Node.
Calling it in `EmitMatrixSingleSubscriptExpr` was wrong because we doing
have the vector encoded elementts yet. But also to get the right index
we need a way to pass on the matrix column and row lengths so
`MakeMatrixRow` needed to be expanded to store row and column sizes on
the LValue.
fixes#166206
- Add swizzle support if row index is constant
- Add test cases
- Add new AST type
- Add new LValue for Matrix Row Type
- TODO: Make the new LValue a dynamic index version of ExtVectorElt
