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Merge commit 989879f8fded from llvm git (by Paul Walker):
[Clang] Allow C++11 style initialisation of SVE types. Fixes https://github.com/llvm/llvm-project/issues/63223 Differential Revision: https://reviews.llvm.org/D153560 Requested by: andrew MFC after: 3 days
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@ -1861,6 +1861,23 @@ Value *ScalarExprEmitter::VisitInitListExpr(InitListExpr *E) {
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return Visit(E->getInit(0));
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}
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if (isa<llvm::ScalableVectorType>(VType)) {
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if (NumInitElements == 0) {
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// C++11 value-initialization for the vector.
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return EmitNullValue(E->getType());
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}
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if (NumInitElements == 1) {
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Expr *InitVector = E->getInit(0);
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// Initialize from another scalable vector of the same type.
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if (InitVector->getType() == E->getType())
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return Visit(InitVector);
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}
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llvm_unreachable("Unexpected initialization of a scalable vector!");
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}
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unsigned ResElts = cast<llvm::FixedVectorType>(VType)->getNumElements();
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// Loop over initializers collecting the Value for each, and remembering
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