Author: Timm Bäder Date: 2024-04-16T11:21:41+02:00 New Revision: 58b49cef1d772a922a433fd4a42e41db3f18d34b
URL: https://github.com/llvm/llvm-project/commit/58b49cef1d772a922a433fd4a42e41db3f18d34b DIFF: https://github.com/llvm/llvm-project/commit/58b49cef1d772a922a433fd4a42e41db3f18d34b.diff LOG: [clang][Interp] Support __builtin_vectorelements Added: Modified: clang/lib/AST/Interp/ByteCodeExprGen.cpp clang/test/AST/Interp/vectors.cpp Removed: ################################################################################ diff --git a/clang/lib/AST/Interp/ByteCodeExprGen.cpp b/clang/lib/AST/Interp/ByteCodeExprGen.cpp index 5866228663dca2..93059edc4622f8 100644 --- a/clang/lib/AST/Interp/ByteCodeExprGen.cpp +++ b/clang/lib/AST/Interp/ByteCodeExprGen.cpp @@ -1251,6 +1251,15 @@ bool ByteCodeExprGen<Emitter>::VisitUnaryExprOrTypeTraitExpr( return this->emitConst(Size.getQuantity(), E); } + if (Kind == UETT_VectorElements) { + if (const auto *VT = E->getTypeOfArgument()->getAs<VectorType>()) + return this->emitConst(VT->getNumElements(), E); + + // FIXME: Apparently we need to catch the fact that a sizeless vector type + // has been passed and diagnose that (at run time). + assert(E->getTypeOfArgument()->isSizelessVectorType()); + } + return false; } diff --git a/clang/test/AST/Interp/vectors.cpp b/clang/test/AST/Interp/vectors.cpp index fb5787a9eda9a9..6c5d916f51f563 100644 --- a/clang/test/AST/Interp/vectors.cpp +++ b/clang/test/AST/Interp/vectors.cpp @@ -13,12 +13,14 @@ namespace Vector { return VI4 { n * 3, n + 4, n - 5, n / 6 }; } constexpr auto v1 = f(10); + static_assert(__builtin_vectorelements(v1) == (16 / sizeof(int)), ""); typedef double __attribute__((vector_size(32))) VD4; constexpr VD4 g(int n) { return (VD4) { n / 2.0, n + 1.5, n - 5.4, n * 0.9 }; } constexpr auto v2 = g(4); + static_assert(__builtin_vectorelements(v2) == (32 / sizeof(double)), ""); } /// FIXME: We need to support BitCasts between vector types. _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
