https://github.com/tbaederr created https://github.com/llvm/llvm-project/pull/216536
Only integer types are allowed. >From f7f3916d63de1bec6e24541f4686c1bb5a555b6a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timm=20B=C3=A4der?= <[email protected]> Date: Sun, 16 Aug 2026 08:05:07 +0200 Subject: [PATCH] [clang][bytecode] check reduce_min element type Only integer types are allowed. --- clang/lib/AST/ByteCode/InterpBuiltin.cpp | 3 +++ clang/test/AST/ByteCode/builtin-functions.cpp | 5 +++++ 2 files changed, 8 insertions(+) diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp index 68fab67ebe848..a61451f22631d 100644 --- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp +++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp @@ -1711,6 +1711,9 @@ static bool interp__builtin_vector_reduce(InterpState &S, CodePtr OpPC, PrimType ElemT = *S.getContext().classify(ElemType); unsigned NumElems = Arg.getNumElems(); + if (!isIntegerType(ElemT)) + return false; + INT_TYPE_SWITCH_NO_BOOL(ElemT, { T Result = Arg.elem<T>(0); unsigned BitWidth = Result.bitWidth(); diff --git a/clang/test/AST/ByteCode/builtin-functions.cpp b/clang/test/AST/ByteCode/builtin-functions.cpp index b14ae91c753cb..87ffb1cc5b609 100644 --- a/clang/test/AST/ByteCode/builtin-functions.cpp +++ b/clang/test/AST/ByteCode/builtin-functions.cpp @@ -2122,3 +2122,8 @@ namespace SubCb { } static_assert(subcb2() == 0); } + +namespace ReduceMin { + typedef float v4f __attribute__((__vector_size__(16))); + static_assert(__builtin_reduce_min((v4f){1.123, 2.123, 3.123, 4.123}) == 0); // both-error {{not an integral constant expression}} +} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
