Author: Timm Baeder Date: 2024-12-03T11:14:06+01:00 New Revision: 0f4dc4276f8dd5c5e33c22096612702ede3c81ed
URL: https://github.com/llvm/llvm-project/commit/0f4dc4276f8dd5c5e33c22096612702ede3c81ed DIFF: https://github.com/llvm/llvm-project/commit/0f4dc4276f8dd5c5e33c22096612702ede3c81ed.diff LOG: [clang][bytecode] Initialize elements in __builtin_elementwise_popcount (#118457) Added: Modified: clang/lib/AST/ByteCode/InterpBuiltin.cpp clang/test/AST/ByteCode/builtin-functions.cpp Removed: ################################################################################ diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp index 2da16608e26c43..c5473322ecb280 100644 --- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp +++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp @@ -1791,6 +1791,7 @@ static bool interp__builtin_elementwise_popcount(InterpState &S, CodePtr OpPC, INT_TYPE_SWITCH_NO_BOOL(ElemT, { Dst.atIndex(I).deref<T>() = T::from(Arg.atIndex(I).deref<T>().toAPSInt().popcount()); + Dst.atIndex(I).initialize(); }); } diff --git a/clang/test/AST/ByteCode/builtin-functions.cpp b/clang/test/AST/ByteCode/builtin-functions.cpp index d8c8d207fbc45f..211ca6e164cbfb 100644 --- a/clang/test/AST/ByteCode/builtin-functions.cpp +++ b/clang/test/AST/ByteCode/builtin-functions.cpp @@ -7,6 +7,14 @@ // RUN: %clang_cc1 -triple avr -std=c++20 -Wno-string-plus-int -fexperimental-new-constant-interpreter %s -verify=expected,both // RUN: %clang_cc1 -triple avr -std=c++20 -Wno-string-plus-int -verify=ref,both %s -Wno-constant-evaluated +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ +#define LITTLE_END 1 +#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +#define LITTLE_END 0 +#else +#error "huh?" +#endif + extern "C" { typedef decltype(sizeof(int)) size_t; extern size_t wcslen(const wchar_t *p); @@ -1140,6 +1148,10 @@ namespace ElementwisePopcount { static_assert(__builtin_elementwise_popcount(0L) == 0); static_assert(__builtin_elementwise_popcount(0xF0F0L) == 8); static_assert(__builtin_elementwise_popcount(~0LL) == 8 * sizeof(long long)); + +#if __INT_WIDTH__ == 32 + static_assert(__builtin_bit_cast(unsigned, __builtin_elementwise_popcount((vector4char){1, 2, 3, 4})) == (LITTLE_END ? 0x01020101 : 0x01010201)); +#endif } namespace BuiltinMemcpy { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
