https://github.com/rdez13 created https://github.com/llvm/llvm-project/pull/161924
Fixes issue #160289 >From 6a347f60d6c467ec1a6fd2dd6122bcf710741939 Mon Sep 17 00:00:00 2001 From: rdez13 <[email protected]> Date: Fri, 3 Oct 2025 18:28:08 -0400 Subject: [PATCH] llvm#160289 added new rotate right and left helper functions and changed return for BuiltinID switch case rotl64 and rotr64 to use elementwise binary op instead of builtin rotate --- clang/lib/AST/ByteCode/InterpBuiltin.cpp | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp index 6053237b1a261..dc09dc33f29c3 100644 --- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp +++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp @@ -56,6 +56,20 @@ static APSInt popToAPSInt(InterpState &S, QualType T) { return popToAPSInt(S.Stk, *S.getContext().classify(T)); } +static APInt ROTL_fn(const APSInt &A, const APSInt &B) { + const APInt &X = static_cast<const APInt &>(A); + const unsigned BW = X.getBitWidth(); + const uint64_t Amt = B.getZExtValue(); + return X.rotl(static_cast<unsigned>(Amt % BW)); +} + +static APInt ROTR_fn(const APSInt &A, const APSInt &B) { + const APInt &X = static_cast<const APInt &>(A); + const unsigned BW = X.getBitWidth(); + const uint64_t Amt = B.getZExtValue(); + return X.rotr(static_cast<unsigned>(Amt % BW)); +} + /// Pushes \p Val on the stack as the type given by \p QT. static void pushInteger(InterpState &S, const APSInt &Val, QualType QT) { assert(QT->isSignedIntegerOrEnumerationType() || @@ -3162,7 +3176,7 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const CallExpr *Call, case Builtin::BI_rotl: case Builtin::BI_lrotl: case Builtin::BI_rotl64: - return interp__builtin_rotate(S, OpPC, Frame, Call, /*Right=*/false); + return interp__builtin_elementwise_int_binop(S, OpPC, Call, ROTL_fn); case Builtin::BI__builtin_rotateright8: case Builtin::BI__builtin_rotateright16: @@ -3173,7 +3187,7 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const CallExpr *Call, case Builtin::BI_rotr: case Builtin::BI_lrotr: case Builtin::BI_rotr64: - return interp__builtin_rotate(S, OpPC, Frame, Call, /*Right=*/true); + return interp__builtin_elementwise_int_binop(S, OpPC, Call, ROTR_fn); case Builtin::BI__builtin_ffs: case Builtin::BI__builtin_ffsl: _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
