Author: adbox53 Date: 2025-12-08T08:24:51Z New Revision: 95470b6c620d75cdfe5a2a6b2388a90cc53e66c3
URL: https://github.com/llvm/llvm-project/commit/95470b6c620d75cdfe5a2a6b2388a90cc53e66c3 DIFF: https://github.com/llvm/llvm-project/commit/95470b6c620d75cdfe5a2a6b2388a90cc53e66c3.diff LOG: Replace interp__builtin_blend with interp__builtin_ia32_shuffle_gener… (#170217) Fixes #169994 --------- Co-authored-by: Timm Baeder <[email protected]> Added: Modified: clang/lib/AST/ByteCode/InterpBuiltin.cpp Removed: ################################################################################ diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp index 17fac525ff1d8..3de842465bc1a 100644 --- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp +++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp @@ -2875,39 +2875,6 @@ static bool interp__builtin_select_scalar(InterpState &S, return true; } -static bool interp__builtin_blend(InterpState &S, CodePtr OpPC, - const CallExpr *Call) { - APSInt Mask = popToAPSInt(S, Call->getArg(2)); - const Pointer &TrueVec = S.Stk.pop<Pointer>(); - const Pointer &FalseVec = S.Stk.pop<Pointer>(); - const Pointer &Dst = S.Stk.peek<Pointer>(); - - assert(FalseVec.getNumElems() == TrueVec.getNumElems()); - assert(FalseVec.getNumElems() == Dst.getNumElems()); - unsigned NumElems = FalseVec.getNumElems(); - PrimType ElemT = FalseVec.getFieldDesc()->getPrimType(); - PrimType DstElemT = Dst.getFieldDesc()->getPrimType(); - - for (unsigned I = 0; I != NumElems; ++I) { - bool MaskBit = Mask[I % 8]; - if (ElemT == PT_Float) { - assert(DstElemT == PT_Float); - Dst.elem<Floating>(I) = - MaskBit ? TrueVec.elem<Floating>(I) : FalseVec.elem<Floating>(I); - } else { - assert(DstElemT == ElemT); - INT_TYPE_SWITCH_NO_BOOL(DstElemT, { - Dst.elem<T>(I) = - static_cast<T>(MaskBit ? TrueVec.elem<T>(I).toAPSInt() - : FalseVec.elem<T>(I).toAPSInt()); - }); - } - } - Dst.initializeAllElements(); - - return true; -} - static bool interp__builtin_ia32_test_op( InterpState &S, CodePtr OpPC, const CallExpr *Call, llvm::function_ref<bool(const APInt &A, const APInt &B)> Fn) { @@ -4796,7 +4763,15 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const CallExpr *Call, case clang::X86::BI__builtin_ia32_pblendw256: case clang::X86::BI__builtin_ia32_pblendd128: case clang::X86::BI__builtin_ia32_pblendd256: - return interp__builtin_blend(S, OpPC, Call); + return interp__builtin_ia32_shuffle_generic( + S, OpPC, Call, [](unsigned DstIdx, unsigned ShuffleMask) { + // Bit index for mask. + unsigned MaskBit = (ShuffleMask >> (DstIdx % 8)) & 0x1; + unsigned SrcVecIdx = MaskBit ? 1 : 0; // 1 = TrueVec, 0 = FalseVec + return std::pair<unsigned, int>{SrcVecIdx, static_cast<int>(DstIdx)}; + }); + + case clang::X86::BI__builtin_ia32_blendvpd: case clang::X86::BI__builtin_ia32_blendvpd256: _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
