================ @@ -0,0 +1,55 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This contains code to emit Builtin calls as CIR or a function call to be +// later resolved. +// +//===----------------------------------------------------------------------===// + +#include "CIRGenCall.h" +#include "CIRGenFunction.h" +#include "CIRGenModule.h" +#include "CIRGenValue.h" +#include "mlir/IR/BuiltinAttributes.h" +#include "mlir/IR/Value.h" +#include "mlir/Support/LLVM.h" +#include "clang/AST/Expr.h" +#include "clang/AST/GlobalDecl.h" +#include "llvm/Support/ErrorHandling.h" + +using namespace clang; +using namespace clang::CIRGen; + +RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID, + const CallExpr *e, + ReturnValueSlot returnValue) { + // See if we can constant fold this builtin. If so, don't emit it at all. + // TODO: Extend this handling to all builtin calls that we can constant-fold. + Expr::EvalResult result; + if (e->isPRValue() && e->EvaluateAsRValue(result, cgm.getASTContext()) && + !result.hasSideEffects()) { + if (result.Val.isInt()) { + return RValue::get(builder.getConstInt(getLoc(e->getSourceRange()), + result.Val.getInt())); + } + if (result.Val.isFloat()) { ---------------- erichkeane wrote:
Do we have a test for one that has a floating point result? https://github.com/llvm/llvm-project/pull/142981 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
