================
@@ -641,3 +652,53 @@ bool Sema::CheckRebuiltStmtAttributes(ArrayRef<const Attr
*> Attrs) {
CheckForDuplicateLoopAttrs<CodeAlignAttr>(*this, Attrs);
return false;
}
+
+ExprResult Sema::ActOnCXXAssumeAttr(Stmt *St, const ParsedAttr &A,
+ SourceRange Range) {
+ if (A.getNumArgs() != 1 || !A.getArgAsExpr(0)) {
+ Diag(A.getLoc(), diag::err_assume_attr_args) << A.getAttrName() << Range;
+ return ExprError();
+ }
+
+ if (!isa<NullStmt>(St)) {
+ Diag(A.getLoc(), diag::err_assume_attr_wrong_target)
+ << A.getAttrName() << Range;
+ return ExprError();
+ }
+
+ auto *Assumption = A.getArgAsExpr(0);
+ if (Assumption->getDependence() == ExprDependence::None) {
+ ExprResult Res = BuildCXXAssumeExpr(Assumption, A.getAttrName(), Range);
+ if (Res.isInvalid())
+ return ExprError();
+ Assumption = Res.get();
+ }
+
+ if (!getLangOpts().CPlusPlus23)
+ Diag(A.getLoc(), diag::ext_cxx23_attr) << A << Range;
+
+ return Assumption;
+}
+
+ExprResult Sema::BuildCXXAssumeExpr(Expr *Assumption,
+ const IdentifierInfo *AttrName,
+ SourceRange Range) {
+ ExprResult Res = CorrectDelayedTyposInExpr(Assumption);
+ if (Res.isInvalid())
+ return ExprError();
+
+ Res = CheckPlaceholderExpr(Res.get());
+ if (Res.isInvalid())
+ return ExprError();
+
+ Res = PerformContextuallyConvertToBool(Res.get());
+ if (Res.isInvalid())
+ return ExprError();
+
+ Assumption = Res.get();
+ if (Assumption->HasSideEffects(Context))
+ Diag(Assumption->getBeginLoc(), diag::warn_assume_side_effects)
+ << AttrName << Range;
+
+ return Assumption;
+}
----------------
Sirraide wrote:
Ah yes, as always.
https://github.com/llvm/llvm-project/pull/81014
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