llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-clang Author: Congcong Cai (HerrCai0907) <details> <summary>Changes</summary> Expression in `RequiresExprBodyDecl` is resolved as constants and should not be captured. Fixes: #<!-- -->69307, #<!-- -->76593. --- Full diff: https://github.com/llvm/llvm-project/pull/78598.diff 2 Files Affected: - (modified) clang/lib/Sema/SemaExpr.cpp (+3-1) - (added) clang/test/SemaCXX/requires-expression-with-capture-variable.cpp (+25) ``````````diff diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp index 6413a48f809ac9..767fc3787cb22f 100644 --- a/clang/lib/Sema/SemaExpr.cpp +++ b/clang/lib/Sema/SemaExpr.cpp @@ -19719,7 +19719,9 @@ bool Sema::tryCaptureVariable( // we can bailout early. if (CapturingFunctionScopes == 0 && (!BuildAndDiagnose || VarDC == DC)) return true; - + // Expression in `RequiresExprBodyDecl` should not be captured. + if (isa<RequiresExprBodyDecl>(CurContext)) + return true; const auto *VD = dyn_cast<VarDecl>(Var); if (VD) { if (VD->isInitCapture()) diff --git a/clang/test/SemaCXX/requires-expression-with-capture-variable.cpp b/clang/test/SemaCXX/requires-expression-with-capture-variable.cpp new file mode 100644 index 00000000000000..d01a54133f6c39 --- /dev/null +++ b/clang/test/SemaCXX/requires-expression-with-capture-variable.cpp @@ -0,0 +1,25 @@ +// RUN: %clang -fsyntax-only -std=c++20 -Xclang -verify %s + +// expected-no-diagnostics + +auto GH69307_Func_1() { + constexpr auto b = 1; + return [&](auto c) -> int + requires requires { b + c; } + { return 1; }; +}; +auto GH69307_Func_Ret = GH69307_Func_1()(1); + +auto GH69307_Lambda_1 = []() { + return [&](auto c) -> int + requires requires { c; } + { return 1; }; +}; +auto GH69307_Lambda_1_Ret = GH69307_Lambda_1()(1); + +auto GH69307_Lambda_2 = [](auto c) { + return [&]() -> int + requires requires { c; } + { return 1; }; +}; +auto GH69307_Lambda_2_Ret = GH69307_Lambda_2(1)(); `````````` </details> https://github.com/llvm/llvm-project/pull/78598 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
