[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
https://github.com/azmat-y created https://github.com/llvm/llvm-project/pull/91893 Added a check for unexpanded parameter pack in attribute [[assume]]. Tested it with expected-error statements from clang fronted. This fixes #91232. @Sirraide >From cbb35bd010f2d46ae70367549a2838841a55aeb7 Mon Sep 17 00:00:00 2001 From: Azmat Yusuf Date: Sun, 12 May 2024 20:49:14 +0530 Subject: [PATCH] [Clang] Added check for unexpanded pack in attribute [[assume]] --- clang/lib/Sema/SemaStmtAttr.cpp | 5 + clang/test/SemaCXX/cxx23-assume.cpp | 5 + 2 files changed, 10 insertions(+) diff --git a/clang/lib/Sema/SemaStmtAttr.cpp b/clang/lib/Sema/SemaStmtAttr.cpp index 1c84830b6ddd2..36f8ecadcfab7 100644 --- a/clang/lib/Sema/SemaStmtAttr.cpp +++ b/clang/lib/Sema/SemaStmtAttr.cpp @@ -670,6 +670,11 @@ ExprResult Sema::ActOnCXXAssumeAttr(Stmt *St, const ParsedAttr &A, } auto *Assumption = A.getArgAsExpr(0); + + if (DiagnoseUnexpandedParameterPack(Assumption)) { +return ExprError(); + } + if (Assumption->getDependence() == ExprDependence::None) { ExprResult Res = BuildCXXAssumeExpr(Assumption, A.getAttrName(), Range); if (Res.isInvalid()) diff --git a/clang/test/SemaCXX/cxx23-assume.cpp b/clang/test/SemaCXX/cxx23-assume.cpp index 8676970de14f6..e67d72ae0a995 100644 --- a/clang/test/SemaCXX/cxx23-assume.cpp +++ b/clang/test/SemaCXX/cxx23-assume.cpp @@ -138,3 +138,8 @@ constexpr int foo() { } static_assert(foo() == 0); + +template +void f() { +[[assume(val)]]; // expected-error {{expression contains unexpanded parameter pack}} +} ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
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[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
llvmbot wrote: @llvm/pr-subscribers-clang Author: Azmat Yusuf (azmat-y) Changes Added a check for unexpanded parameter pack in attribute [[assume]]. Tested it with expected-error statements from clang fronted. This fixes #91232. @Sirraide --- Full diff: https://github.com/llvm/llvm-project/pull/91893.diff 2 Files Affected: - (modified) clang/lib/Sema/SemaStmtAttr.cpp (+5) - (modified) clang/test/SemaCXX/cxx23-assume.cpp (+5) ``diff diff --git a/clang/lib/Sema/SemaStmtAttr.cpp b/clang/lib/Sema/SemaStmtAttr.cpp index 1c84830b6ddd2..36f8ecadcfab7 100644 --- a/clang/lib/Sema/SemaStmtAttr.cpp +++ b/clang/lib/Sema/SemaStmtAttr.cpp @@ -670,6 +670,11 @@ ExprResult Sema::ActOnCXXAssumeAttr(Stmt *St, const ParsedAttr &A, } auto *Assumption = A.getArgAsExpr(0); + + if (DiagnoseUnexpandedParameterPack(Assumption)) { +return ExprError(); + } + if (Assumption->getDependence() == ExprDependence::None) { ExprResult Res = BuildCXXAssumeExpr(Assumption, A.getAttrName(), Range); if (Res.isInvalid()) diff --git a/clang/test/SemaCXX/cxx23-assume.cpp b/clang/test/SemaCXX/cxx23-assume.cpp index 8676970de14f6..e67d72ae0a995 100644 --- a/clang/test/SemaCXX/cxx23-assume.cpp +++ b/clang/test/SemaCXX/cxx23-assume.cpp @@ -138,3 +138,8 @@ constexpr int foo() { } static_assert(foo() == 0); + +template +void f() { +[[assume(val)]]; // expected-error {{expression contains unexpanded parameter pack}} +} `` https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
https://github.com/cor3ntin approved this pull request. LGTM! Thanks for working on this https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
https://github.com/cor3ntin closed https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
github-actions[bot] wrote: @azmat-y Congratulations on having your first Pull Request (PR) merged into the LLVM Project! Your changes will be combined with recent changes from other authors, then tested by our [build bots](https://lab.llvm.org/buildbot/). If there is a problem with a build, you may receive a report in an email or a comment on this PR. Please check whether problems have been caused by your change specifically, as the builds can include changes from many authors. It is not uncommon for your change to be included in a build that fails due to someone else's changes, or infrastructure issues. How to do this, and the rest of the post-merge process, is covered in detail [here](https://llvm.org/docs/MyFirstTypoFix.html#myfirsttypofix-issues-after-landing-your-pr). If your change does cause a problem, it may be reverted, or you can revert it yourself. This is a normal part of [LLVM development](https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy). You can fix your changes and open a new PR to merge them again. If you don't get any reports, no action is required from you. Your changes are working as expected, well done! https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
azmat-y wrote: It was a pleasure working on this. I have received two emails from llvm build bot regarding failed builds, though the commit shows 8 build fails. How to go about investigating the cause of failures? Can you give me some pointers regarding this. And do the failures means this patch will need to be reverted? https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
Sirraide wrote: > I have received two emails from llvm build bot regarding failed builds, > though the commit shows 8 build fails. That need not be because of this pr specifically; it may just be that someone else did something that caused the build to fail, and the commit for this pr just happened to be among the commits that was tested. Can you put the buildbot link here so we can take a look at it? https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
azmat-y wrote: Here are the builds Mentioned in emails [clang-aarch64-sve-vls](https://lab.llvm.org/buildbot/#/builders/184/builds/12514) [clang-aarch64-sve-vla-2stage](https://lab.llvm.org/buildbot/#/builders/198/builds/9849) Others [arc-builder](https://lab.llvm.org/buildbot/#/builders/164/builds/52197) [bolt-x86_64-ubuntu-clang](https://lab.llvm.org/buildbot/#/builders/252/builds/9890) [clang-with-lto-ubuntu](https://lab.llvm.org/buildbot/#/builders/124/builds/10736) [clang-with-thin-lto-ubuntu](https://lab.llvm.org/buildbot/#/builders/67/builds/15879) [clang-x64-windows-msvc](https://lab.llvm.org/buildbot/#/builders/123/builds/26469) [lldb-aarch64-windows](https://lab.llvm.org/buildbot/#/builders/219/builds/11350) https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
Sirraide wrote: > Here are the builds > > Mentioned in emails > [clang-aarch64-sve-vls](https://lab.llvm.org/buildbot/#/builders/184/builds/12514) > > [clang-aarch64-sve-vla-2stage](https://lab.llvm.org/buildbot/#/builders/198/builds/9849) > > Others > [arc-builder](https://lab.llvm.org/buildbot/#/builders/164/builds/52197) > [bolt-x86_64-ubuntu-clang](https://lab.llvm.org/buildbot/#/builders/252/builds/9890) > > [clang-with-lto-ubuntu](https://lab.llvm.org/buildbot/#/builders/124/builds/10736) > > [clang-with-thin-lto-ubuntu](https://lab.llvm.org/buildbot/#/builders/67/builds/15879) > > [clang-x64-windows-msvc](https://lab.llvm.org/buildbot/#/builders/123/builds/26469) > > [lldb-aarch64-windows](https://lab.llvm.org/buildbot/#/builders/219/builds/11350) That’s an MLIR test which is entirely unrelated to any of this here, so you should be able to ignore that. https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
[clang] [Clang] Added check for unexpanded pack in attribute [[assume]] (PR #91893)
azmat-y wrote: Thanks for confirming and also thanks for your help. https://github.com/llvm/llvm-project/pull/91893 ___ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits