import clang-14.0.6-4.el9_1
This commit is contained in:
CentOS Sources
Stepan Oksanichenko
parent
86267208c6
commit
8cc045a7e8
@ -0,0 +1,90 @@
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From c081bf4098c729afacf20303cc9df62bf13c3362 Mon Sep 17 00:00:00 2001
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From: serge-sans-paille <sguelton@redhat.com>
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Date: Sat, 18 Jun 2022 13:48:41 +0200
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Subject: [PATCH] [clang] Enforce instantiation of constexpr template functions
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during non-constexpr evaluation
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Otherwise these functions are not instantiated and we end up with an undefined
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symbol.
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Fix #55560
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Differential Revision: https://reviews.llvm.org/D128119
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---
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clang/lib/Sema/SemaTemplateInstantiateDecl.cpp | 5 +++--
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.../CodeGenCXX/constexpr-late-instantiation.cpp | 17 +++++++++++++++++
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.../SemaCXX/constexpr-late-instantiation.cpp | 15 +++++++++++++++
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3 files changed, 35 insertions(+), 2 deletions(-)
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create mode 100644 clang/test/CodeGenCXX/constexpr-late-instantiation.cpp
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create mode 100644 clang/test/SemaCXX/constexpr-late-instantiation.cpp
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diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
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index 467372c71496..293782822e83 100644
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--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
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+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
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@@ -4826,7 +4826,8 @@ void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation,
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/*Complain*/DefinitionRequired)) {
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if (DefinitionRequired)
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Function->setInvalidDecl();
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- else if (TSK == TSK_ExplicitInstantiationDefinition) {
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+ else if (TSK == TSK_ExplicitInstantiationDefinition ||
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+ (Function->isConstexpr() && !Recursive)) {
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// Try again at the end of the translation unit (at which point a
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// definition will be required).
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assert(!Recursive);
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@@ -4841,7 +4842,7 @@ void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation,
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Diag(PatternDecl->getLocation(), diag::note_forward_template_decl);
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if (getLangOpts().CPlusPlus11)
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Diag(PointOfInstantiation, diag::note_inst_declaration_hint)
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- << Function;
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+ << Function;
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}
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}
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diff --git a/clang/test/CodeGenCXX/constexpr-late-instantiation.cpp b/clang/test/CodeGenCXX/constexpr-late-instantiation.cpp
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new file mode 100644
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index 000000000000..1c8eef73f2dd
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--- /dev/null
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+++ b/clang/test/CodeGenCXX/constexpr-late-instantiation.cpp
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@@ -0,0 +1,17 @@
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+// Make sure foo is instantiated and we don't get a link error
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+// RUN: %clang_cc1 -S -emit-llvm -triple %itanium_abi_triple %s -o- | FileCheck %s
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+
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+template <typename T>
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+constexpr T foo(T a);
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+
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+// CHECK-LABEL: define {{.*}} @main
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+int main() {
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+ // CHECK: call {{.*}} @_Z3fooIiET_S0_
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+ int k = foo<int>(5);
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+}
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+// CHECK: }
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+
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+template <typename T>
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+constexpr T foo(T a) {
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+ return a;
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+}
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diff --git a/clang/test/SemaCXX/constexpr-late-instantiation.cpp b/clang/test/SemaCXX/constexpr-late-instantiation.cpp
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new file mode 100644
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index 000000000000..ec8e071217c1
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--- /dev/null
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+++ b/clang/test/SemaCXX/constexpr-late-instantiation.cpp
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@@ -0,0 +1,15 @@
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+// RUN: %clang_cc1 %s -fsyntax-only -verify
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+
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+template <typename T>
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+constexpr T foo(T a); // expected-note {{declared here}}
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+
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+int main() {
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+ int k = foo<int>(5); // Ok
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+ constexpr int j = // expected-error {{constexpr variable 'j' must be initialized by a constant expression}}
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+ foo<int>(5); // expected-note {{undefined function 'foo<int>' cannot be used in a constant expression}}
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+}
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+
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+template <typename T>
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+constexpr T foo(T a) {
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+ return a;
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+}
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--
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2.38.1
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@ -45,7 +45,7 @@
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Name: %pkg_name
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Version: %{clang_version}%{?rc_ver:~rc%{rc_ver}}
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Release: 1%{?dist}
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Release: 4%{?dist}
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Summary: A C language family front-end for LLVM
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License: NCSA
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@ -75,6 +75,7 @@ Patch4: 0001-cmake-Allow-shared-libraries-to-customize-the-soname.patch
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Patch5: 0001-Work-around-gcc-miscompile.patch
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Patch7: 0010-PATCH-clang-Produce-DWARF4-by-default.patch
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Patch8: disable-recommonmark.patch
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Patch9: 0001-clang-Enforce-instantiation-of-constexpr-template-fu.patch
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# Patches for clang-tools-extra
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# See https://reviews.llvm.org/D120301
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@ -374,6 +375,7 @@ mv ../clang-%{compat_ver}.src ../clang
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-DCLANG_INCLUDE_TESTS:BOOL=ON \
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-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR=../%{clang_tools_srcdir} \
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-DLLVM_EXTERNAL_LIT=%{_bindir}/lit \
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-DLLVM_LIT_ARGS="-vv" \
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-DLLVM_MAIN_SRC_DIR=%{_datadir}/llvm/src \
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%if 0%{?__isa_bits} == 64
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-DLLVM_LIBDIR_SUFFIX=64 \
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@ -649,6 +651,16 @@ false
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%endif
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%changelog
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* Tue Dec 13 2022 Konrad Kleine <kkleine@redat.com> - 14.0.6-4
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- Bump release version
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* Fri Dec 09 2022 Timm Bäder <tbaeder@redhat.com> - 14.0.6-3
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- Print executed tests
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* Tue Dec 06 2022 Timm Bäder <tbaeder@redhat.com> - 14.0.6-2
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- Fix upstream bug llvm#55560
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- https://bugzilla.redhat.com/show_bug.cgi?id=2150854
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* Tue Jul 19 2022 Timm Bäder <tbaeder@redhat.com> - 14.0.6-1
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- Update to 14.0.6
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