configure.ac | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
New commits:
commit 3b53760bcd304c0a3efc58188d80cb963c24b484
Author: Stephan Bergmann <sberg...@redhat.com>
AuthorDate: Tue Mar 29 16:16:34 2022 +0200
Commit: Stephan Bergmann <sberg...@redhat.com>
CommitDate: Tue Mar 29 17:23:10 2022 +0200
Check for yet another consteval bug
...which caused at least recent Clang 15 trunk configured with
LLVM_ENABLE_ASSERTIONS=ON to crash when building --with-latest-c++ e.g.
sal/qa/rtl/strings/test_oustring_stringliterals.cxx since
21584b304b21bfe6b99b6f29018c6b754ea28fc0 "make OUString(OUStringLiteral)
constructor constexpr"
Change-Id: Icef2ae27bfc518b127aabfc4767212b4b6a95a77
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132273
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sberg...@redhat.com>
diff --git a/configure.ac b/configure.ac
index 250de34971ab..9d97f42c4030 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14350,9 +14350,13 @@ dnl from consteval constructor initializing const
variable",
dnl <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98752> "wrong 'error: ‘this’
is not a constant
dnl expression' with consteval constructor",
<https://bugs.llvm.org/show_bug.cgi?id=50063> "code
dnl using consteval: 'clang/lib/CodeGen/Address.h:38: llvm::Value*
-dnl clang::CodeGen::Address::getPointer() const: Assertion `isValid()'
failed.'", or
+dnl clang::CodeGen::Address::getPointer() const: Assertion `isValid()'
failed.'",
dnl <https://developercommunity.visualstudio.com/t/1581879> "Bogus error C7595
with consteval
-dnl constructor in ternary expression (/std:c++latest)":
+dnl constructor in ternary expression (/std:c++latest)", or
+dnl <https://github.com/llvm/llvm-project/issues/54612> "C++20, consteval,
anonymous union:
+dnl llvm/lib/IR/Instructions.cpp:1491: void llvm::StoreInst::AssertOK():
Assertion
+dnl
`cast<PointerType>(getOperand(1)->getType())->isOpaqueOrPointeeTypeMatches(getOperand(0)->getType())
+dnl && "Ptr must be a pointer to Val type!"' failed.":
AC_LANG_PUSH([C++])
save_CXX=$CXX
if test "$COM" = MSC && test "$COM_IS_CLANG" != TRUE; then
@@ -14384,6 +14388,16 @@ AC_RUN_IFELSE([AC_LANG_PROGRAM([
struct S4 { consteval S4() = default; };
void f4(bool b) { b ? S4() : S4(); }
+
+ struct S5 {
+ consteval S5() { c = 0; }
+ char * f() { return &c; }
+ union {
+ char c;
+ int i;
+ };
+ };
+ auto s5 = S5().f();
], [
return (s.i == 1) ? 0 : 1;
])], [
