diff options
| author | Patrick Palka <ppalka@redhat.com> | 2022-10-14 09:07:01 -0400 |
|---|---|---|
| committer | Patrick Palka <ppalka@redhat.com> | 2022-10-14 09:07:01 -0400 |
| commit | d6a488f243acfac4bdbbb0eefbee3ae916159cf5 (patch) | |
| tree | 176780cf7d0809701da5f0fba501c21771a4b78a /gcc/cp/constexpr.cc | |
| parent | a75e9bee7c23403d3cc7085a249f230de50c4c3e (diff) | |
| download | gcc-d6a488f243acfac4bdbbb0eefbee3ae916159cf5.zip gcc-d6a488f243acfac4bdbbb0eefbee3ae916159cf5.tar.gz gcc-d6a488f243acfac4bdbbb0eefbee3ae916159cf5.tar.bz2 | |
c++ modules: ICE with dynamic_cast [PR106304]
The FUNCTION_DECL we build for __dynamic_cast has an empty DECL_CONTEXT
but trees_out::tree_node expects FUNCTION_DECLs to have non-empty
DECL_CONTEXT, thus we crash when streaming out the dynamic_cast in the
below testcase.
This patch naively fixes this by setting DECL_CONTEXT for __dynamic_cast
appropriately. I suppose we should push it into the namespace too, like
we do for __cxa_atexit which is similarly lazily declared.
PR c++/106304
gcc/cp/ChangeLog:
* constexpr.cc (cxx_dynamic_cast_fn_p): Check for abi_node
instead of global_namespace.
* rtti.cc (build_dynamic_cast_1): Set DECL_CONTEXT and
DECL_SOURCE_LOCATION when building dynamic_cast_node. Push
it into the namespace.
gcc/testsuite/ChangeLog:
* g++.dg/modules/pr106304_a.C: New test.
* g++.dg/modules/pr106304_b.C: New test.
Diffstat (limited to 'gcc/cp/constexpr.cc')
| -rw-r--r-- | gcc/cp/constexpr.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/cp/constexpr.cc b/gcc/cp/constexpr.cc index fb171a2..0366396 100644 --- a/gcc/cp/constexpr.cc +++ b/gcc/cp/constexpr.cc @@ -2088,7 +2088,7 @@ cxx_dynamic_cast_fn_p (tree fndecl) { return (cxx_dialect >= cxx20 && id_equal (DECL_NAME (fndecl), "__dynamic_cast") - && CP_DECL_CONTEXT (fndecl) == global_namespace); + && CP_DECL_CONTEXT (fndecl) == abi_node); } /* Often, we have an expression in the form of address + offset, e.g. |