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| author | Jakub Jelinek <jakub@redhat.com> | 2023-11-16 17:42:22 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-11-16 17:42:22 +0100 |
| commit | 0fa32aeaa6da4ef9566d98a6fb541dd7427d7d36 (patch) | |
| tree | 835da0f2c0d8c429ac09888f0cceeb97da1696dc | |
| parent | 06ff410e0dea135d41bc5f7a9a007d7ba6822dbf (diff) | |
| download | gcc-0fa32aeaa6da4ef9566d98a6fb541dd7427d7d36.zip gcc-0fa32aeaa6da4ef9566d98a6fb541dd7427d7d36.tar.gz gcc-0fa32aeaa6da4ef9566d98a6fb541dd7427d7d36.tar.bz2 | |
c++: Fix error recovery ICE [PR112365]
check_field_decls for DECL_C_BIT_FIELD FIELD_DECLs with error_mark_node
TREE_TYPE continues early and doesn't call check_bitfield_decl which would
either set DECL_BIT_FIELD, or clear DECL_C_BIT_FIELD. So, the following
testcase ICEs after emitting tons of errors, because
SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD asserts DECL_BIT_FIELD.
The patch skips that for FIELD_DECLs with error_mark_node, another
option would be to check DECL_BIT_FIELD in addition to DECL_C_BIT_FIELD.
2023-11-16 Jakub Jelinek <jakub@redhat.com>
PR c++/112365
* class.cc (layout_class_type): Don't
SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD on FIELD_DECLs with
error_mark_node type.
* g++.dg/cpp0x/pr112365.C: New test.
| -rw-r--r-- | gcc/cp/class.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/pr112365.C | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/cp/class.cc b/gcc/cp/class.cc index 9d4d95f..4766b7c 100644 --- a/gcc/cp/class.cc +++ b/gcc/cp/class.cc @@ -6962,7 +6962,8 @@ layout_class_type (tree t, tree *virtuals_p) check_bitfield_decl eventually sets DECL_SIZE (field) to that width. */ && (DECL_SIZE (field) == NULL_TREE - || integer_zerop (DECL_SIZE (field)))) + || integer_zerop (DECL_SIZE (field))) + && TREE_TYPE (field) != error_mark_node) SET_DECL_FIELD_CXX_ZERO_WIDTH_BIT_FIELD (field, 1); check_non_pod_aggregate (field); } diff --git a/gcc/testsuite/g++.dg/cpp0x/pr112365.C b/gcc/testsuite/g++.dg/cpp0x/pr112365.C new file mode 100644 index 0000000..23409cb --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/pr112365.C @@ -0,0 +1,8 @@ +// PR c++/112365 +// { dg-do compile { target c++11 } } +// { dg-excess-errors "" } + +template <typename> struct A; +template <typename T> A <T> foo (T; +template <typename T> struct A { constexpr A : T {} } +struct { bar ( { foo (this) |