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* [gcc r14-10100] c++: Fix ICE with xobj parms and maybe incomplete decl-specifiers
@ 2024-04-23 23:48 Nathaniel Shead
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From: Nathaniel Shead @ 2024-04-23 23:48 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:7318f1a389769ab540f414fcba743e90051d466b
commit r14-10100-g7318f1a389769ab540f414fcba743e90051d466b
Author: Nathaniel Shead <nathanieloshead@gmail.com>
Date: Sat Apr 20 14:44:11 2024 +1000
c++: Fix ICE with xobj parms and maybe incomplete decl-specifiers
This fixes a null dereference issue when decl_specifiers.type is not yet
provided.
gcc/cp/ChangeLog:
* parser.cc (cp_parser_parameter_declaration): Check if
decl_specifiers.type is null.
gcc/testsuite/ChangeLog:
* g++.dg/cpp23/explicit-obj-basic7.C: New test.
Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>
Diff:
---
gcc/cp/parser.cc | 5 +++--
gcc/testsuite/g++.dg/cpp23/explicit-obj-basic7.C | 9 +++++++++
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index c23758cf5cf..598380dda08 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -25780,8 +25780,9 @@ cp_parser_parameter_declaration (cp_parser *parser,
}
if (xobj_param_p
- && (declarator ? declarator->parameter_pack_p
- : PACK_EXPANSION_P (decl_specifiers.type)))
+ && ((declarator && declarator->parameter_pack_p)
+ || (decl_specifiers.type
+ && PACK_EXPANSION_P (decl_specifiers.type))))
{
location_t xobj_param
= make_location (decl_specifiers.locations[ds_this],
diff --git a/gcc/testsuite/g++.dg/cpp23/explicit-obj-basic7.C b/gcc/testsuite/g++.dg/cpp23/explicit-obj-basic7.C
new file mode 100644
index 00000000000..a474e97fc18
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp23/explicit-obj-basic7.C
@@ -0,0 +1,9 @@
+// { dg-do compile { target c++23 } }
+
+// Shouldn't ICE
+struct S {
+ void a(this long);
+ void b(this const long);
+ void c(this long unsigned);
+ void c(this signed);
+};
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