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re PR c++/9373 (ICE with -fstrict-aliasing in set_mem_alias_set, at emit-rtl.c:1932)

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PR c++/9373
	* g++.dg/opt/ptrmem2.C: New test.

	PR c++/9373
	* cp-lang.c (cxx_get_alias_set): Use alias set zero for
	pointers to member functions.

From-SVN: r64070
This commit is contained in:
Mark Mitchell 2003-03-10 07:26:34 +00:00 committed by Mark Mitchell
parent f5d9895a06
commit 1d719415f5
4 changed files with 27 additions and 2 deletions
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4
gcc/cp/ChangeLog
View File

@ -1,5 +1,9 @@
2003-03-09 Mark Mitchell <mark@codesourcery.com>
PR c++/9373
* cp-lang.c (cxx_get_alias_set): Use alias set zero for
pointers to member functions.
PR c++/8534
* decl.c (build_ptrmemfunc_type): Do not allow default arugments
in pointer-to-member-function types.

10
gcc/cp/cp-lang.c
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@ -262,8 +262,14 @@ ok_to_generate_alias_set_for_type (tree t)
static HOST_WIDE_INT
cxx_get_alias_set (tree t)
{
/* It's not yet safe to use alias sets for classes in C++. */
if (!ok_to_generate_alias_set_for_type(t))
if (/* It's not yet safe to use alias sets for some classes in C++. */
!ok_to_generate_alias_set_for_type (t)
/* Nor is it safe to use alias sets for pointers-to-member
functions, due to the fact that there may be more than one
RECORD_TYPE type corresponding to the same pointer-to-member
type. */
|| TYPE_PTRMEMFUNC_P (t))
return 0;
return c_common_get_alias_set (t);

3
gcc/testsuite/ChangeLog
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@ -1,5 +1,8 @@
2003-03-09 Mark Mitchell <mark@codesourcery.com>
PR c++/9373
* g++.dg/opt/ptrmem2.C: New test.
PR c++/8534
* g++.dg/opt/ptrmem1.C: New test.

12
gcc/testsuite/g++.dg/opt/ptrmem2.C Normal file
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@ -0,0 +1,12 @@
typedef unsigned int Mword;
struct Thread
{
Mword sys_ipc_log();
void hook_ipc_vector();
unsigned (Thread::*syscall_table)();
};
void Thread::hook_ipc_vector()
{
syscall_table = &Thread::sys_ipc_log;
}