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| author | Mark Mitchell <mark@codesourcery.com> | 2003-03-10 07:26:34 +0000 |
|---|---|---|
| committer | Mark Mitchell <mmitchel@gcc.gnu.org> | 2003-03-10 07:26:34 +0000 |
| commit | 1d719415f50716bb93edfafb789ee8d2fcf38bd1 (patch) | |
| tree | a26c21de35f0a5274aeeaf713351a5bc07a214a1 | |
| parent | f5d9895a069ebee45e9f656c7083bbc5d671baf0 (diff) | |
| download | gcc-1d719415f50716bb93edfafb789ee8d2fcf38bd1.zip gcc-1d719415f50716bb93edfafb789ee8d2fcf38bd1.tar.gz gcc-1d719415f50716bb93edfafb789ee8d2fcf38bd1.tar.bz2 | |
re PR c++/9373 (ICE with -fstrict-aliasing in set_mem_alias_set, at emit-rtl.c:1932)
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
| -rw-r--r-- | gcc/cp/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/cp/cp-lang.c | 10 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/opt/ptrmem2.C | 12 |
4 files changed, 27 insertions, 2 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 257673f..72dcb9d 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -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. diff --git a/gcc/cp/cp-lang.c b/gcc/cp/cp-lang.c index 3671027..b35c31c 100644 --- a/gcc/cp/cp-lang.c +++ b/gcc/cp/cp-lang.c @@ -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); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 517f3b4..976ce7d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -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. diff --git a/gcc/testsuite/g++.dg/opt/ptrmem2.C b/gcc/testsuite/g++.dg/opt/ptrmem2.C new file mode 100644 index 0000000..19c43f7 --- /dev/null +++ b/gcc/testsuite/g++.dg/opt/ptrmem2.C @@ -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; +} |