[PATCH] Fix PR57190
Richard Biener
rguenther@suse.de
Tue May 7 10:37:00 GMT 2013
The following fixes the SSA_NAME_OCCURS_IN_ABNORMAL_PHI flag when
we propagate the virtual operand during clobber sinking.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2013-06-07 Richard Biener <rguenther@suse.de>
PR middle-end/57190
* tree-eh.c (sink_clobbers): Properly propagate
SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
* g++.dg/torture/pr57190.C: New testcase.
Index: gcc/tree-eh.c
===================================================================
*** gcc/tree-eh.c (revision 198667)
--- gcc/tree-eh.c (working copy)
*************** sink_clobbers (basic_block bb)
*** 3401,3406 ****
--- 3401,3411 ----
FOR_EACH_IMM_USE_STMT (use_stmt, iter, vuse)
FOR_EACH_IMM_USE_ON_STMT (use_p, iter)
SET_USE (use_p, gimple_vdef (stmt));
+ if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (vuse))
+ {
+ SSA_NAME_OCCURS_IN_ABNORMAL_PHI (gimple_vdef (stmt)) = 1;
+ SSA_NAME_OCCURS_IN_ABNORMAL_PHI (vuse) = 0;
+ }
/* Adjust the incoming virtual operand. */
SET_USE (PHI_ARG_DEF_PTR_FROM_EDGE (vphi, succe), gimple_vuse (stmt));
SET_USE (gimple_vuse_op (stmt), vuse);
Index: gcc/testsuite/g++.dg/torture/pr57190.C
===================================================================
*** gcc/testsuite/g++.dg/torture/pr57190.C (revision 0)
--- gcc/testsuite/g++.dg/torture/pr57190.C (working copy)
***************
*** 0 ****
--- 1,42 ----
+ // { dg-do compile }
+
+ namespace __gnu_cxx __attribute__ ((__visibility__ ("default"))) {
+ template<typename _Tp> class new_allocator {
+ };
+ }
+ namespace std {
+ template<typename> class allocator;
+ template<class _CharT> struct char_traits;
+ template<typename _CharT, typename _Traits = char_traits<_CharT>, typename _Alloc = allocator<_CharT> > class basic_string;
+ typedef basic_string<char> string;
+ template<typename _Tp> class allocator: public __gnu_cxx::new_allocator<_Tp> {
+ };
+ template<typename _CharT, typename _Traits, typename _Alloc> class basic_string {
+ public:
+ basic_string(const _CharT* __s, const _Alloc& __a = _Alloc());
+ };
+ }
+ class UIException {
+ };
+ class PasswordDialog {
+ void run() throw (UIException);
+ };
+ class MessageBox {
+ public:
+ MessageBox (std::string t) throw (UIException);
+ virtual int run() throw (UIException) ;
+ };
+ extern "C" {
+ struct __jmp_buf_tag {
+ };
+ extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) throw ();
+ typedef struct __jmp_buf_tag sigjmp_buf[1];
+ }
+ sigjmp_buf password_dialog_sig_jmp_buf;
+ void PasswordDialog::run() throw (UIException)
+ {
+ __sigsetjmp (password_dialog_sig_jmp_buf, 1);
+ MessageBox* errmsg = __null;
+ errmsg = new MessageBox ("E R R O R");
+ errmsg->run();
+ }
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