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[PATCH] Fix PR58402


I see no compelling reason to not run pass_late_warn_uninitialized
really late.

Thus,
bootstrapped and tested on x86_64-unknown-linux-gnu, applied.

Richard.

2013-09-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/58402
	* passes.def: Move pass_late_warn_uninitialized later.

Index: gcc/passes.def
===================================================================
*** gcc/passes.def	(revision 202515)
--- gcc/passes.def	(working copy)
*************** along with GCC; see the file COPYING3.
*** 239,245 ****
        NEXT_PASS (pass_vrp);
        NEXT_PASS (pass_cd_dce);
        NEXT_PASS (pass_tracer);
! 
        /* FIXME: If DCE is not run before checking for uninitialized uses,
  	 we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
  	 However, this also causes us to misdiagnose cases that should be
--- 239,251 ----
        NEXT_PASS (pass_vrp);
        NEXT_PASS (pass_cd_dce);
        NEXT_PASS (pass_tracer);
!       NEXT_PASS (pass_dse);
!       NEXT_PASS (pass_forwprop);
!       NEXT_PASS (pass_phiopt);
!       NEXT_PASS (pass_fold_builtins);
!       NEXT_PASS (pass_optimize_widening_mul);
!       NEXT_PASS (pass_tail_calls);
!       NEXT_PASS (pass_rename_ssa_copies);
        /* FIXME: If DCE is not run before checking for uninitialized uses,
  	 we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
  	 However, this also causes us to misdiagnose cases that should be
*************** along with GCC; see the file COPYING3.
*** 253,265 ****
           number of false positives from it.  */
        NEXT_PASS (pass_split_crit_edges);
        NEXT_PASS (pass_late_warn_uninitialized);
-       NEXT_PASS (pass_dse);
-       NEXT_PASS (pass_forwprop);
-       NEXT_PASS (pass_phiopt);
-       NEXT_PASS (pass_fold_builtins);
-       NEXT_PASS (pass_optimize_widening_mul);
-       NEXT_PASS (pass_tail_calls);
-       NEXT_PASS (pass_rename_ssa_copies);
        NEXT_PASS (pass_uncprop);
        NEXT_PASS (pass_local_pure_const);
    POP_INSERT_PASSES ()
--- 259,264 ----


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