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 <rguent...@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 ----
