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[Bug debug/46171] [4.6 Regression] ICE: in gen_rtx_SUBREG, at emit-rtl.c:774 with -fno-tree-dce -g
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 9 Nov 2010 19:04:56 +0000
- Subject: [Bug debug/46171] [4.6 Regression] ICE: in gen_rtx_SUBREG, at emit-rtl.c:774 with -fno-tree-dce -g
- Auto-submitted: auto-generated
- References: <bug-46171-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46171
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-09 19:04:48 UTC ---
Author: jakub
Date: Tue Nov 9 19:04:44 2010
New Revision: 166504
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166504
Log:
PR debug/46171
* df-problems.c (struct dead_debug_use, struct dead_debug): Move
earlier.
(df_set_unused_notes_for_mw, df_create_unused_note): Add DEBUG
argument, call dead_debug_reset when adding REG_UNUSED note.
(dead_debug_reset): New function.
(df_note_bb_compute): Adjust df_set_unused_notes_for_mw and
df_create_unused_note callers.
* gcc.dg/pr46171.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr46171.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/df-problems.c
trunk/gcc/testsuite/ChangeLog