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[Bug rtl-optimization/42889] [4.5 Regression] "-fcompare-debug failure (length)" with "-O1 -fgcse"
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Jan 2010 15:11:18 -0000
- Subject: [Bug rtl-optimization/42889] [4.5 Regression] "-fcompare-debug failure (length)" with "-O1 -fgcse"
- References: <bug-42889-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #12 from jakub at gcc dot gnu dot org 2010-01-28 15:11 -------
So not call df_set_bb_dirty in df_insn_rescan if DEBUG_INSN_P (insn), or not
mark dirty only certain problems?
I believe DEBUG_INSNs aren't meant to extend lifetime of pseudos, so perhaps
lr/live problems don't need to be marked dirty, what about others?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42889