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[Bug target/39247] FAIL: gcc.dg/tree-prof/bb-reorg.c compilation, -fprofile-use -D_PROFILE_USE
- From: "rearnsha at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Oct 2009 15:26:41 -0000
- Subject: [Bug target/39247] FAIL: gcc.dg/tree-prof/bb-reorg.c compilation, -fprofile-use -D_PROFILE_USE
- References: <bug-39247-276@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rearnsha at gcc dot gnu dot org 2009-10-19 15:26 -------
(In reply to comment #1)
> Subject: Re: New: FAIL: gcc.dg/tree-prof/bb-reorg.c
> compilation, -fprofile-use -D_PROFILE_USE
>
> The ARM constant pool code needs to handle a
> NOTE_INSN_SWITCH_TEXT_SECTIONS note in some way as indicating insns on one
> side mustn't use constant pool entries on the other side. One possible
> approach would be treating such a note as an insn of length 4100, but
> there might be a cleaner way.
>
I don't think there should be such notes on ARM due to the branch-range
limitation. We can't arbitrarily jump between sections in Thumb state, for
example
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39247