https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Eric Botcazou changed:
What|Removed |Added
Attachment #40258|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #13 from Eric Botcazou ---
Created attachment 40258
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40258&action=edit
Tentative fix
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #12 from Eric Botcazou ---
> But verify_rtx_sharing also has:
>
> case CLOBBER:
> /* Share clobbers of hard registers (like cc0), but do not share
> pseudo reg
> clobbers or clobbers of hard registers that originat
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Eric Botcazou changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #11 from Jakub Jelinek ---
But verify_rtx_sharing also has:
case CLOBBER:
/* Share clobbers of hard registers (like cc0), but do not share pseudo
reg
clobbers or clobbers of hard registers that originated as pseudo
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #10 from Eric Botcazou ---
It's copy_insn_1:
case CLOBBER:
/* Share clobbers of hard registers (like cc0), but do not share pseudo
reg
clobbers or clobbers of hard registers that originated as pseudos.
Thi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #9 from Eric Botcazou ---
It's apparently the bbro pass. Fixing.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #8 from Jakub Jelinek ---
So in what other insn does the clobber appear and which pass introduced it?
Easiest is to
b error
run
then notice the address passed to verify_rtx_sharing and put a breakpoint on
verify_rtx_sharing conditiona
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Eric Botcazou changed:
What|Removed |Added
Status|WAITING |NEW
--- Comment #7 from Eric Botcazou -
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #6 from Eric Botcazou ---
I cannot reproduce on native and valgrind doesn't complain. Can you attach the
first RTL dump which contains the problematic insn?
(insn 196 94 197 (clobber (reg/i:SI 8 %o0 [24]))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #5 from ro at CeBiTec dot Uni-Bielefeld.DE ---
> --- Comment #4 from Eric Botcazou ---
>> Is your compiler configured with --enable-checking=rtl ?
>
> Yes, but I don't think Rainer's is.
not explicitly: I have
S["stage1_checking"]=
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #4 from Eric Botcazou ---
> Is your compiler configured with --enable-checking=rtl ?
Yes, but I don't think Rainer's is.
> Perhaps it can be only reproduced natively, or relies on particular
> auto-host.h content (I don't have cross
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
--- Comment #2 from Jakub Jelinek ---
Can't reproduce in a cross-compiler, I also see (clobber (reg/i:SI 8 %o0 [24]))
just once in the IL. That said, rtl sharing verification has been mistakenly
not performed even with --enable-checking=rtl duri
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Eric Botcazou changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642
Rainer Orth changed:
What|Removed |Added
Target Milestone|--- |7.0
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