https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
Andreas Krebbel changed:
What|Removed |Added
CC||doko at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #11 from Jakub Jelinek ---
Author: jakub
Date: Thu Jan 12 21:29:43 2017
New Revision: 244383
URL: https://gcc.gnu.org/viewcvs?rev=244383=gcc=rev
Log:
PR bootstrap/79069
* cfgrtl.c (rtl_tidy_fallthru_edge): For
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #10 from Jakub Jelinek ---
Seems the barrier after the unconditional __morestack call is removed by
rtl_tidy_fallthru_edge.
I think:
--- gcc/cfgrtl.c.jj 2017-01-01 12:45:35.0 +0100
+++ gcc/cfgrtl.c2017-01-12
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #8 from Jakub Jelinek ---
Maybe the easiest fix would be to emit the __morestack magic call patterns as
ASM_OPERANDS like one that is emitted for asm goto. The cfgrtl.c etc. code has
already years of fixes to handle those calls and
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #7 from Jakub Jelinek ---
The ICE is during the jump2 pass, there is EDGE_FALLTHRU in between
(note 21 1 942 2 [bb 2] NOTE_INSN_BASIC_BLOCK)
(insn 942 21 943 2 (unspec_volatile [
(code_label 0 0 0 10311 (nil) [2 uses])
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #6 from Dominik Vogt ---
Confirmed; bisecting now.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #5 from Jakub Jelinek ---
(In reply to Dominik Vogt from comment #3)
> > --disable-bootstrap
>
> ?
Originally (the #c0 error) it has been of course --enable-bootstrap). But when
trying to reproduce it, I didn't want to wait so
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #4 from Jakub Jelinek ---
And with r244350 ../configure --disable-bootstrap
--enable-languages=c,c++,go,lto --with-long-double-128 --with-arch=z9-109
--with-tune=z10
reproduced too.
Note that without --enable-checking=release, the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #3 from Dominik Vogt ---
> --disable-bootstrap
?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #2 from Jakub Jelinek ---
Vanilla r244305, and
../configure --disable-bootstrap --enable-languages=c,c++,go,lto \
--with-long-double-128 --with-arch=z9-109 --with-tune=z10
make -j4
on s390x.
Let me retry with latest trunk.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
--- Comment #1 from Dominik Vogt ---
What are the revision and the configure flags that trigger this, please?
r244350 bootstraps without problem here.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79069
Jakub Jelinek changed:
What|Removed |Added
CC||ian at gcc dot gnu.org,
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