https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #16 from hjl at gcc dot gnu.org ---
Author: hjl
Date: Tue Jan 26 12:51:07 2016
New Revision: 232825
URL: https://gcc.gnu.org/viewcvs?rev=232825&root=gcc&view=rev
Log:
Update stack alignment in ix86_update_stack_boundary
Stack alignm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
H.J. Lu changed:
What|Removed |Added
Attachment #37466|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #14 from H.J. Lu ---
(In reply to H.J. Lu from comment #13)
> Created attachment 37466 [details]
> A patch
>
> I am testing this.
This patch is wrong. After ix86_finalize_stack_realign_flags, there should
be no stack alignment chan
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #13 from H.J. Lu ---
Created attachment 37466
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37466&action=edit
A patch
I am testing this.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #12 from Jakub Jelinek ---
And I bet the bug is exactly in the:
/* preferred_stack_boundary is never updated for call
9499 expanded from tls descriptor. Update it here. We don't
update it in
9500 ex
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #11 from Jakub Jelinek ---
Ah, missed the second testcase in #c4. That started with r210222.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #10 from Jakub Jelinek ---
(In reply to Jakub Jelinek from comment #9)
> I need additional -march=x86-64 to trigger this. With that it started with
> r228231.
Note that is with #c4 testcase.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #9
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #8 from Uroš Bizjak ---
(In reply to H.J. Lu from comment #7)
> This is caused by r210220.
A testsuite-only patch that only changes scan-assembler strings?
* gcc.target/i386/avx256-unaligned-load-2.c,
gcc.target/i386
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
H.J. Lu changed:
What|Removed |Added
CC||kirill.yukhin at intel dot com
--- Comment #7
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
Andrew Pinski changed:
What|Removed |Added
Keywords||ice-on-valid-code
Target Milestone|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
Uroš Bizjak changed:
What|Removed |Added
CC||hjl.tools at gmail dot com
--- Comment #6
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #5 from Mark Wielaard ---
Thanks for finding the duplicate and creating a small reproducer. This is
indeed a GCC 6 regression. valgrind builds fine with gcc (GCC) 5.3.1 20151207
(Red Hat 5.3.1-2) but fails with gcc (GCC) 6.0.0 2016012
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
Markus Trippelsdorf changed:
What|Removed |Added
CC||trippels at gcc dot gnu.org
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