https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #17 from Honggyu Kim hong.gyu.kim at lge dot com ---
(In reply to ktkachov from comment #16)
I'm working on a patch btw.
This bug is only shown in arm code so maybe the bug is in gcc/config/arm
directory.
I was trying to fix it
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
ktkachov at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |ASSIGNED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #18 from ktkachov at gcc dot gnu.org ---
(In reply to Honggyu Kim from comment #17)
(In reply to ktkachov from comment #16)
I'm working on a patch btw.
This bug is only shown in arm code so maybe the bug is in gcc/config/arm
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #14 from ktkachov at gcc dot gnu.org ---
Right, I think the root cause is the emit_push_insn in expr.c.
It's supposed to push what needs to be pushed from a partial argument onto the
stack and do the moves into the registers.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #15 from ktkachov at gcc dot gnu.org ---
Hmmm, actually it's not that simple, as testing showed.
The comment at the final load-to-regs code says:
/* If part should go in registers, copy that part
into the appropriate registers.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #13 from Honggyu Kim hong.gyu.kim at lge dot com ---
Created attachment 35041
-- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35041action=edit
backport patch from linaro
Jongsung Kim (neidhard@lge.com) found a patch that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #12 from Honggyu Kim hong.gyu.kim at lge dot com ---
(In reply to ktkachov from comment #11)
Thinking about it again, there's no reason not to do sibcalls, it's just the
code gets confused on how to shuffle the arguments around.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #11 from ktkachov at gcc dot gnu.org ---
Thinking about it again, there's no reason not to do sibcalls, it's just the
code gets confused on how to shuffle the arguments around. Will investigate
deeper
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
ktkachov at gcc dot gnu.org changed:
What|Removed |Added
CC||ktkachov at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #8 from Honggyu Kim hong.gyu.kim at lge dot com ---
(In reply to Mikael Pettersson from comment #6)
(In reply to Honggyu Kim from comment #4)
Can I add this testcase with your modification as my first gcc contribution?
:)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
Honggyu Kim hong.gyu.kim at lge dot com changed:
What|Removed |Added
Known to fail||4.9.2
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
James Greenhalgh jgreenhalgh at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #6 from Mikael Pettersson mikpelinux at gmail dot com ---
(In reply to Honggyu Kim from comment #4)
Can I add this testcase with your modification as my first gcc contribution?
:)
Sure, just attach it to this PR as a new test
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
Mikael Pettersson mikpelinux at gmail dot com changed:
What|Removed |Added
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #4 from Honggyu Kim hong.gyu.kim at lge dot com ---
Dear Mikael Pettersson
I also have a runtime testcase, which is different from dejagnu format.
Can I add this testcase with your modification as my first gcc contribution? :)
I was
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #5 from Honggyu Kim hong.gyu.kim at lge dot com ---
I just wrote foo function code separately to debug gcc more easily by compile
only problematic code.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65358
--- Comment #2 from Honggyu Kim hong.gyu.kim at lge dot com ---
Sorry, I miss typed the initial argument status for foo
I will modified MEM[sp-4]: p.killer to MEM[sp+4]: p.killer as follows:
r0: arg1
r1: arg2
r2: arg3
r3: p.fine
MEM[sp]:
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