https://bugs.kde.org/show_bug.cgi?id=379094
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Summary|False positive when passing |syscall w
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--- Comment #24 from Ivo Raisr <iv...@ivosh.net> ---
Patch 1/4 landed in the repo.
I expect that Aleksandar prepares another patch for review.
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--- Comment #43 from Ivo Raisr <iv...@ivosh.net> ---
(In reply to Petar Jovanovic from comment #41)
> With the changes (patch 010 Valgrind/VEX) applied, Memcheck is crashing on
> MIPS32/MIPS64.
Petar, thank you for testing the patches.
Plea
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #42 from Ivo Raisr <iv...@ivosh.net> ---
Created attachment 107004
--> https://bugs.kde.org/attachment.cgi?id=107004=edit
patch 010 - VEX part + some debugging for MIPS crashes
This patch adds some debugging statements in find_
https://bugs.kde.org/show_bug.cgi?id=382998
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Version|
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--- Comment #55 from Ivo Raisr <iv...@ivosh.net> ---
Patches 012 should fix the assertion hit on MIPS platform in function
find_free_rreg().
Petar, please could you test please?
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Status|AS
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--- Comment #59 from Ivo Raisr <iv...@ivosh.net> ---
Thank you, Petar. I was able to download the file and decipher it. The root
cause is now known and I have to find an elegant way how to fix it.
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--- Comment #62 from Ivo Raisr <iv...@ivosh.net> ---
Patches 013 should fix the assertion hit on MIPS platform
when doing MOV coalescing and the destination vreg is becoming dead.
Petar, please could you test please?
Also I think that this sc
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #68 from Ivo Raisr <iv...@ivosh.net> ---
(In reply to Petar Jovanovic from comment #67)
> This seems to be related to the way how MIPS port uses and handles
> DivModU128to64 and some other Iops.
> The issue comes from
https://bugs.kde.org/show_bug.cgi?id=381819
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--- Comment #66 from Ivo Raisr <iv...@ivosh.net> ---
Pending no other problems arise, I would like to land new VEX register
allocator v3 after SVN->GIT migration is completed and the dust settles. That
is in 2-3 weeks from now.
The new v
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #65 from Ivo Raisr <iv...@ivosh.net> ---
(In reply to Petar Jovanovic from comment #63)
> The latest patch (lucky 13) seems to work fine on one MIPS variant I
> have tested. Thanks for the extra work.
> I will test other MIPS
https://bugs.kde.org/show_bug.cgi?id=381819
--- Comment #11 from Ivo Raisr <iv...@ivosh.net> ---
Awesome!
So the patch is able properly decode the following variants:
bextr 408,%eax,%edx
bextr 404,%eax,%edx
bextr 1D03,%rcx,%rcx
bextr 305,%eax,%eax
bextr A0C,%ebx,%edx
bextr 305,%eax,%eax
https://bugs.kde.org/show_bug.cgi?id=381819
--- Comment #9 from Ivo Raisr <iv...@ivosh.net> ---
Thank you for testing this.
So I can see two problems in the tests you conducted:
1. There are some new unrecognized instructions. You progressed further now
that bextr is supported and the
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #29 from Ivo Raisr <iv...@ivosh.net> ---
I tried to do performance comparison of reg_alloc v3 implementation as it
progresses in terms of patches. However the performance tests are not reliable
- I could not get consistent resul
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #28 from Ivo Raisr <iv...@ivosh.net> ---
The attached patches 007 implement groups of real registers in RRegUniverse.
They help to efficiently answer questions such as "Find me a free register of
the given class".
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--- Comment #22 from Ivo Raisr <iv...@ivosh.net> ---
Memcheck "--stats=yes" results running on Firefox under amd64/Linux (Ubuntu):
v2:
716,447 (19,412,410 -> 331,710,658; ratio 17.1) [213,213 scs] avg tce size 462
v3 (patches 006):
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #25 from Ivo Raisr <iv...@ivosh.net> ---
Right now the only remaining TODOs from patches 006 are:
/* TODO-JIT: To solve more efficiently questions such as "Find me a free
register of the given class" it would h
https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #21 from Ivo Raisr <iv...@ivosh.net> ---
I am currently on vacations so won't probably make any progress until the end
of July...
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--- Comment #32 from Ivo Raisr <iv...@ivosh.net> ---
Patches 008 implement direct reload optimization.
Now the only remaining TODO is the following one:
/* TODO-JIT: Contrary to what the algorithm overview
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https://bugs.kde.org/show_bug.cgi?id=382407
Bug ID: 382407
Summary: vg_perf needs "--terse" command line option
Product: valgrind
Version: 3.14 SVN
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity:
https://bugs.kde.org/show_bug.cgi?id=382256
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--- Comment #36 from Ivo Raisr <iv...@ivosh.net> ---
Some performance comparison...
Number of instructions executed either in function
doRegisterAllocation() [Valgrind baseline, v2] or
doRegisterAllocation_v3 [new VEX register allocat
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--- Comment #35 from Ivo Raisr <iv...@ivosh.net> ---
The final set of patches implementing new VEX register allocator version 3
for AMD64 and X86 architectures.
All regression tests pass successfully, Firefox runs ok.
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--- Comment #39 from Ivo Raisr <iv...@ivosh.net> ---
Patches 010 implement the necessary changes for supporting the register
allocator v3 to all architectures supported by VEX.
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--- Comment #13 from Ivo Raisr <iv...@ivosh.net> ---
Patches 005 implement function find_vreg_to_spill().
With these patches, the register allocator v3 is able to produce correct
results for all tests in the Valgrind regression test suite.
The
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--- Comment #17 from Ivo Raisr <iv...@ivosh.net> ---
Thank you for pointers where to focus next.
Indeed, that critical functionality is not implemented yet:
line 873 of host_generic_reg_alloc3.c:
/* Find a free rreg of the correct
https://bugs.kde.org/show_bug.cgi?id=379039
--- Comment #11 from Ivo Raisr <iv...@ivosh.net> ---
First part committed in SVN r16314.
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--- Comment #3 from Ivo Raisr <iv...@ivosh.net> ---
Follow up commit in SVN r16315 (fix mismerge from r16314).
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--- Comment #10 from Ivo Raisr <iv...@ivosh.net> ---
Modified the previous patch slightly based on comment by Matthias Schwarzott.
POST(sys_prctl) syscall wrapper needs to take into account that ARG2 might not
need to be nul-terminated.
-
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--- Comment #50 from Ivo Raisr <iv...@ivosh.net> ---
Petar,
Thank you for the debugging output. Unfortunately it is not sufficient
to infer what went wrong.
Please could you set to 1 the following #define's at the beginning of
host_generic_reg_al
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--- Comment #47 from Ivo Raisr <iv...@ivosh.net> ---
Patches 011 (re-)introduce command line option --vex-regalloc-version=2|3 which
allows to switch between register allocator implementations. Note that version
3 (new implementation) is now the d
https://bugs.kde.org/show_bug.cgi?id=79362
--- Comment #69 from Ivo Raisr <iv...@ivosh.net> ---
Just a quick note:
Once this functionality is integrated, remove the corresponding entry from www
page http://valgrind.org/help/projects.html:
---
Preserving debugging infor
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--- Comment #52 from Ivo Raisr <iv...@ivosh.net> ---
Petar, thank you for the detailed output. Now the root cause is clear and I
need to fix slightly the algorithm in find_free_rreg().
I'll prepare a new set of patches...
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https://bugs.kde.org/show_bug.cgi?id=381553
--- Comment #57 from Ivo Raisr <iv...@ivosh.net> ---
Petar, thank you again for testing patches 012!
Please could you set to 1 the following #define's at the beginning of
host_generic_reg_alloc3.c:
#define DEBUG_REGALLOC 1
#
https://bugs.kde.org/show_bug.cgi?id=381819
--- Comment #5 from Ivo Raisr <iv...@ivosh.net> ---
So "bextr" should be supported by function dis_ESC_0F38__VEX(), file
VEX/priv/guest_amd64_toIR.c.
Either it is some uncommon variant or the decoder got confused somehow.
You can st
https://bugs.kde.org/show_bug.cgi?id=322586
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--- Comment #7 from Ivo Raisr <iv...@ivosh.net> ---
Weird, line 20564 pertains to decoding "pop" instruction.
There is a test case in Valgrind regression test suite:
none/tests/amd64/bmi.c which exercises bextr with the following oper
https://bugs.kde.org/show_bug.cgi?id=383602
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https://bugs.kde.org/show_bug.cgi?id=370028
--- Comment #36 from Ivo Raisr <iv...@ivosh.net> ---
(In reply to Tamara Vlahovic from comment #35)
Committed in Valgrind SVN as r16365.
Nice approach, thank you for the patch.
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--- Comment #15 from Ivo Raisr <iv...@ivosh.net> ---
Follow up commit SVN r16366.
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Ivo Raisr <iv...@ivosh.net> changed:
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--- Comment #4 from Ivo Raisr <iv...@ivosh.net> ---
Created attachment 105544
--> https://bugs.kde.org/attachment.cgi?id=105544=edit
patch to increase load address for almost all platforms to 0x5800
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Ivo Raisr <iv...@ivosh.net> changed:
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Resolution|--- |FIXED
https://bugs.kde.org/show_bug.cgi?id=379838
Bug ID: 379838
Summary: disAMode(x86): not an addr!
Product: valgrind
Version: 3.13 SVN
Platform: Compiled Sources
OS: Linux
Status: UNCONFIRMED
Severity: crash
https://bugs.kde.org/show_bug.cgi?id=379838
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--- Comment #5 from Ivo Raisr <iv...@ivosh.net> ---
Please test the attached patch [1] which increases the load address for almost
all platforms to 0x5800 (from 0x3800). This gives another 512 MB for
executable without changing linkage
https://bugs.kde.org/show_bug.cgi?id=370028
--- Comment #42 from Ivo Raisr <iv...@ivosh.net> ---
(In reply to Tamara Vlahovic from comment #41)
Indeed, thank you for spotting it. I think it was caused by a mismerge from
TileGX port removal.
Commited as SVN r16377.
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--- Comment #6 from Ivo Raisr <iv...@ivosh.net> ---
Created attachment 105560
--> https://bugs.kde.org/attachment.cgi?id=105560=edit
patch to increase load address for almost all platforms to 0x5800 (v2)
The previous patch forgot
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--- Comment #12 from Ivo Raisr <iv...@ivosh.net> ---
Created attachment 105438
--> https://bugs.kde.org/attachment.cgi?id=105438=edit
proposed patch
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--- Comment #2 fr
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