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Fixes assertion violation triggered in LLVM 13 CI job due to incompatibility
with default target triple and datalayout.
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Some Linux distributions, e.g. Fedora, do not install the unversioned Python
binary by default and Python 2 has been dead for more than a year.
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category (with --write-cov, --write-cvcs etc.)
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`-O0` has to be used in conjunction with, not instead of
`-Xclang -disable-O0-optnone`
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Clone some tests to have their 3.7 version. 'call's, 'load's and
'getelementptr's match the new specification in them.
@andreamattavelli: Fixed test cases: BitCastAlias test cases included
modification to alias specifications that require LLVM 3.8
[v2] added comments what was changed and why
[v3] the new tests are without suffix, the old ones have ".leq36".
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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configuration, TravisCI scripts and Dockerfile build appropriately.
There are a bunch of clean ups this enables but this commit doesn't
attempt them. We can do that in future commits.
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doesn't seem relevant anymore given that LLVM 3.4 is the minimum version
KLEE supports. Also do minor clean up. This was spotted by @andreamattavelli.
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This is useful on systems like NixOS, where python3 is not in
/usr/bin/python3 as well as for people using alternative ways to
install python such as virtualenv/pyenv.
Some scripts where already using '/usr/bin/env'. With this pull request
it gets more consistent. For background information see also:
https://github.com/systemd/systemd/pull/5816
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There is a test that thinks this should hold:
((&gInt >> 8) << 8) != ((&gInt << 8) >> 8)
For example, if the address is 0x00123400, this means:
0x00123400 != 0x00123400
which is obviously not true. Kill the bogus assumption as it causes
occasional failures in the tests. This is done by ORing the address with
1 so that we can have:
0x00123400 != 0x00123401
Convert also the respective truncated 32bit pointers to 64bit.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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This is based off intial work by @jirislaby in #481. However it
has been substantially modified.
Notably it includes a separate build sytem to build the runtimes which
is inspired by the old build system. The reason for doing this is
because CMake is not well suited for building the runtime:
* CMake is configured to use the host compiler, not the bitcode
compiler. These are not the same thing.
* Building the runtime using `add_custom_command()` is flawed
because we can't automatically get transitive depencies (i.e.
header file dependencies) unless the CMake generator is makefiles.
(See `IMPLICIT_DEPENDS` of `add_custom_command()` in CMake).
So for now we have a very simple build system for building the runtimes.
In the future we can replace this with something more sophisticated if
we need it.
Support for all features of the old build system are implemented apart
from recording the git revision and showing it in the output of
`klee --help`.
Another notable change is the CMake build system works much better with
LLVM installs which don't ship with testing tools. The build system
will download the sources for `FileCheck` and `not` tools if the
corresponding binaries aren't available and will build them. However
`lit` (availabe via `pip install lit`) and GTest must already be
installed.
Apart from better support for testing a significant advantage of the
new CMake build system compared to the existing "Autoconf/Makefile"
build system is that it is **not** coupled to LLVM's build system
(unlike the existing build system). This means that LLVM's
autoconf/Makefiles don't need to be installed somewhere on the system.
Currently all tests pass.
Support has been implemented in TravisCI and the Dockerfile for
building with CMake.
The existing "Autoconf/Makefile" build system has been left intact
and so both build systems can coexist for a short while. We should
remove the old build system as soon as possible though because it
creates an unnecessary maintance burden.
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Changed _testingUtils to use stdint.h
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The difference between a 64bit pointer truncated to 32 bits and the
original 64bit pointer would never be 0 if any of the high 32bits in
the pointer were test. If lli and klee had a different value for the
top 32bits of the address this test would be marked as failing.
Due to the 64bit printing buf in _testingUtils this was not exposed before.
The fix clears the top 32bits of the difference.
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64bit numbers)
Fixing this bug will expose a failing test case for Concrete/ConstantExpr.ll
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This is for use with llvm-lit --param=klee_opts=...
Fixes lit.cfg to not have an extranous space behind the klee command.
Augments ConcreteTest to accept and pass arguments to klee.
Augments all the ConcreteTest cases to wrap %klee in quotes.
Without wrapping %klee the extra arguments will be seens as arguments
to ConcreteTest.py resulting in an unknown argument error.
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work)
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- LLVM changed the exception handling semantics a lot, and we can't write
compatible tests across the versions. Unfortunately I am afraid this probably
also means KLEE's exception handling semantics are broken for LLVM 3.4+, but
our C++ support is spotty at best. These tests should probably be replaced
with ones in a source language that supports exceptions if and when someone
wants to make that work.
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which the LLVM JIT can't handle.
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Fixes #96.
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function anymore.
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in this directory. I don't know why these tests are here, they
weren't executed before by DejaGNU.
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a global has an undef fill of holes inside structures."
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@177285 91177308-0d34-0410-b5e6-96231b3b80d8
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- Lots more tweaks, documentation, and web page content is needed,
but this should compile & work on OS X & Linux.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8
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