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2022-03-17remove obsolete KLEE_LLVM legacy definesJulian Büning
2022-03-17remove LLVM < 6 from sourcesFrank Busse
2021-12-20llvm13: CreateGEP no longer accepts nullptrLukas Zaoral
See: https://reviews.llvm.org/D105653
2021-12-20llvm13: CreateLoad API with implicit types has been deprecatedLukas Zaoral
See: https://github.com/llvm/llvm-project/commit/6312c53870897435b38881795460ad9f34bf9819
2021-10-27Module/RaiseAsm: Support i686 target as wellLukas Zaoral
Add i686 to the list of supporterd targets by this transformation pass.
2021-10-27Module/RaiseAsm: Fix crash when host and bitcode target triples differLukas Zaoral
RaiseAsm always created a target machine for the host target and not for the bitcode one. Therefore, KLEE could crash on i686 bitcode as x86_64 target machine cannot be used to raise i686 assembly. Fixes: LLVM ERROR: 64-bit code requested on a subtarget that doesn't support it!
2021-09-10llvm12: Implement llvm.abs intrinsicLukas Zaoral
The vector variants are not implemented at the moment. See: https://reviews.llvm.org/D84125 Co-authored-by: Lukas Zaoral <lzaoral@redhat.com> Co-authored-by: Martin Nowack <m.nowack@imperial.ac.uk>
2021-09-10llvm11: Handle llvm.roundeven instrinsicLukas Zaoral
See: https://reviews.llvm.org/D75670
2021-09-10llvm12: Implement llvm.{s,u}{max,min} intrinsicsLukas Zaoral
The vector variants are not implemented at the moment. See: https://reviews.llvm.org/D84125 Co-authored-by: Lukas Zaoral <lzaoral@redhat.com> Co-authored-by: Martin Nowack <m.nowack@imperial.ac.uk>
2021-02-16add ifdefs for C++ exception handlingJulian Büning
restoring old behavior without EH support
2020-12-04llvm11: IPConstantPropagationPass has been removedLukas Zaoral
See: https://reviews.llvm.org/D84447
2020-12-04llvm11: Use getCalledOperand instead of getCalledValueLukas Zaoral
CallBase::getCalledValue has been deprecated by getCalledOperand since LLVM 8 and has been removed in LLVM 11 See: https://reviews.llvm.org/D78882
2020-12-04llvm11: Make conversions from StringRef to std::string explicitLukas Zaoral
The same applies to SmallString. See: llvm/llvm-project@777180a#diff-497ba4c0c527a125d382b51a34f32542
2020-11-12Casting.h: isa_and_nonnull<>Julian Büning
2020-10-12Implemented support for C++ ExceptionsFelix Rath
We implement the Itanium ABI unwinding base-API, and leave the C++-specific parts to libcxxabi. Co-authored-by: Lukas Wölfer <lukas.woelfer@rwth-aachen.de>
2020-10-09Replace `NULL` with explicit `nullptr`Martin Nowack
2020-10-09Explicitly track global variables in getDirectCallTargetMartin Nowack
Global variables can't be a direct call target. Their values are read and treated as indirect call targets.
2020-09-26Replace llvm::CallSite with llvm::CallBase on LLVM 8+Lukas Zaoral
This is in preparation for LLVM 11 as the llvm:CallSite class has been removed.
2020-09-02More robust handling of unknown intrinsicsAlastair Reid
- If an unknown intrinsic appears in the bitcode file, it is reported but execution can proceed. - If an unknown intrinsic is encountered during execution of some path, - the intrinsic is reported - this path is treated as an error - execution of other paths can proceed To be more precise, there is a list of "known unknown intrinsics". Intrinsics not on this list will prevent execution.
2020-07-29remove holes in Instruction-/FunctionInfoTable, add documentationFrank Busse
2020-06-29Implement fshr/fshl intrinsicsAlastair Reid
Changes: - IntrinsicCleaner accepts fshr/fshl as accepted intrinsics - Executor::executeCall converts fshr/fshl to urem/zext/concat/shift/extract - Klee/main suppresses warnings about externals that are LLVM reserved (i.e., begin with "llvm.") - New test exercises 32 and 7 bit versions including oversize shift values Test values are based on LLVM's test for fshl/fshr - Changes that depend on existence of fshr/fshl are guarded by #if LLVM_VERSION_CODE >= LLVM_VERSION(7, 0) or ; REQUIRES: geq-llvm-7.0
2020-06-06[Module] Disable lifting for inline asm resembling memory fences with return ↵Martin Nowack
values Inline asm used for memory barriers might use their operands and propagate them as return value. This is currently not supported. Tighten check for this condition and do not to lift those inline asm instructions. Fixes #1252
2020-04-30Moved header files that were placed directly in include/klee/ into ↵Cristian Cadar
appropriate existing directories and a new directory Statistics; a few missing renames.
2020-04-30Created include/klee/Core directory and moved appropriate files direc\Cristian Cadar
tly in lib/Core
2020-04-30Removed the Internal directory from include/kleeCristian Cadar
2020-03-18Added another `ScalarizerLegacyPass` run to remove vectorized code ↵Frederic Kehrein
introduced during the optimization step
2020-01-18Fix handling of debug information for functionsMartin Nowack
Tracking function locations separately correctly without prefixing it with a directory.
2019-11-15Implement @llvm.is.constant() intrinsic handling and add a test for it.Gleb Popov
2019-11-07Handle llvm.objectsize explicitlyMartin Nowack
llvm.objectsize is used in several optimisation during compile time. Lowering these intrinsics took a conservative approach returning always the value for unknown. Instead, lower to the object's real size, if possible. Otherwise, a conservative value is used. Since LLVM 4.0, the function `llvm::lowerObjectSizeCall()` does exactly this. Use this function or preserve the old behaviour for older LLVM versions.
2019-10-31LLVM 9.0: fourth parameter for @llvm.objectsize()Julian Büning
2019-10-31support compilation against LLVM 9.0Julian Büning
2019-09-20Add saturated arithmetic intrinsicsMateusz Naściszewski
2019-08-14Update basic block iterator after deleting instruction; add test caseMartin Nowack
2019-08-14fixed bug in IntrinsicCleaner trap cleanerMichael Bryman
2019-06-04make endif guard naming consistentJulian Büning
2019-06-04make include guard naming consistentJulian Büning
2019-05-30implement FunctionAliasPassJulian Büning
2019-05-28Implement handling of the llvm.fabs intrinsicFelix Rath
2019-04-02Add FreeBSD OS triple in RaiseAsmGleb Popov
2019-03-21drop support for LLVM <= 3.7Julian Büning
2019-03-21remove copy of ScalarizerPass for LLVM 3.4Julian Büning
2019-03-21remove obsolete LegacyLLVMPassManagerTyJulian Büning
2019-03-21remove obsolete macro KLEE_LLVM_GEP_TYPEJulian Büning
2019-03-19Add support to assign debug instructions to optimised codeMartin Nowack
2019-03-19Use debugging information from newer LLVM versionsMartin Nowack
2019-03-19separate between instructions and functionsMartin Nowack
2019-03-19Refactor InstructionInfoTableMartin Nowack
Better debug information
2019-03-18Disable optimisation for functions that contain KLEE callsMartin Nowack
Compilers are allowed to hoist function calls and do GVE. This is currently done even without `--optimization` enabled. This is unfortunate in the context of KLEE function calls that might depend on specific code position without direct control flow dependencies. In such cases, function calls can be hoisted. To circumvent this, disallow to optimise functions that contain such calls by default. This might reduce optimisation for some functions containing such function calls but still allows it for all others. This patch adds an additional pass, that detects all functions starting with a prefix `klee_` and disable optimisations for functions containing such calls. This is enabled by default but can be disabled by `--klee-call-optimisation=false`.
2019-03-17run VerifierPass after optimization and instrumentationJulian Büning
2019-03-15Moved the options in Optimize.cpp to the module categoryCristian Cadar
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