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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
2019-03-15Created a new module-related option category and moved the options in ↵Cristian Cadar
KModule.cpp in there
2019-03-12Removed unneeded and confusing disable-opt option, reformatted Optimize() ↵Cristian Cadar
function and updated some .ll tests to use --optimize=false instead of --disable-opt
2019-03-11Add support for LLVM 8.0Martin Nowack
2019-03-05workaround for LLVM PR39177Julian Büning
provides a workaround for LLVM bug PR39177, which affects LLVM versions 3.9 - 7.0.0: https://bugs.llvm.org/show_bug.cgi?id=39177 This commit is intended to be reverted once support for LLVM versions <= 7 is dropped from KLEE.
2018-10-26llvm7: handle new header filesJiri Slaby
createLowerSwitchPass moved in llvm commit 49ca55e3813c to Utils.h. createInstructionCombiningPass moved in llvm commitb5b7fce64c1d to InstCombine.h. So add the includes where needed. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-10-26llvm7: WriteBitcodeToFile takes Module &Jiri Slaby
Since llvm commit 06d6207c1c63, WriteBitcodeToFile accepts Module &, not Module *. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-10-26llvm6: handle headers renamingJiri Slaby
Some headers were moved from llvm/Target/ to llvm/CodeGen/. Handle that. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-10-26llvm5: Intrinsic::objectsize has three argumentsJiri Slaby
Modify the IntrinsicCleaner accordingly. We do not do anything with the third argument as we do not handle the first argument in any way. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-10-26llvm5: handle new file_magic's locationJiri Slaby
llvm 5, moved file_magic to BinaryFormat in commit 19ca2b0f9daed883c21730285d7f04424e5f5f88, so adapt to that. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
2018-10-26llvm5: handle getOrInsertFunction terminatorJiri Slaby
llvm 5 does not terminate getOrInsertFunction parameters with NULL, take care of that. Since commit 9d54400bba7eb04bca80fce97fa170452d19eaf1. Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
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