Displaying 2 results from an estimated 2 matches for "func_cos_fails".
2019 Mar 26
2
ORC JIT fails with standard math librrary
...with the ORC JIT when they
contain a call to the standard math library. Attached is a minimal exploit.
The program uses the KaleidoscopeJIT.h that ships with LLVM 8 (except
that I had to expose the Datalayout). It reads from the filesystem an IR
file (filename "func_works.ll" or "func_cos_fails.ll) and asks the ORC
JIT first for the symbol "func_ir" and then for the address.
In case the file "func_works.ll" was read the program succeeds with:
symbol found!
address found!
In case the file "func_cos_fails.ll" was read the program fails with:
symbol found!...
2019 Mar 22
2
MCJIT, can't use with math functions
Hi,
for my application (uses Builder and MCJIT) I am making the transition
LLVM 6.0 -> 8.0.
It runs fine for self-contained functions, but whenever a jit-ed
function contains calls to the math library (e.g. @cosf) it seems to
have problems getting the address after successfully finding the symbol:
Failure value returned from cantFail wrapped call
UNREACHABLE executed at