search for: llvmarmcodegenfailures200904

...e why the ARM backend don't pass the whole testsuite: I have run the failing tests manually on my arm board and can now categorize most of the thirteen unexpected CodeGen failures in four categories: 1. llvm don't lower MVT::i64 properly on arm errors http://labb.zafena.se/shark-testing/llvmARMCodeGenFailures200904/i64armLoweringRelatedErrors/ example: root at overo:/home/xerxes/llvm-test/fail/CodeGen/notnativelysupported# llvm-as < 2008-02-04-ExtractSubvector.ll | llc llc: /usr/src/openembedded/overo/tmp/work/armv7a-angstrom-linux-gnueabi/llvm2.6-2.6-r0/llvm-2.6/include/llvm/Target/TargetLowering.h:158:...

LLVM ARM v6 backend is in fairly good shape. Even the JIT passes nearly the entire llvm test suite. There are some known missing bits: 1. Exception handling 2. Atomic Not sure: 3. Debugging support (should be trivial to hook up if it's not done) Also the thumb backend is not awesome. Its performance is not great. Evan On Apr 1, 2009, at 6:34 AM, Robert Schuster wrote: > Hi, > the

Hi, the ARM backend lacks some stuff like support for atomic intrinsics. I learned the hard way (crash). Lately I was told that the ARM backend of LLVM is generally in its early stages of development. I would like to know more about this. Which stuff is missing, known to be unstable and the like. Thanks in advance for taking the time. Regards Robert -------------- next part -------------- A

Hi Xerxes, > 4. softfloat related errors > http://labb.zafena.se/shark-testing/llvmARMCodeGenFailures200904/softenfloat_Do_not_know_how_to_soften_the_result_of_this_operator/ > example: > > root at overo:/home/xerxes/llvm-test/fail/CodeGen/softenfloat# llvm-as < 2007-11-19-VectorSplitting.ll | llc > SoftenFloatResult #0: 0x614e00: f32 = undef > llc: /usr/src/openembedded/overo/tmp/wo...

Duncan Sands skrev: > Hi Xerxes, > > >> 4. softfloat related errors >> http://labb.zafena.se/shark-testing/llvmARMCodeGenFailures200904/softenfloat_Do_not_know_how_to_soften_the_result_of_this_operator/ >> example: >> >> root at overo:/home/xerxes/llvm-test/fail/CodeGen/softenfloat# llvm-as < 2007-11-19-VectorSplitting.ll | llc >> SoftenFloatResult #0: 0x614e00: f32 = undef >> llc: /usr/src/openem...