similar to: [LLVMdev] bugpoint question

I believe I can use bugpoint to help you folks track down an LLVM bug using the bugpoint mode where it runs the program and looks at its output. However there is a slight complication: to distinguish between correct and incorrect runs I need to run the program under test in our hacked valgrind. After reading all the bugpoint docs I can't figure out how I would do that. What I would like

Hi Eric, > From my perspective Win32 is the windows ABI and mingw and cygwin are their own ABIs No. They are using Windows Platform ABI for almost everything (e.g. calling API, C runtime, etc.). At least mingw does. The differences are exactly in unspecified area (e.g. passing / returning structs by value). The only difference is C++, where mingw / cygwin follows Itanium ABI and MSVC - its

Hello, Bill > It may be my lack of understanding, but it appears that having -- > enable-eh set during compilation of llvm-gcc is causing extra files > to be compiled. Oh, no. They are always compiled. > They do. However, it doesn't seem to stop it from failing during > compilation of unwind-dw2.c for libgcc -- it has > "__builtin_eh_return" in it. During

Hello > What does this information mean? As written in the assertion - C backend does not support arbitrary bitwidth integers. -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

Hello, David > bugpoint now works for remote ARM if you run it directly from the > command line. It doesn't work correctly when invoked from the test > makefile because envvar PWD is being set to /bin/pwd and so causing > GCC::ExecuteProgram to do the wrong thing. I'm not sure what is going > on with that, perhaps something in the makefile hierarchy is setting > PWD to

Hello, Aaron. > /usr/src/llvm-gcc4/gcc/libgcc2.c: In function '__eprintf': > /usr/src/llvm-gcc4/gcc/libgcc2.c:1832: internal compiler error: > Segmentation fault > Please submit a full bug report, > with preprocessed source if appropriate. > See <URL:http://llvm.org/bugs> for instructions. You should: 1. Try to emit bytecode with --emit-llvm compiler switch. 1.1

Chuck, > It is dying trying to store a our working vector into one of the LLVM > vectors created on the stack. Despite the align-16 directive on the > alloca instruction, it is not always aligning to a 16-byte boundary. The stack is not necessary 16 bytes aligned on linux/windows. The vector is really sotred aligned relative to %esp, but %esp value is not good. This is known problem

Hi,all I ran my generated whole-program bitcode file which performs as a bodytrack tool, it can give me the right result but with a stack dump before it exsits Update Error : Model observation failed for time : 1 Error loading observation data terminate called after throwing an instance of 'std::bad_cast' what(): std::bad_cast 0 lli 0x08b713d2 1 lli 0x08b71247

On 8/29/07, Anton Korobeynikov <asl at math.spbu.ru> wrote: > Hello, Bill > > > It may be my lack of understanding, but it appears that having -- > > enable-eh set during compilation of llvm-gcc is causing extra files > > to be compiled. > Oh, no. They are always compiled. > > > They do. However, it doesn't seem to stop it from failing during > >

Hello, Daniel. > glibc < 2.4 don't reliably keep stack at 16 bytes through some calls > (qsort, etc), but otherwise, it stays 16 byte aligned. Interesting, but why in this case stuff like 'force_align_arg_pointer' required? -- With best regards, Anton Korobeynikov. Faculty of Mathematics & Mechanics, Saint Petersburg State University.

> Ah, got it. > Sounds like we might need to introduce CC_X86_Win32_MSVC_ThisCall then?.. No, we should not. It should be properly expanded in frontend. -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

> How can having an MSVC compatible compiler be to the detriment of clang and > llvm? No one is trying to break mingw here, merely add support for something Just to make stuff clear: I just wanted proper naming which will be non-confusing. Right now we have: - isTargetWindows() which really means "msvc-compabile" - isTargetWin32() which means "everything on windows", so

Hello, Ashwin. You wrote Wednesday, May 24, 2006, 11:25:11 AM: AC> "Pass::getClassPassInfo<PassClass>() "Pass class not AC> registered!"" failed: file AC> "/cygdrive/c/llvm/llvm/include/llvm/PassAnalysisSupport.h", line 76 AC> Aborted Same for me. AC> Wihtout the -march specified (using native x86 assembly) it does AC> convert it into

Hello, > If anybody has an idea of how to fix this (other than using another > version of gcc because I am sick of compiling), I would appreciate. I > can offer backtraces or shell access if anybody is interested, just > ask me what you need. This was fixed couple of months ago. Please consider using current svn top of tree, not 2.3 release. -- WBR, Anton Korobeynikov

Hello, David. > After hacking around in the CBE output I managed to compile it with > gcc, only to discover that gcc 4.1.2 has the SAME bug LLVM does with > respect to alignment. Automatic stack realignment was atted to X86 backend ~3 months ago. Everything should work with LLVM. If not - please fill out a PR. AFAIR, automatic stack realignment still does not land into gcc mainline

Hello, Scott. > Checking the assembly from llc, the first alloca call is to allocate > local vars in _main. Is this just the state of the code at 2.0 when > built with vs.net, or is there something that I've managed to > mis-build locally? _alloca is used to probe the stack, if you asks for locals of size more that 4k. This is pretty ugly, but the names of this functions differs

How can a frontend tell LLVM to put a function argument on stack/register/etc? On Thu, Oct 4, 2012 at 5:08 PM, Anton Korobeynikov <asl at math.spbu.ru> wrote: >> Ah, got it. >> Sounds like we might need to introduce CC_X86_Win32_MSVC_ThisCall then?.. > No, we should not. It should be properly expanded in frontend. > > -- > With best regards, Anton Korobeynikov >

2008/9/21 Anton Korobeynikov <asl at math.spbu.ru>: > Hello, > >> If anybody has an idea of how to fix this (other than using another >> version of gcc because I am sick of compiling), I would appreciate. I >> can offer backtraces or shell access if anybody is interested, just >> ask me what you need. > This was fixed couple of months ago. Please consider

I tried to ask for 32 and that didn't seem to help. MallocInst also seemed to ignore the 16 byte directive. For now, I'm just issuing all my loads as unaligned and that's working ok. Thanks, Chuck. -----Original Message----- From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Evan Cheng Sent: Monday, October 01, 2007 10:35 AM To: asl at

Hello, Bill. > Has anyone gotten the latest/greatest sources from the LLVM-GCC open > source server lately? No. It's still at rev 319 (as of 29.04). -- With best regards, Anton Korobeynikov. Faculty of Mathematics & Mechanics, Saint Petersburg State University.