RegionPass:createPrinterPass

[llvmbot]

Bugzilla Link	10083
Resolution	FIXED
Resolved on	Jan 18, 2016 17:01
Version	unspecified
OS	Linux
Reporter	LLVM Bugzilla Contributor

Extended Description

I'm running Ubuntu 10.04. I installed the latest versions of llvm and polly from svn source (llvm: #​132548 polly: #​132550).

When I load LLVMPolly.so from opt I invariably get the message:
Error opening '/usr/local/lib/LLVMPolly.so': /usr/local/lib/LLVMPolly.so: undefined symbol: _ZNK4llvm10RegionPass17createPrinterPassERNS_11raw_ostreamERKSs

There is mention of the problem at:
http://legup.eecg.utoronto.ca/wiki/doku.php?id=andrew_s_log

but the solution isn't clear.

[llvmbot]

assigned to @tobiasgrosser

[tobiasgrosser]

Hi,

I have seen this error message before, but did not yet figure out the actual reason. I believe it is because of some rtti information is included in opt, but not in LLVMPolly.so or the other way around. We definitely should investigate the actual reason.

To get some more information:

Do you use a fresh LLVM svn checkout? I just installed Polly again from scratch
following the instructions on the webpage[1]. I used the cmake build. Running 'make polly-test' afterwords works flawless here on Ubuntu 10.10.

What build type did you use autoconf or cmake? Can you send the config.log respectively your CMakeCache file?

Cheers
Tobi

[1] http://polly.grosser.es/get_started.html#prerequisites

[llvmbot]

CMakeCache with RegionPass problem

[llvmbot]

I rebuilt the system with cmake with the same problem. make polly-test fails as well presumably for this reason

NA

Created an attachment (id=6692) [details]
CMakeCache with RegionPass problem

Hi,

I have seen this error message before, but did not yet figure out the actual
reason. I believe it is because of some rtti information is included in opt,
but not in LLVMPolly.so or the other way around. We definitely should
investigate the actual reason.

To get some more information:

Do you use a fresh LLVM svn checkout? I just installed Polly again from scratch
following the instructions on the webpage[1]. I used the cmake build. Running
'make polly-test' afterwords works flawless here on Ubuntu 10.10.

What build type did you use autoconf or cmake? Can you send the config.log
respectively your CMakeCache file?

Cheers
Tobi

[1] http://polly.grosser.es/get_started.html#prerequisites

[llvmbot]

never mind, it works with CMake, the problem is with autoconf.

NA

[llvmbot]

never mind, it works with CMake, the problem is with autoconf.

NA

So does this mean 'make polly-test' works with cmake? Why did you believe the cmake build does not work? Could it be that it only fails in some special cases?

I would love to understand the problem in the autoconf build. I just did myself a clean autoconf build and everything works as expected.

Did you follow the installation instructions on the Polly website[1]. Did you start from scratch? Did you use a clean build?

Can you attach the config.log and the tools/polly/config.log files? Which output do you get if you run:

readelf tools/polly/Debug+Asserts/lib/LLVMPolly.so -a -W
| grep _ZNK4llvm10RegionPass17createPrinterPassERNS_11raw_ostreamERKSs

and

readelf Debug+Asserts/bin/opt -a -W
| grep _ZNK4llvm10RegionPass17createPrinterPassERNS_11raw_ostreamERKSs

Thanks for your help
Tobi

[1] http://polly.grosser.es/get_started.html

[tobiasgrosser]

never mind, it works with CMake, the problem is with autoconf.

NA

I looked a little bit more into it and believe this is because we compile LLVM without rtti, but Polly still with rtti enabled. What compiler are you using to compile Polly? clang or gcc? Can you try to compile with CXXFLAGS set to
"-fno-exceptions -fno-rtti"?

In the meantime I will work on a fix.

Cheers
Tobi

[tobiasgrosser]

Hi,

I just committed some fix to Polly:

Author: grosser
Date: Thu Jun 30 14:50:04 2011
New Revision: 134180

URL: http://llvm.org/viewvc/llvm-project?rev=134180&view=rev
Log:
Buildsystem: Add -no-rtti

Build Polly without run time type info (rtti), as otherwise Polly cannot be
loaded into a LLVM that is built without rtti.

Please reopen if you can still reproduce this bug.

Tobi

[tlattner]

Move to Polly Product.