public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c++/50947] New: ICE on armhf with llvm-2.x
@ 2011-11-01 20:12 konstantinos.margaritis at linaro dot org
  2011-11-01 20:56 ` [Bug target/50947] " rearnsha at gcc dot gnu.org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: konstantinos.margaritis at linaro dot org @ 2011-11-01 20:12 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50947

             Bug #: 50947
           Summary: ICE on armhf with llvm-2.x
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: konstantinos.margaritis@linaro.org


Created attachment 25678
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25678
minimal testcase produced using delta tool from
lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp in llvm-2.x

llvm-2.x fail to build from source on Debian armhf, all due to a g++ ICE:

http://buildd.debian-ports.org/status/fetch.php?pkg=llvm-2.7&arch=armhf&ver=2.7-6.2&stamp=1311446819
http://buildd.debian-ports.org/status/fetch.php?pkg=llvm-2.8&arch=armhf&ver=2.8-7&stamp=1309205992
http://buildd.debian-ports.org/status/fetch.php?pkg=llvm-2.9&arch=armhf&ver=2.9%2Bdfsg-3&stamp=1309210849

Originally the bug appeared with g++-4.6.1-10 but it still fails with
g++-4.6.2-3 (latest Debian/unstable).

...
llvm[4]: Compiling ExternalFunctions.cpp for Release build
if arm-linux-gnueabihf-g++
-I/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/include
-I/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter
-I/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/include
-I/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/lib/ExecutionEngine/Interpreter
 -DNDEBUG -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS
-g -O2 -fomit-frame-pointer -fno-exceptions -fPIC -Woverloaded-virtual
-Wcast-qual    -pedantic -Wno-long-long -Wall -W -Wno-unused-parameter
-Wwrite-strings  -c -MMD -MP -MF
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.d.tmp"
-MT
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.o"
-MT
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunc
 tions.d"
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
-o
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.o
; \
            then /bin/mv -f
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.d.tmp"
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.d";
else /bin/rm
"/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/build-llvm/lib/ExecutionEngine/Interpreter/Release/ExternalFunctions.d.tmp";
exit 1; fi
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp:
In member function 'llvm::GenericValue
llvm::Interpreter::callExternalFunction(llvm::Function*, const
std::vector<llvm::GenericValue>&)':
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp:293:1:
error: insn does not satisfy its constraints:
(insn 3133 3132 3135 306 (set (subreg:SI (reg:DI 1122) 0)
        (ior:SI (ashift:SI (reg:SI 1125)
                (const_int -24 [0xffffffffffffffe8]))
            (subreg:SI (reg:DI 1122) 0)))
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/include/llvm/ADT/APInt.h:139
251 {*arith_shiftsi}
     (nil))
/build/buildd-llvm-2.8_2.8-7-armhf-yLsjcC/llvm-2.8-2.8/lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp:293:1:
internal compiler error: in extract_constrain_insn_cached, at
recog.c:2024
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.

I used the delta package to produce a minimal testcase for the ICE
which I attach.
You can reproduce the ICE with:

g++ -O2 -fpermissive -w llvm_ExternalFunctions-min.i

The bug has also been filed on the Debian BTS:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642127

Regards

Konstantinos


^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-12-03 15:59 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-11-01 20:12 [Bug c++/50947] New: ICE on armhf with llvm-2.x konstantinos.margaritis at linaro dot org
2011-11-01 20:56 ` [Bug target/50947] " rearnsha at gcc dot gnu.org
2011-11-01 21:18 ` konstantinos.margaritis at linaro dot org
2011-12-03 15:59 ` doko at gcc dot gnu.org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).