[Bug c/50948] New: ICE on armhf with neon code

[konstantinos.margaritis at linaro dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50948

             Bug #: 50948
           Summary: ICE on armhf with neon code
    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
              Host: arm-linux-gnueabihf
            Target: arm-linux-gnueabihf
             Build: arm-linux-gnueabihf


Created attachment 25679
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25679
minimal testcase produced using delta tool from source (propriatery driver
including NEON code)

When building neon code on armhf -which I cannot attach to its full,
due to licensing reason, unfortunately- I get an ICE. Using delta I
was able to get a minimal testcase that produces the exact ICE. The
testcase is attached. Here is the message and the cmd line used:

$ gcc -O -mfpu=neon matrix-min.i
matrix-min.i: In function ‘matrixTranspose’:
matrix-min.i:10:29: internal compiler error: in immed_double_const, at
emit-rtl.c:550
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.
Preprocessed source stored into /tmp/cc3zlt4j.out file, please attach
this to your bugreport.

In fact, the same ICE I get on oneiric gcc with the same testcase.

The bug has also been filed on Debian BTS:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=646160

Konstantinos