[Bug target/63165] New: [5 Regression] r214816 breaks Java build and 435.gromacs

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63165

            Bug ID: 63165
           Summary: [5 Regression] r214816 breaks Java build and
                    435.gromacs
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: wschmidt at gcc dot gnu.org
                CC: bergner at gcc dot gnu.org, pthaugen at gcc dot gnu.org,
                    segher at gcc dot gnu.org
              Host: powerpc64le-unknown-linux-gnu
            Target: powerpc64le-unknown-linux-gnu
             Build: powerpc64le-unknown-linux-gnu

The powerpc64le regression tester fails to build gcc when the java language is
included, starting with revision 214816.  The SPEC tester also fails to build
435.gromacs starting with the same revision.  In both cases the symptoms are
the same:

/home/wschmidt/gcc/gcc-mainline-test/libjava/classpath/gnu/java/awt/font/opentype/truetype/GlyphLoader.java:
In class 'gnu.java.awt.font.opentype.truetype.GlyphLoader':
/home/wschmidt/gcc/gcc-mainline-test/libjava/classpath/gnu/java/awt/font/opentype/truetype/GlyphLoader.java:
In method
'gnu.java.awt.font.opentype.truetype.GlyphLoader.loadCompoundGlyph(int,double,java.awt.geom.AffineTransform,boolean,java.nio.ByteBuffer,gnu.java.awt.font.opentype.truetype.Zone,int,int,gnu.java.awt.font.opentype.Hinter)':
In file included from
/home/wschmidt/gcc/gcc-mainline-test/libjava/classpath/gnu/java/awt/font/opentype/truetype/Fixed.java:177:0,
                 from <built-in>:13:
/home/wschmidt/gcc/gcc-mainline-test/libjava/classpath/gnu/java/awt/font/opentype/truetype/GlyphLoader.java:341:0:
internal compiler error: in find_reloads, at reload.c:4087
   }
 ^
0x105c1e8b find_reloads(rtx_insn*, int, int, int, short*)
        /home/wschmidt/gcc/gcc-mainline-test/gcc/reload.c:4087
0x105d4e6f calculate_needs_all_insns
        /home/wschmidt/gcc/gcc-mainline-test/gcc/reload1.c:1515
0x105d4e6f reload(rtx_insn*, int)
        /home/wschmidt/gcc/gcc-mainline-test/gcc/reload1.c:1003
0x1047e887 do_reload
        /home/wschmidt/gcc/gcc-mainline-test/gcc/ira.c:5323
0x1047e887 execute
        /home/wschmidt/gcc/gcc-mainline-test/gcc/ira.c:5470
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [gnu/java/awt/font/opentype/truetype.lo] Error 1
make[3]: *** Waiting for unfinished jobs....

We don't know yet whether this fails on big-endian as well; my guess would be
yes.

I'll work on getting preprocessed source to reproduce the problem.