[Bug plugins/83442] FAIL: gcc.dg/plugin/expensive-selftests-1.c -- timeout

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83442

--- Comment #1 from John David Anglin <danglin at gcc dot gnu.org> ---
Program is stuck in a loop which repeatedly calls $$dyncall:

(gdb) bt
#0  $$dyncall () at ../../../gcc/libgcc/config/pa/milli64.S:237
#1  0x0055b82c in try_init_one_plugin (plugin=0xfae140)
    at ../../gcc/gcc/plugin.c:729
#2  init_one_plugin (slot=<optimized out>, info=<optimized out>)
    at ../../gcc/gcc/plugin.c:753
#3  0x00cdf9c8 in htab_traverse_noresize (htab=<optimized out>, 
    callback=@0xf8cdb036: 0xf69cd764 <$$dyncall>, 
    callback@entry=0x55b7a0 <init_one_plugin(void**, void*)>, 
    info=0xd63000 <ipa_write_summaries()::__FUNCTION__+16>, info@entry=0x0)
    at ../../gcc/libiberty/hashtab.c:775
#4  0x0055c370 in initialize_plugins () at ../../gcc/gcc/plugin.c:779
#5  0x000f5e58 in toplev::main (this=this@entry=0xf8d02388, 
    argc=<optimized out>, argc@entry=16441664, argv=<optimized out>, 
    argv@entry=0xffa8e8) at ../../gcc/gcc/toplev.c:2185
#6  0x000f80b4 in main (argc=16441664, argv=0xffa8e8)
    at ../../gcc/gcc/main.c:39
(gdb) step
225             bb,>=,n %r22,30,LREF(1)         ; branch if not plabel address
(gdb) 
231             bv      %r0(%r22)               ; branch to the real target
(gdb) 
237             stw     %r2,-24(%r30)           ; save return address into
frame marker
(gdb) 
225             bb,>=,n %r22,30,LREF(1)         ; branch if not plabel address
(gdb) 
231             bv      %r0(%r22)               ; branch to the real target
(gdb) 
237             stw     %r2,-24(%r30)           ; save return address into
frame marker
(gdb) 
225             bb,>=,n %r22,30,LREF(1)         ; branch if not plabel address
(gdb) 
231             bv      %r0(%r22)               ; branch to the real target
...
231             bv      %r0(%r22)               ; branch to the real target
(gdb) p/x $r22
$1 = 0xf69cd764
(gdb) stepi
237             stw     %r2,-24(%r30)           ; save return address into
frame marker
(gdb) disass 
Dump of assembler code for function $$dyncall:
   0xf69cd764 <+0>:     bb,*>=,n r22,1e,0xf69cd774 <$$dyncall+16>
   0xf69cd768 <+4>:     depwi 0,31,2,r22
   0xf69cd76c <+8>:     ldw 4(r22),r19
   0xf69cd770 <+12>:    ldw 0(r22),r22
   0xf69cd774 <+16>:    bv r0(r22)
=> 0xf69cd778 <+20>:    stw rp,-18(sp)
End of assembler dump.