[Bug tree-optimization/42341] New: ICE in insert_value_copy_on_edge, at tree-outof-ssa.c:228

ubizjak at gmail dot com gcc-bugzilla@gcc.gnu.org
Wed Dec 9 11:19:00 GMT 2009


Attached object file crashes with lto compilation on alphaev68 cross:

~/gcc-build-alpha/gcc/lto1 -O0 c_lto_20090116_0.o
Performing interprocedural optimizations
 <whole-program> <inline>Assembling functions:
 foo
In file included from :0:0:
/home/uros/gcc-svn/trunk/gcc/testsuite/gcc.dg/lto/20090116_0.c: In function
‘foo’:
/home/uros/gcc-svn/trunk/gcc/testsuite/gcc.dg/lto/20090116_0.c:5:5: internal
compiler error: in insert_value_copy_on_edge, at tree-outof-ssa.c:228
Please submit a full bug report,
...

Breakpoint 1, fancy_abort (
    file=0xa6fa28 "../../gcc-svn/trunk/gcc/tree-outof-ssa.c", line=228, 
    function=0xa6ff50 "insert_value_copy_on_edge")
    at ../../gcc-svn/trunk/gcc/diagnostic.c:727
727     {
(gdb) bt
#0  fancy_abort (file=0xa6fa28 "../../gcc-svn/trunk/gcc/tree-outof-ssa.c", 
    line=228, function=0xa6ff50 "insert_value_copy_on_edge")
    at ../../gcc-svn/trunk/gcc/diagnostic.c:727
#1  0x000000000076b1a5 in insert_value_copy_on_edge (e=0x2b72551e7040, dest=1, 
    src=0x2b7255135c58, locus=147)
    at ../../gcc-svn/trunk/gcc/tree-outof-ssa.c:228
#2  0x000000000076c835 in eliminate_phi (e=0x2b72551e7040, g=0x102c9f0)
    at ../../gcc-svn/trunk/gcc/tree-outof-ssa.c:678
#3  0x000000000076cf94 in expand_phi_nodes (sa=0xd8b820)
    at ../../gcc-svn/trunk/gcc/tree-outof-ssa.c:840
#4  0x00000000004bd201 in gimple_expand_cfg ()
    at ../../gcc-svn/trunk/gcc/cfgexpand.c:3585
#5  0x0000000000677919 in execute_one_pass (pass=0xd4d5e0)
    at ../../gcc-svn/trunk/gcc/passes.c:1543

(gdb) up
#1  0x000000000076b1a5 in insert_value_copy_on_edge (e=0x2b72551e7040, dest=1, 
    src=0x2b7255135c58, locus=147)
    at ../../gcc-svn/trunk/gcc/tree-outof-ssa.c:228
228       gcc_assert (dest_mode == GET_MODE (SA.partition_to_pseudo[dest]));

(gdb) p dest_mode
$1 = DImode
(gdb) p SA.partition_to_pseudo[dest]
$2 = (rtx) 0x2b72551df240
(gdb) p debug_rtx (SA.partition_to_pseudo[dest])
(mem/c/i:SI (plus:DI (reg/f:DI 65 virtual-stack-vars)
        (const_int 4 [0x4])) [0 i+0 S4 A32])
$3 = void

This is reproductable with a cross to alpha-linux-elf.


-- 
           Summary: ICE in insert_value_copy_on_edge, at tree-outof-
                    ssa.c:228
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ubizjak at gmail dot com
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42341



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