[Bug target/51681] New: [4.7 Regression]: ICE in gcc.dg/torture/vshuf-v2si.c on ia64

["ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51681

             Bug #: 51681
           Summary: [4.7 Regression]: ICE in gcc.dg/torture/vshuf-v2si.c
                    on ia64
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ubizjak@gmail.com
            Target: ia64


Also crashes in crosscompiler:


~/gcc-build-xxx/gcc/cc1 -O2 -quiet vshuf-v2si.c 
In file included from vshuf-v2si.c:17:0:
vshuf-main.inc: In function âtest_12â:
vshuf-main.inc:28:1: internal compiler error: in expand_vec_perm_shrp, at
config/ia64/ia64.c:11107
Please submit a full bug report,
[...]

Breakpoint 2, internal_error (gmsgid=0xd8d205 "in %s, at %s:%d") at
../../gcc-svn/trunk/gcc/diagnostic.c:839
839     {
(gdb) bt
#0  internal_error (gmsgid=0xd8d205 "in %s, at %s:%d") at
../../gcc-svn/trunk/gcc/diagnostic.c:839
#1  0x0000000000bd4f64 in fancy_abort (file=<optimized out>, line=11107,
function=0xce6410 "expand_vec_perm_shrp")
    at ../../gcc-svn/trunk/gcc/diagnostic.c:899
#2  0x0000000000a71885 in expand_vec_perm_shrp (d=0x7fffffffd100) at
../../gcc-svn/trunk/gcc/config/ia64/ia64.c:11107
#3  expand_vec_perm_1 (d=0x7fffffffd100) at
../../gcc-svn/trunk/gcc/config/ia64/ia64.c:11164
#4  0x0000000000a718bd in ia64_expand_vec_perm_const_1 (d=0x7fffffffd100) at
../../gcc-svn/trunk/gcc/config/ia64/ia64.c:11390
#5  0x0000000000a7af58 in ia64_expand_vec_perm_const (operands=<optimized out>)
at ../../gcc-svn/trunk/gcc/config/ia64/ia64.c:11467
#6  0x0000000000a9af44 in gen_vec_perm_constv2si (operand0=0x7ffff11ff320,
operand1=0x7ffff11ff0e0, operand2=0x7ffff11ff340, 
    operand3=0x7ffff1546d80) at
../../gcc-svn/trunk/gcc/config/ia64/vect.md:1601
#7  0x00000000007a1119 in maybe_expand_insn (icode=<optimized out>,
nops=<optimized out>, ops=<optimized out>)
    at ../../gcc-svn/trunk/gcc/optabs.c:8301
#8  0x00000000007a15fa in expand_vec_perm_1 (icode=CODE_FOR_vec_perm_constv2si,
target=<optimized out>, v0=0x7ffff11ff0e0, v1=0x7ffff11fa9c0, 
    sel=<optimized out>) at ../../gcc-svn/trunk/gcc/optabs.c:6874
#9  0x00000000007a8052 in expand_vec_perm (mode=V2SImode, v0=0x7ffff11ff0e0,
v1=0x7ffff11fa9c0, sel=0x7ffff1546d80, target=0x7ffff11fa978)
    at ../../gcc-svn/trunk/gcc/optabs.c:6915

(gdb) frame 2
#2  0x0000000000a71885 in expand_vec_perm_shrp (d=0x7fffffffd100) at
../../gcc-svn/trunk/gcc/config/ia64/ia64.c:11107
11107     gcc_assert (IN_RANGE (shift, 1, 63));
(gdb) p shift
$1 = 96

(gdb) p d->perm[0]
$2 = 3 '\003'
(gdb) p debug_rtx (d->op0)
(reg:V2SI 340 [ a.22 ])
$3 = void
(gdb) p debug_rtx (d->op1)
(reg:V2SI 358)
$4 = void

Probably some adjustment to shift is missing when selecting second operand.