[Bug target/21441] New: [4.1 regression] CRIS: gcc.c-torture/execute/20040703-1.c compilation, -Os and libstdc++ setup

["hp at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Comparison between
Fri Apr 29 20:34:58 CEST 2005
Fri Apr 29 18:34:58 UTC 2005
 and
Sat Apr 30 23:09:53 CEST 2005
Sat Apr 30 21:09:53 UTC 2005

Tests that now fail, but worked before:

gcc.c-torture/execute/20040703-1.c compilation,  -Os

What's even worse, the same bug (according to the message in the .log) hits the
setup of the libstdc++ testsuite, so it's not run at all.

The message in gcc.log is:
/home/hp/combined/combined/gcc/testsuite/gcc.c-torture/execute/20040703-1.c: In
function 'num_lshift':^M
/home/hp/combined/combined/gcc/testsuite/gcc.c-torture/execute/20040703-1.c:126:
error: insn does not satisfy its constraints:^M
(insn 373 347 372 24 (parallel [^M
            (set (mem/s:SI (plus:SI (reg/f:SI 13 r13 [106])^M
                        (const_int 68 [0x44])) [2 num.overflow+0 S4 A16])^M
                (reg:SI 16 srp [orig:28 num$overflow.63 ] [28]))^M
            (set (reg/f:SI 13 r13 [106])^M
                (plus:SI (reg/f:SI 13 r13 [106])^M
                    (const_int 68 [0x44])))^M
        ]) 25 {*mov_sidesisf_mem} (nil)^M
    (expr_list:REG_UNUSED (reg/f:SI 13 r13 [106])^M
        (nil)))^M
/home/hp/combined/combined/gcc/testsuite/gcc.c-torture/execute/20040703-1.c:126:
internal compiler error: in copyprop_hardreg_for\
ward_1, at regrename.c:1570^M

Smells like a .md bug.

-- 
           Summary: [4.1 regression] CRIS: gcc.c-torture/execute/20040703-
                    1.c compilation,  -Os and libstdc++ setup
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: cris-axis-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21441