[Bug middle-end/20017] New: internal compiler error: in rtl_verify_flow_info, at cfgrtl.c:2212

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

Compiling glibc with current GCC CVS I get the following ICE: 
 
/opt/gcc/4.0-devel/libexec/gcc/x86_64-suse-linux-gnu/4.0.0/cc1 -fpreprocessed 
iso-2022-cn-ext.i -quiet -dumpbase iso-2022-cn-ext.c -mtune=k8 
-auxbase-strip /builds/glibc/4.0/iconvdata/iso-2022-cn-ext.os -g -O2 -Wall 
-Winline -Wstrict-prototypes -Wwrite-strings -std=gnu99 -version -fPIC -o 
iso-2022-cn-ext.s 
GNU C version 4.0.0 20050216 (experimental) (x86_64-suse-linux-gnu) 
        compiled by GNU C version 4.0.0 20050216 (experimental). 
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 
iso-2022-cn-ext.i: In function ?to_iso2022cn_ext_loop?: 
iso-2022-cn-ext.i:10970: warning: pointer targets in passing argument 2 of 
?ucs4_to_gb2312? differ in signedness 
iso-2022-cn-ext.i:10970: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l1? differ in signedness 
iso-2022-cn-ext.i:10970: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l2? differ in signedness 
iso-2022-cn-ext.i:10970: warning: pointer targets in passing argument 2 of 
?ucs4_to_gb2312? differ in signedness 
iso-2022-cn-ext.i:10970: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l1? differ in signedness 
iso-2022-cn-ext.i: In function ?to_iso2022cn_ext_loop_single?: 
iso-2022-cn-ext.i:11042: warning: pointer targets in passing argument 2 of 
?ucs4_to_gb2312? differ in signedness 
iso-2022-cn-ext.i:11042: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l1? differ in signedness 
iso-2022-cn-ext.i:11042: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l2? differ in signedness 
iso-2022-cn-ext.i:11042: warning: pointer targets in passing argument 2 of 
?ucs4_to_gb2312? differ in signedness 
iso-2022-cn-ext.i:11042: warning: pointer targets in passing argument 2 of 
?ucs4_to_cns11643l1? differ in signedness 
iso-2022-cn-ext.i: In function ?gconv?: 
iso-2022-cn-ext.i:11485: error: verify_flow_info: Incorrect fallthru 1740->1741 
iso-2022-cn-ext.i:11485: error: wrong insn in the fallthru edge 
(barrier 11408 11388 11417) 
iso-2022-cn-ext.i:11485: internal compiler error: in rtl_verify_flow_info, at 
cfgrtl.c:2212 
Please submit a full bug report, 
with preprocessed source if appropriate. 
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           Summary: internal compiler error: in rtl_verify_flow_info, at
                    cfgrtl.c:2212
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aj at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20017