[Bug debug/30645] New: Failure to build 20001226-1.c with -O2 -g

[fxcoudert at gcc dot gnu dot org]

$ i386-pc-mingw32-gcc 20001226-1.c -O2 -g -c
/cygdrive/c/DOCUME~1/coudert/LOCALS~1/Temp/ccmKZvVp.s: Assembler messages:
/cygdrive/c/DOCUME~1/coudert/LOCALS~1/Temp/ccmKZvVp.s:0: Warning: end of file
in  string; '"' inserted
/cygdrive/c/DOCUME~1/coudert/LOCALS~1/Temp/ccmKZvVp.s:20: Warning: .stabs:
missing comma

Indeed, the assembly file is truncated:

$ cat 20001226-1.s 
        .file   "20001226-1.c"
        .stabs  "/home/coudert/cross-mingw32/usr/",100,0,2,Ltext0
        .stabs  "20001226-1.c",100,0,2,Ltext0
        .text
Ltext0:
        .stabs  "gcc2_compiled.",60,0,0,0
        .stabs  "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0
        .stabs  "char:t(0,2)=r(0,2);0;127;",128,0,0,0
        .stabs  "long int:t(0,3)=r(0,3);-2147483648;2147483647;",128,0,0,0
        .stabs  "unsigned int:t(0,4)=r(0,4);0;037777777777;",128,0,0,0
        .stabs  "long unsigned int:t(0,5)=r(0,5);0;037777777777;",128,0,0,0
        .stabs  "long long
int:t(0,6)=@s64;r(0,6);01000000000000000000000;0777777777777777777777;",128,0,0,0
        .stabs  "long long unsigned
int:t(0,7)=@s64;r(0,7);0;01777777777777777777777;",128,0,0,0
        .stabs  "short int:t(0,8)=@s16;r(0,8);-32768;32767;",128,0,0,0
        .stabs  "short unsigned int:t(0,9)=@s16;r(0,9);0;65535;",128,0,0,0
        .stabs  "signed char:t(0,10)=@s8;r(0,10);-128;127;",128,0,0,0
        .stabs  "unsigned char:t(0,11)=@s8;r(0,11);0;255;",128,0,0,0
        .stabs  "float:t(0,12)=r(0,1);4;0;",128,0,0,0
        .stabs  "double:t(0,13)=r(0,1);8;0;",128,0,0,0
        .stabs  "long d

This does not happen at if -O2 or -g is removed.


-- 
           Summary: Failure to build 20001226-1.c with -O2 -g
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: fxcoudert at gcc dot gnu dot org
 GCC build triplet: i386-pc-cygwin
  GCC host triplet: i386-pc-cygwin
GCC target triplet: i386-pc-mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30645