[LLVMdev] possible dwarf regression

reed kotler rkotler at mips.com
Mon Sep 23 17:44:41 PDT 2013

In compiling perlbench in SPEC2006 today, I get the following asm code:

     .4byte    ($debug_loc2280)
     .4byte    1
     .4byte    PerlIO_fd_refcnt
$set1406 = ($.bss_end)-PerlIO_fd_refcnt
     .4byte    ($set1406)
     .4byte    PerlIO_perlio
$set1407 = ($.data_end)-PerlIO_perlio
     .4byte    ($set1407)
     .4byte    ($func_begin0)
$set1408 = ($.text_end)-($func_begin0)
     .4byte    ($set1408)

Gas complains:

perlio.s: Assembler messages:
perlio.s:43549: Error: operation combines symbols in different segments
clang: error: assembler command failed with exit code 1 (use -v to see 
specmake: *** [perlio.o] Error 1
specmake: *** Waiting for unfinished jobs....
regexec.c:3275:111: warning: use of logical '||' with constant operand 

This is on the line
$set1406 = ($.bss_end)-PerlIO_fd_refcnt


     .section    .rodata.str1.1,"aMS", at progbits,1
     .asciz    "r"
     .size    $.str34, 2

     .type    PerlIO_fd_refcnt, at object
     .comm    PerlIO_fd_refcnt,8192,4
     .type    $.str38, at object

More information about the llvm-dev mailing list