------- Comment #15 from bonzini at gnu dot org 2009-08-07 07:24 ------- Subject: Re: version 150336 broke bootstrap on ia64-hp-hpux11.23
> After applying the most recent patch the ia64 bootstrap started working but > the > pa bootstrap (hppa2.0w-hp-hpux11.11) started failing. The stage2/stage3 > comparision failed. I cut down fortran/io.c into test4.c, and when I compile > this test case with the stage1-gcc/cc1 I get unsigned extraction instructions > in the code stream but with stage2-gcc/cc1 I get signed extraction > instructions. I think the signed extractions are wrong since format_string is > a pointer to an unsigned int, but then again we are putting the value into a > signed char. Ouch, this means stage2 is being miscompiled. The testcase is very useful, but now one needs to understand _where_ the miscompiled code is and minimize that testcase. If you can give me access to the HPUX machine, I can debug it. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40952
