This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: A live analysis problem on gcc4.2.3

> I don't want to update insn_live_in, I just want to get each insn's
> live in and live out, so I start from the end of basic block and
> propagate backward.

But how can the output of 

       fprintf(file, "before propagate, insn live in:\n");
       debug_bitmap_file (file, insn_live_in);

and

       fprintf(file, "after propagate, insn live in:\n");
       debug_bitmap_file (file, insn_live_in);

be different if you don't update insn_live_in?  You need to say what you're 
really dumping here.

-- 
Eric Botcazou
Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]