is there any way in gdb to step backward.
On 6/15/06, Andrew Haley <[EMAIL PROTECTED]> wrote:
kernel coder writes:
> hi,
> I'm trying to figure out the code flow of gcc.But i'm not been
> able to locate the location at which an expression is compared with
> pattern given in XXXX.md file.
>
> I think XXXX.md file is resposible fo generation of emit-insn.c
> file.But again at which point the functions in emit-insn.c file are
> called for generation of RTL file.
>
> Please tell me where in code the pattern matching is done for RTL
> generation.
Run cc1 in gdb. Put a breakpoint on make_insn_raw. Go up from that
point to find the caller. You'll find that GEN_foo routines are
called from a number of places, in particular the expander.
Andrew.
