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.
