mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-18 19:10:12 +08:00
7609e7209a
* reload.h (compute_use_by_pseudos): Declare. * reload1.c (spilled_pseudos, insns_need_reload): New variables. (something_needs_reloads): Delete variable. (finish_spills): New function. (compute_use_by_pseudos): New function. (delete_caller_save_insns): Lose argument FIRST. All callers changed. Use the reload_insn_chain instead of walking the rtl directly. (reload): Allocate and free spilled_pseudos. Ensure that all calls of spill_hard_reg are followed by a call to finish_spills. Use the insns_need_reload list instead of something_needs_reloads to find out if reload_as_needed must be called. Clear unused_insn_chains at the end. (calculate_needs_all_insns): Lose FIRST parameter. All callers changed. Delete code to keep track of current basic block. Walk reload_insn_chain instead of the rtl structure. Build the insns_need_reload chain. Remember which insns need reloading/elimination by setting the appropriate fields in struct insn_chain, not by putting modes on the insn. (calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of arg INSN. All callers changed. Delete declaration of struct needs. Don't set something_needs_reloads. Record insn needs in the CHAIN argument. (spill_hard_reg): Record the affected pseudos in spilled_pseudos. (reload_as_needed): Lose FIRST arg. All callers changed. Walk the reload_insn_chain instead of the rtx structure. Delete code to keep track of current basic block. Rename one of the NEXT variables to OLD_NEXT. (allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All callers changed. (choose_reload_regs): Likewise. (emit_reload_insns): Replace INSN and BB args with arg CHAIN. All callers changed. * caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout instead of (MOVE_MAX / UNITS_PER_WORD) computation. (hard_regs_live, hard_regs_need_restore): Delete variables. (n_regs_saved): Now static. (referenced_regs, this_insn_sets): New variables. (setup_save_areas): Restructure the code a bit. (restore_referenced_regs): Delete function. (mark_referenced_regs): New function, similar to the old restore_referenced_regs, but mark registers in referenced_regs. (clear_reg_live): Delete function. (mark_set_regs): Renamed from set_reg_live. All callers changed. Only mark registers in this_insn_sets. (save_call_clobbered_regs): Rework this function to walk the reload_insn_chain instead of using the list of instructions directly. Delete code to keep track of register lives, compute live regs on the fly from information in the chain. Instead of calling restore_referenced_regs, use mark_referenced_regs, then walk the set it computes and call insert_restore as appropriate. (insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All callers changed. Restructure the code a bit. Test hard_regs_saved instead of hard_regs_need_restore. (insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE args. All callers changed. Restructure the code a bit. Use TO_SAVE to determine which regs to save instead of more complicated test. (insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All callers changed. Create a new insn_chain structure for the new insn and place it into the chain. * rtl.texi: Update documentation to reflect that reload no longer puts modes on the insns. From-SVN: r23074 |
||
|---|---|---|
| config | ||
| contrib | ||
| etc | ||
| gcc | ||
| include | ||
| INSTALL | ||
| libchill | ||
| libf2c | ||
| libiberty | ||
| libio | ||
| libobjc | ||
| libstdc++ | ||
| texinfo | ||
| .cvsignore | ||
| ChangeLog | ||
| config-ml.in | ||
| config.guess | ||
| config.if | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| install-sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.in | ||
| missing | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| symlink-tree | ||
| ylwrap | ||
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. Check the INSTALL directory for detailed configuration and installation instructions. Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.