6455a49ed4
2013-10-09 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> * config/s390/s390.c (struct s390_frame_layout): New field gpr_save_slots. (cfun_save_arg_fprs_p, cfun_gpr_save_slot): New macros. (s390_reg_clobbered_rtx, s390_regs_ever_clobbered): Change type of regs_ever_clobbered to char*. (s390_regs_ever_clobbered): Check crtl->saves_all_registers instead of cfun->has_nonlocal_label. Ignore frame related restore INSNs. (s390_register_info): Enable FPR save slots. Move/Copy some functionality into ... (s390_register_info_gprtofpr, s390_register_info_stdarg_fpr) (s390_register_info_stdarg_gpr, s390_optimize_register_info): New function. (s390_frame_info): Do gpr slot allocation here now. stdarg does not imply a stack frame. (s390_init_frame_layout): Remove variable clobbered_regs. (s390_update_register_info): Remove function. (s390_hard_regno_rename_ok): Call-saved regs without a save slot cannot be used for register renaming. (s390_hard_regno_scratch_ok): New function. (TARGET_HARD_REGNO_SCRATCH_OK): Define target hook. (s390_initial_elimination_offset): Change offset calculation of the return address pointer. (save_gprs): Deal with only r6 being saved from the call-saved regs. (restore_gprs): Set frame related flag. (s390_save_gprs_to_fprs, s390_restore_gprs_from_fprs): New functions. (s390_emit_prologue): Call s390_register_info instead of s390_update_frame_layout. Call s390_save_gprs_to_fprs. (s390_emit_epilogue): Call s390_restore_gprs_from_fprs. (s390_optimize_prologue): Call s390_optimize_register_info. Try to remove also FPR slot save/restore INSNs. Remove frame related flags from restore INSNs. From-SVN: r203303 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
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| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libjava | ||
| libmudflap | ||
| libobjc | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .gitignore | ||
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| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
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