71196d4e64
* gcc-interface/gigi.h (gnat_useless_type_conversion): Declare. (rest_of_subprog_body_compilation): Likewise. * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: For renaming, test for useless conversions by means of gnat_useless_type_conversion. * gcc-interface/trans.c: Include bitmap.h and cgraph.h. (language_function): Add named_ret_val and other_ret_val. (f_named_ret_val): New macro. (f_other_ret_val): Likewise. (gigi): Call rest_of_subprog_body_compilation. (struct nrv_data): New structure. (is_nrv_p): New predicate. (prune_nrv_r): New helper function. (prune_nrv_in_block): New function. (finalize_nrv_r): New helper function. (finalize_nrv): New function. (return_value_ok_for_nrv_p): New predicate. (build_return_expr): If optimization is enabled, record candidates for the Named Return Value optimization. (build_function_stub): Call rest_of_subprog_body_compilation. (Subprogram_Body_to_gnu): If optimization is enabled and there are candidates, finalize the Named Return Value optimization. Call rest_of_subprog_body_compilation. (call_to_gnu): At the end, if a return value is needed, simplify the result before wrapping it up in a COMPOUND_EXPR. * gcc-interface/utils.c (end_subprog_body): Split into... (rest_of_subprog_body_compilation): ...this. New function. (gnat_useless_type_conversion): Likewise. From-SVN: r179650 |
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| INSTALL | ||
| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| include | ||
| intl | ||
| libada | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libjava | ||
| libmudflap | ||
| libobjc | ||
| libquadmath | ||
| libssp | ||
| libstdc++-v3 | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| ABOUT-NLS | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| ChangeLog | ||
| ChangeLog.tree-ssa | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| README | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| symlink-tree | ||
| ylwrap | ||
README
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully.