47a37ce45e
* config/i386/i386.opt: New target option -mx87regparm. * config/i386/i386.h (struct ix86_args): Add x87_nregs, x87_regno, float_in_x87: Add new variables. mmx_words, sse_words: Remove. (X87_REGPARM_MAX): Define. * config/i386/i386.c (override_options): Error out for -mx87regparm but no 80387 support. (ix86_attribute_table): Add x87regparm. (ix86_handle_cconv_attribute): Update comments for x87regparm. (ix86_comp_type_attributes): Check for mismatched x87regparm types. (ix86_function_x87regparm): New function. (ix86_function_arg_regno_p): Add X87_REGPARM_MAX 80387 floating point registers. (init_cumulative_args): Initialize x87_nregs and float_in_x87 variables. (function_arg_advance): Process x87_nregs and x87_regno when floating point argument is to be passed in 80387 register. (function_arg): Pass XFmode arguments in 80387 registers for local functions. Pass SFmode and DFmode arguments to local functions in 80387 registers when flag_unsafe_math_optimizations is set. * reg-stack.c (convert_regs_entry): Disable NaN load for stack registers that are used for argument passing. * doc/extend.texi: Document x87regparm function attribute. * doc/invoke.texi: Document -mx87regparm. testsuite/ChangeLog: * gcc.target/i386/x87regparm-1.c: New test. * gcc.target/i386/x87regparm-2.c: New test. * gcc.target/i386/x87regparm-3.c: New test. * gcc.target/i386/x87regparm-4.c: New test. From-SVN: r118859 |
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| boehm-gc | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgfortran | ||
| libgomp | ||
| libiberty | ||
| libjava | ||
| libmudflap | ||
| libobjc | ||
| libssp | ||
| libstdc++-v3 | ||
| maintainer-scripts | ||
| zlib | ||
| ABOUT-NLS | ||
| ChangeLog | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltcf-c.sh | ||
| ltcf-cxx.sh | ||
| ltcf-gcj.sh | ||
| ltconfig | ||
| ltmain.sh | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| README | ||
| README.SCO | ||
| symlink-tree | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file 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.html for how to report bugs usefully.