52057dc4ac
In this testcase the user forces an odd register as the starting reg for a DFmode value. The output_move_double function tries to store that using an STRD instruction. But for TARGET_ARM the starting register of an STRD must be an even one. This is always the case with compiler-allocated registers for DFmode values, but the inline assembly forced our hand here. This patch restricts the STRD-emitting logic in output_move_double to not avoid odd-numbered source registers in STRD. I'm not a fan of the whole function, we should be exposing a lot of the logic in there to RTL rather than at the final output stage, but that would need to be fixed separately. * config/arm/arm.c (output_move_double): Don't allow STRD instructions if starting source register is not even. * gcc.target/arm/arm-soft-strd-even.c: New test. From-SVN: r262250 |
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| config | ||
| contrib | ||
| fixincludes | ||
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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. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.