Philipp Tomsich
4c7d336b67
With the recent improvements to the splitting of special cases of branch patterns on RISC-V, a dependency on an unmerged/in-discussion change for branch-equals-zero slipped in: this allowed a non-X mode to be presented to branch-equals-zero (where only X mode is permissible). This addresses the issue by wrapping the ANYI operand in a paradoxical SUBREG:X (the high bits can be safely ignored, as we we perform an and-immediate before the branch in the pattern). Tested against the GCC testsuite and committed as obvious. gcc/ChangeLog: PR target/107786 * config/riscv/riscv.md (*branch<ANYI:mode>_shiftedarith_equals_zero): Wrap ANYI in a subreg, as our branch instructions only supports X. gcc/testsuite/ChangeLog: * gcc.target/riscv/pr107786-2.c: New test. * gcc.target/riscv/pr107786.c: New test.
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.