Andrew Pinski
cbcf4a50fa
This is a simple patch which simplifies the __builtin_aarch64_sqrt* builtins into the internal function SQRT which allows for constant folding and other optimizations at the gimple level. It was originally suggested we do to __builtin_sqrt just for __builtin_aarch64_sqrtdf when -fno-math-errno but since r6-4969-g686ee9719a4 we have the internal function SQRT which does the same so it makes we don't need to check -fno-math-errno either now. Applied as approved after bootstrapped and tested on aarch64-linux-gnu with no regressions. PR target/64821 gcc/ChangeLog: * config/aarch64/aarch64-builtins.cc (aarch64_general_gimple_fold_builtin): Handle __builtin_aarch64_sqrt* and simplify into SQRT internal function. gcc/testsuite/ChangeLog: * gcc.target/aarch64/vsqrt-1.c: New test. * gcc.target/aarch64/vsqrt-2.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.