https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88799
--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- Author: rearnsha Date: Fri Jan 18 13:25:37 2019 New Revision: 268077 URL: https://gcc.gnu.org/viewcvs?rev=268077&root=gcc&view=rev Log: [arm] PR target/88799 Add +mp and +sec extensions to ARMv7-a (gcc-8 backport) Most armv7-a implementations support a number of basic extensions to the architecture which are not particularly important to the compiler, but can matter if code contains inline assembly. This patch adds support for these extensions, based on the capabilities that GAS already provides for the appropriate CPUs. For the purposes of multilib selection we ignore these extensions entirely and map the extended architecture versions down to the base versions we have already support for. gcc: PR target/88799 * config/arm/arm-cpus.in (mp): New feature. (sec): New feature. (fgroup ARMv7ve): Add mp and sec features. (arch armv7-a): Add options to allow mp and sec extensions. (cpu generic-armv7-a): Add options to allow mp and sec extensions. (cpu cortex-a5, cpu cortex-7, cpu cortex-a9): Add mp and sec extenstions to the base architecture. (cpu cortex-a8): Add sec extension to the base architecture. (cpu marvell-pj4): Add mp and sec extensions to the base architecture. * config/arm/t-aprofile (MULTILIB_MATCHES): Map all armv7-a arch variants down to the base v7-a varaint. * config/arm/t-multilib (v7_a_arch_variants): New variable. * doc/invoke.texi (ARM Options): Add +mp and +sec to the list of permitted extensions for -march=armv7-a and for -mcpu=generic-armv7-a. testsuite: * gcc.target/arm/multilib.exp (config "aprofile"): Add tests for mp and sec extensions to armv7-a. Modified: branches/gcc-8-branch/gcc/ChangeLog branches/gcc-8-branch/gcc/config/arm/arm-cpus.in branches/gcc-8-branch/gcc/config/arm/t-aprofile branches/gcc-8-branch/gcc/config/arm/t-multilib branches/gcc-8-branch/gcc/doc/invoke.texi branches/gcc-8-branch/gcc/testsuite/ChangeLog branches/gcc-8-branch/gcc/testsuite/gcc.target/arm/multilib.exp
