[Bug target/93188] [9 regression] a-profile multilib mismatch for rmprofile toolchain when architecture includes +mp or +sec

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93188

--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Author: rearnsha
Date: Fri Jan 10 16:50:15 2020
New Revision: 280123

URL: https://gcc.gnu.org/viewcvs?rev=280123&root=gcc&view=rev
Log:
backport: arm: Fix rmprofile multilibs when architecture includes +mp or +sec
(PR target/93188)

When only the rmprofile multilibs are built, compiling for armv7-a
should select the generic v7 multilibs.  This used to work before +sec
and +mp were added to the architecture options but it was broken by
that update.  This patch fixes those variants and adds some tests to
ensure that they remain fixed 

gcc/ChangeLog:
2020-01-10  Przemyslaw Wirkus  <przemyslaw.wir...@arm.com>

        Backport from trunk
        PR target/93188
        * config/arm/t-multilib (MULTILIB_MATCHES): Add rules to match
        armv7-a{+mp,+sec,+mp+sec} to appropriate armv7 multilib variants
        when only building rm-profile multilibs.

gcc/testsuite/ChangeLog:
2020-01-10  Przemyslaw Wirkus  <przemyslaw.wir...@arm.com>

        Backport from trunk
        * gcc.target/arm/multilib.exp: Add new tests for rm-profile only.

Modified:
    branches/gcc-9-branch/gcc/ChangeLog
    branches/gcc-9-branch/gcc/config/arm/t-multilib
    branches/gcc-9-branch/gcc/testsuite/ChangeLog
    branches/gcc-9-branch/gcc/testsuite/gcc.target/arm/multilib.exp