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 ;-)

	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.target/arm/multilib.exp: Add new tests for rm-profile only.

From-SVN: r279993

gcc/ChangeLog

+2020-01-08  Richard Earnshaw  <rearnsha@arm.com>
+
+	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.
+
 2020-01-08  Feng Xue  <fxue@os.amperecomputing.com>
 
 	PR ipa/93084

gcc/config/arm/t-multilib

@@ -133,10 +133,19 @@ MULTILIB_MATCHES	+= march?armv7-r+fp.sp=march?armv8-r+crc+fp.sp
 
 ifeq (,$(HAS_APROFILE))
 # Map all v7-a
+
 MULTILIB_MATCHES	+= march?armv7=march?armv7-a
+
+MULTILIB_MATCHES	+= $(foreach ARCH, $(v7_a_arch_variants), \
+			     march?armv7=march?armv7-a$(ARCH))
+
 MULTILIB_MATCHES	+= $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
 			     march?armv7+fp=march?armv7-a$(ARCH))
 
+MULTILIB_MATCHES	+= $(foreach ARCHVAR, $(v7_a_arch_variants), \
+			     $(foreach ARCH, $(v7_a_nosimd_variants) $(v7_a_simd_variants), \
+			       march?armv7+fp=march?armv7-a$(ARCHVAR)$(ARCH)))
+
 MULTILIB_MATCHES	+= march?armv7=march?armv7ve
 
 # ARMv7ve FP/SIMD variants: map down to v7+fp

gcc/testsuite/ChangeLog

+2020-01-08  Richard Earnshaw  <rearnsha@arm.com>
+
+	PR target/93188
+	* gcc.target/arm/multilib.exp: Add new tests for rm-profile only.
+
 2020-01-08  Feng Xue  <fxue@os.amperecomputing.com>
 
 	PR ipa/93084

gcc/testsuite/gcc.target/arm/multilib.exp

@@ -442,6 +442,22 @@ if {[multilib_config "aprofile"] } {
 	check_multi_dir $opts $dir
     }
 }
+if {[multilib_config "rmprofile"] && ![multilib_config "aprofile"]} {
+    foreach {opts dir} {
+	{-mcpu=cortex-a9 -mfpu=auto -mfloat-abi=soft} "thumb/v7/nofp"
+	{-mcpu=cortex-a8 -mfpu=auto -mfloat-abi=softfp} "thumb/v7+fp/softfp"
+	{-mcpu=cortex-a5 -mfpu=auto -mfloat-abi=hard} "thumb/v7+fp/hard"
+	{-mcpu=cortex-a53 -mfpu=auto -mfloat-abi=hard} "thumb/v7+fp/hard"
+	{-march=armv7-a+fp -mfpu=auto -mfloat-abi=softfp} "thumb/v7+fp/softfp"
+	{-march=armv7-a+fp -mfpu=auto -mfloat-abi=soft} "thumb/v7/nofp"
+	{-march=armv7-a+mp+simd -mfpu=auto -mfloat-abi=softfp} "thumb/v7+fp/softfp"
+	{-march=armv7-a -mfpu=vfpv4 -mfloat-abi=hard} "thumb/v7+fp/hard"
+	{-march=armv7-a+fp -mfpu=auto -mfloat-abi=hard} "thumb/v7+fp/hard"
+	{-march=armv7-a -mfpu=vfpv4 -mfloat-abi=soft} "thumb/v7/nofp"
+    } {
+	check_multi_dir $opts $dir
+    }
+}
 if {[multilib_config "rmprofile"] } {
     foreach {opts dir} {
 	{-mcpu=cortex-m0 -mfpu=auto -mfloat-abi=soft} "thumb/v6-m/nofp"