re-balance CI

Author: RalfJung

src/tools/miri/ci/ci.sh

@@ -164,12 +164,15 @@ case $HOST_TARGET in
     MANY_SEEDS=16 TEST_TARGET=arm-unknown-linux-gnueabi run_tests # 32bit ARM
     MANY_SEEDS=16 TEST_TARGET=aarch64-pc-windows-gnullvm run_tests # gnullvm ABI
     MANY_SEEDS=16 TEST_TARGET=s390x-unknown-linux-gnu run_tests # big-endian architecture of choice
-    # Custom target JSON file
-    TEST_TARGET=tests/x86_64-unknown-kernel.json MIRI_NO_STD=1 run_tests_minimal no_std
+    # Not officially supported tier 2
+    MANY_SEEDS=16 TEST_TARGET=x86_64-unknown-freebsd run_tests
+    MANY_SEEDS=16 TEST_TARGET=i686-unknown-freebsd run_tests
     ;;
   armv7-unknown-linux-gnueabihf)
     # Host
     GC_STRESS=1 MIR_OPT=1 MANY_SEEDS=64 TEST_BENCH=1 CARGO_MIRI_ENV=1 run_tests
+    # Custom target JSON file
+    TEST_TARGET=tests/x86_64-unknown-kernel.json MIRI_NO_STD=1 run_tests_minimal no_std
     ;;
   aarch64-apple-darwin)
     # Host
@@ -181,8 +184,6 @@ case $HOST_TARGET in
     MANY_SEEDS=16 TEST_TARGET=mips-unknown-linux-gnu run_tests # a 32bit big-endian target, and also a target without 64bit atomics
     MANY_SEEDS=16 TEST_TARGET=x86_64-unknown-illumos run_tests
     MANY_SEEDS=16 TEST_TARGET=x86_64-pc-solaris run_tests
-    MANY_SEEDS=16 TEST_TARGET=x86_64-unknown-freebsd run_tests
-    MANY_SEEDS=16 TEST_TARGET=i686-unknown-freebsd run_tests
     ;;
   i686-pc-windows-msvc)
     # Host