Use latest GCC and LLVM available on Travis.

.travis.yml

@@ -17,13 +17,34 @@ matrix:
         - COMMON_FLAGS="DYNAMIC_ARCH=1 TARGET=NEHALEM NUM_THREADS=32"
       script:
         - set -e
-        - make QUIET_MAKE=1 $COMMON_FLAGS $BTYPE
+        - make $COMMON_FLAGS $BTYPE
         - make -C test $COMMON_FLAGS $BTYPE
         - make -C ctest $COMMON_FLAGS $BTYPE
         - make -C utest $COMMON_FLAGS $BTYPE
       env:
         - TARGET_BOX=LINUX64
         - BTYPE="BINARY=64"
+    - &test-ubuntu-gcc-9
+      os: linux
+      compiler: gcc-9
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - &gcc9_deps [gcc-9, gfortran-9]
+      before_script: &common-before
+        - COMMON_FLAGS="DYNAMIC_ARCH=1 TARGET=NEHALEM NUM_THREADS=32 FC=gfortran-9"
+      script:
+        - set -e
+        - make $COMMON_FLAGS $BTYPE
+        - make -C test $COMMON_FLAGS $BTYPE
+        - make -C ctest $COMMON_FLAGS $BTYPE
+        - make -C utest $COMMON_FLAGS $BTYPE
+      env:
+        - TARGET_BOX=LINUX64
+        - BTYPE="BINARY=64"
+
 
     - <<: *test-ubuntu
       os: linux-ppc64le
@@ -34,12 +55,12 @@ matrix:
         - TARGET_BOX=PPC64LE_LINUX
         - BTYPE="BINARY=64 USE_OPENMP=1"
 
-    - <<: *test-ubuntu
+    - <<: *test-ubuntu-gcc-9
       env:
         - TARGET_BOX=LINUX64
         - BTYPE="BINARY=64 USE_OPENMP=1"
 
-    - <<: *test-ubuntu
+    - <<: *test-ubuntu-gcc-9
       env:
         - TARGET_BOX=LINUX64
         - BTYPE="BINARY=64 INTERFACE64=1"