Add SIMD test helpers

This commit adds a couple of scripts that help test SIMD functionality
on different machines through QEMU.

tools/test_simd_qemu.sh will automatically start qemu, run tests
and stop it. it uses the Ubuntu cloud images which are built for
x86_64, arm and arm64.

tools/test_simd.sh run a number of tests including compiling
with different flags, unit tests, and gathering the functions
selected in gf_init (and when compiling with DEBUG_FUNCTIONS)

1 files changed, 125 insertions, 0 deletions

diff --git a/tools/test_simd.sh b/tools/test_simd.sh
new file mode 100755
index 0000000..1268f87
--- /dev/null
+++ b/tools/test_simd.sh
@@ -0,0 +1,125 @@
+#!/bin/bash -e
+
+# this scripts has a number of tests for SIMD. It can be invoked
+# on the host or on a QEMU machine.
+
+script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+host_cpu=`uname -p`
+results=${script_dir}/test_simd.results
+
+# runs unit tests and save the results
+test_unit(){
+    { ./configure && make clean && make; } || { echo "Compile FAILED" >> ${results}; return 1; }
+    make check || { echo "gf_methods $i FAILED" >> ${results}; ((++failed)); }
+    cat tools/test-suite.log >> ${results} || true
+}
+
+# build with DEBUG_FUNCTIONS and save all methods selected
+# to a results file
+test_functions() {
+    failed=0
+
+    { ./configure && make clean && make CFLAGS="-DDEBUG_FUNCTIONS"; } || { echo "Compile FAILED" >> ${results}; return 1; }
+    for i in 128 64 32 16 8 4; do
+        { ${script_dir}/gf_methods $i -ACD -X >> ${results}; } || { echo "gf_methods $i FAILED" >> ${results}; ((++failed)); }
+    done
+
+    return ${failed}
+}
+
+compile_arm() {
+    failed=0
+
+    echo -n "Compiling with NO SIMD support..." >> ${results}
+    { ./configure --disable-neon && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with FULL SIMD support..." >> ${results}
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    return ${failed}
+}
+
+compile_intel() {
+    failed=0
+
+    echo -n "Compiling with NO SIMD support..." >> ${results}
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with SSE2 only..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=no
+    export ax_cv_have_ssse3_ext=no
+    export ax_cv_have_sse41_ext=no
+    export ax_cv_have_sse42_ext=no
+    export ax_cv_have_pclmuldq_ext=no
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with SSE2,SSE3 only..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=yes
+    export ax_cv_have_ssse3_ext=no
+    export ax_cv_have_sse41_ext=no
+    export ax_cv_have_sse42_ext=no
+    export ax_cv_have_pclmuldq_ext=no
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with SSE2,SSE3,SSSE3 only..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=yes
+    export ax_cv_have_ssse3_ext=yes
+    export ax_cv_have_sse41_ext=no
+    export ax_cv_have_sse42_ext=no
+    export ax_cv_have_pclmuldq_ext=no
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with SSE2,SSE3,SSSE3,SSE4_1 only..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=yes
+    export ax_cv_have_ssse3_ext=yes
+    export ax_cv_have_sse41_ext=yes
+    export ax_cv_have_sse42_ext=no
+    export ax_cv_have_pclmuldq_ext=no
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with SSE2,SSE3,SSSE3,SSE4_2 only..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=yes
+    export ax_cv_have_ssse3_ext=yes
+    export ax_cv_have_sse41_ext=no
+    export ax_cv_have_sse42_ext=yes
+    export ax_cv_have_pclmuldq_ext=no
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    echo -n "Compiling with FULL SIMD support..." >> ${results}
+    export ax_cv_have_sse_ext=no 
+    export ax_cv_have_sse2_ext=yes
+    export ax_cv_have_sse3_ext=yes
+    export ax_cv_have_ssse3_ext=yes
+    export ax_cv_have_sse41_ext=yes
+    export ax_cv_have_sse42_ext=yes
+    export ax_cv_have_pclmuldq_ext=yes
+    { ./configure && make clean && make && echo "SUCCESS" >> ${results}; } || { echo "FAIL" >> ${results}; ((++failed)); }
+
+    return ${failed}
+}
+
+# test that we can compile the source code with different
+# SIMD options. We assume that we are running on processor 
+# full SIMD support
+test_compile() {
+    case $host_cpu in
+        aarch64*|arm*) compile_arm ;;
+        i[[3456]]86*|x86_64*|amd64*) compile_intel ;;
+    esac
+}
+
+cd ${script_dir}/..
+rm -f ${results}
+
+test_$1
+exit $?