tests/tcg/s390x: Add long-double.c
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target
index 79250f3..1d45427 100644
--- a/tests/tcg/s390x/Makefile.target
+++ b/tests/tcg/s390x/Makefile.target
@@ -26,6 +26,7 @@
TESTS+=noexec
TESTS+=div
TESTS+=clst
+TESTS+=long-double
Z13_TESTS=vistr
$(Z13_TESTS): CFLAGS+=-march=z13 -O2
diff --git a/tests/tcg/s390x/long-double.c b/tests/tcg/s390x/long-double.c
new file mode 100644
index 0000000..757a626
--- /dev/null
+++ b/tests/tcg/s390x/long-double.c
@@ -0,0 +1,24 @@
+/*
+ * Perform some basic arithmetic with long double, as a sanity check.
+ * With small integral numbers, we can cross-check with integers.
+ */
+
+#include <assert.h>
+
+int main()
+{
+ int i, j;
+
+ for (i = 1; i < 5; i++) {
+ for (j = 1; j < 5; j++) {
+ long double la = (long double)i + j;
+ long double lm = (long double)i * j;
+ long double ls = (long double)i - j;
+
+ assert(la == i + j);
+ assert(lm == i * j);
+ assert(ls == i - j);
+ }
+ }
+ return 0;
+}
