1 files changed, 47 insertions, 0 deletions
diff --git a/test/regression/telescopes.c b/test/regression/telescopes.c
new file mode 100644
index 00000000..02ff3b60
--- /dev/null
+++ b/test/regression/telescopes.c
@@ -0,0 +1,47 @@
+/* Nested `||`, `&&` and ` ? : ` expressions. */
+
+#include <stdio.h>
+
+int orand(int x, int y, int z) { return x || (y && z); }
+
+int andor(int x, int y, int z) { return (x || y) && z; }
+
+int choose(int x, int y, int z) { return x ? y : z; }
+
+int choose2(int a, int x1, int y1, int z1, int x2, int y2, int z2)
+{ return a ? (x1 ? y1 : z1) : (x2 ? y2 : z2); }
+
+double choosed(int x, double y, double z) { return x ? y : z; }
+
+double choose2d(int a, int x1, long long y1, int z1, int x2, double y2, long long z2)
+{ return a ? (x1 ? y1 : z1) : (x2 ? y2 : z2); }
+
+long long chooseandl(int a, long long x, int y, int z)
+{ return a ? x : y && z; }
+
+int main()
+{
+  printf("orand: %d %d %d %d\n",
+         orand(1,0,0), orand(0,1,0), orand(0,0,1), orand(0,1,1));
+  printf("andor: %d %d %d %d\n",
+         andor(0,0,1), andor(1,0,1), andor(0,1,1), andor(1,1,0));
+  printf("choose: %d %d\n",
+         choose(1, 23, 45), choose(0, 23, 45));
+  printf("choose2: %d %d %d %d\n",
+         choose2(1, 1, 23, 45, 0, 67, 89),
+         choose2(1, 0, 23, 45, 0, 67, 89),
+         choose2(0, 0, 23, 45, 0, 67, 89),
+         choose2(0, 0, 23, 45, 1, 67, 89));
+  printf("choosed: %g %g\n",
+         choosed(1, 23.32, 45.54), choosed(0, 23.32, 45.54));
+  printf("choose2d: %g %g %g %g\n",
+         choose2d(1, 1, 23, 45, 0, 67.76, 89),
+         choose2d(1, 0, 23, 45, 0, 67.76, 89),
+         choose2d(0, 0, 23, 45, 0, 67.76, 89),
+         choose2d(0, 0, 23, 45, 1, 67.76, 89));
+  printf("chooseandl: %lld %lld %lld %lld\n",
+         chooseandl(1, 23, 0, 0),
+         chooseandl(0, 23, 0, 1),
+         chooseandl(0, 23, 1, 0),
+         chooseandl(0, 23, 1, 1));
+}