Test case for #9938

Marked as known_broken
sarvex · Dec 29, 2014 · 65e3e0b · 65e3e0b
1 parent 4e1e776
commit 65e3e0b
Show file tree

Hide file tree

Showing 3 changed files with 23 additions and 0 deletions.
diff --git a/testsuite/tests/driver/Makefile b/testsuite/tests/driver/Makefile
@@ -586,3 +586,9 @@ write_interface_make:
 	$(RM) -rf write_interface_make/A011.hi
 	"$(TEST_HC)" $(TEST_HC_OPTS) -hidir write_interface_make -fno-code -fwrite-interface --make A011.hs
 	test -f write_interface_make/A011.hi
+
+.PHONY: T9938
+T9938:
+	$(RM) -rf T9938.o T9938.hi T9938
+	"$(TEST_HC)" -c T9938.hs
+	"$(TEST_HC)" T9938.o -o T9938
diff --git a/testsuite/tests/driver/T9938.hs b/testsuite/tests/driver/T9938.hs
@@ -0,0 +1,13 @@
+module Main where
+
+import Control.Monad
+import Control.Monad.Trans.State
+
+solve :: Int -> StateT () [] ()
+solve carry | carry > 0 =
+  do guard (0 == carry)
+     solve (carry -1)
+solve 0 = mzero
+
+main :: IO ()
+main = return ()
diff --git a/testsuite/tests/driver/all.T b/testsuite/tests/driver/all.T
@@ -410,3 +410,7 @@ test('write_interface_make', normal, run_command, ['$MAKE -s --no-print-director
 
 test('T9776', normal, compile_fail, ['-frule-check'])
 
+test('T9938',
+     [ extra_clean(['T9938.hi', 'T9938.o', 'T9938']), expect_broken(9938)],
+     run_command,
+     ['$MAKE -s --no-print-directory T9938'])