5 files changed, 21 insertions, 0 deletions
diff --git a/testsuite/tests/codeGen/should_compile/T16449_1.hs b/testsuite/tests/codeGen/should_compile/T16449_1.hs
new file mode 100644
index 0000000000..b1ec71efef
--- /dev/null
+++ b/testsuite/tests/codeGen/should_compile/T16449_1.hs
@@ -0,0 +1,8 @@
+module T16449_1 where
+
+import Data.Bits (setBit)
+
+f :: Int
+f = foldl setter 0 $ zip [0..] [()]
+  where
+    setter v (ix, _) = setBit v ix
diff --git a/testsuite/tests/codeGen/should_compile/all.T b/testsuite/tests/codeGen/should_compile/all.T
index 547814a0d6..ed7f5f3699 100644
--- a/testsuite/tests/codeGen/should_compile/all.T
+++ b/testsuite/tests/codeGen/should_compile/all.T
@@ -59,3 +59,5 @@ test('T15155',
 
 test('T15155l', when(unregisterised(), skip),
      makefile_test, [])
+
+test('T16449_1', normal, compile, [''])
diff --git a/testsuite/tests/codeGen/should_run/T16449_2.hs b/testsuite/tests/codeGen/should_run/T16449_2.hs
new file mode 100644
index 0000000000..3424d43e25
--- /dev/null
+++ b/testsuite/tests/codeGen/should_run/T16449_2.hs
@@ -0,0 +1,9 @@
+{-# LANGUAGE MagicHash #-}
+
+module Main where
+
+import GHC.Prim
+import GHC.Int
+
+-- Shift should be larger than the word size (e.g. 64 on 64-bit) for this test.
+main = print (I# (uncheckedIShiftL# 1# 1000#))
diff --git a/testsuite/tests/codeGen/should_run/T16449_2.stderr b/testsuite/tests/codeGen/should_run/T16449_2.stderr
new file mode 100644
index 0000000000..869a5b0f91
--- /dev/null
+++ b/testsuite/tests/codeGen/should_run/T16449_2.stderr
@@ -0,0 +1 @@
+T16449_2: Bad shift length 1000
diff --git a/testsuite/tests/codeGen/should_run/all.T b/testsuite/tests/codeGen/should_run/all.T
index 6b4d772627..f43ced136c 100644
--- a/testsuite/tests/codeGen/should_run/all.T
+++ b/testsuite/tests/codeGen/should_run/all.T
@@ -195,3 +195,4 @@ test('T15892',
         extra_run_opts('+RTS -G1 -A32k -RTS') ],
      compile_and_run, ['-O'])
 test('T16617', normal, compile_and_run, [''])
+test('T16449_2', exit_code(1), compile_and_run, [''])