1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-popcount-11.c b/gcc/testsuite/gcc.dg/fold-popcount-11.c
new file mode 100644
index 0000000..e59be00
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fold-popcount-11.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+int foo(unsigned short x)
+{
+  unsigned short t1 = __builtin_bswap16(x);
+  unsigned int t2 = t1;
+  return __builtin_popcount (t2);
+}
+
+int fool(unsigned short x)
+{
+  unsigned short t1 = __builtin_bswap16(x);
+  unsigned long t2 = t1;
+  return __builtin_popcountl (t2);
+}
+
+int fooll(unsigned short x)
+{
+  unsigned short t1 = __builtin_bswap16(x);
+  unsigned long long t2 = t1;
+  return __builtin_popcountll (t2);
+}
+
+/* { dg-final { scan-tree-dump-not "bswap" "optimized" } } */