1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/loop-unswitch-3.c b/gcc/testsuite/gcc.dg/loop-unswitch-3.c
new file mode 100644
index 0000000..e355286
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/loop-unswitch-3.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-details" } */
+
+#include <stdlib.h>
+#define N 32
+float *foo(int ustride, int size, float *src)
+{
+   float *buffer, *p;
+   int i, k;
+
+   if (!src)
+    return NULL;
+
+   buffer = (float *) malloc(N * size * sizeof(float));
+
+   if(buffer)
+      for(i=0, p=buffer; i<N; i++, src+=ustride)
+	for(k=0; k<size; k++)
+	  *p++ = src[k];
+
+   return buffer;
+}
+
+/* { dg-final { scan-tree-dump-times "guard hoisted" 1 "unswitch" } } */
+
+