1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr42078.c b/gcc/testsuite/gcc.dg/pr42078.c
new file mode 100644
index 000000000..8107ff555
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr42078.c
@@ -0,0 +1,22 @@
+/* PR tree-optimization/42078 */
+/* { dg-do compile } */
+/* { dg-options "-g -O -ffast-math" } */
+
+double sqrt (double x);
+
+float
+foo (float x)
+{
+  float y = sqrt (x);
+  return x / y;
+}
+
+inline float
+bar (float x)
+{
+  float y = sqrt (x);
+  float a = y;
+  float b = y;
+  float c = y;
+  return x / y;
+}