svn merge -r274943:278492 svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-9-branchredhat/gcc-9-branch

git-svn-id: https://gcc.gnu.org/svn/gcc/branches/redhat/gcc-9-branch@278493 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 36 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20190901-1.c b/gcc/testsuite/gcc.c-torture/execute/20190901-1.c
new file mode 100644
index 00000000000..c78715ef2c1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20190901-1.c
@@ -0,0 +1,36 @@
+/* PR target/91472 */
+/* Reported by John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> */
+
+typedef unsigned int gmp_uint_least32_t;
+
+union ieee_double_extract
+{
+  struct
+    {
+      gmp_uint_least32_t sig:1;
+      gmp_uint_least32_t exp:11;
+      gmp_uint_least32_t manh:20;
+      gmp_uint_least32_t manl:32;
+    } s;
+  double d;
+};
+
+double __attribute__((noipa))
+tests_infinity_d (void)
+{
+  union ieee_double_extract x;
+  x.s.exp = 2047;
+  x.s.manl = 0;
+  x.s.manh = 0;
+  x.s.sig = 0;
+  return x.d;
+}
+
+int
+main (void)
+{
+  double x = tests_infinity_d ();
+  if (x == 0.0)
+    __builtin_abort ();
+  return 0;
+}