This is introduced by r258390 and fixed by r258415.
I am checking in this patch to add a testcase for PR 84799.
H.J.
---
* gcc.dg/pr84799.c: New test.
---
gcc/testsuite/ChangeLog | 4 ++++
gcc/testsuite/gcc.dg/pr84799.c | 29 +++++++++++++++++++++++++++++
2 files changed, 33 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/pr84799.c
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c13747ad1b6..c7193069550 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2018-03-12 H.J. Lu <hongjiu...@intel.com>
+
+ * gcc.dg/pr84799.c: New test.
+
2018-03-12 Richard Biener <rguent...@suse.de>
PR tree-optimization/84803
diff --git a/gcc/testsuite/gcc.dg/pr84799.c b/gcc/testsuite/gcc.dg/pr84799.c
new file mode 100644
index 00000000000..2b3a48f9e34
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr84799.c
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-options "-O" } */
+
+int a, g;
+long b, f;
+short c, d, e;
+
+static void fn1 ()
+{
+ if (a)
+ {
+ long i = 5, j = b / i | c;
+ int k = b % (d % i) & j;
+ short l = ~f % (-d / j ^ -e), m = e << (d - l);
+ if (k)
+ m = d;
+ i = d | (i & b);
+ g = (c | ~f) % i + l;
+ e = (c - f) & e;
+ d = m;
+ }
+}
+
+int main ()
+{
+ b |= 1;
+ fn1 ();
+ return 0;
+}
--
2.14.3
