From: Jeff Law <jlaw@ventanamicro.com>
Date: Wed, 24 Jul 2024 01:11:04 +0000 (-0600)
Subject: [PR rtl-optimization/115877][6/n] Add testcase from pr115877
X-Git-Tag: basepoints/gcc-16~7313
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f9a60d575f02822852aa22513c636be38f9c63ea;p=thirdparty%2Fgcc.git

[PR rtl-optimization/115877][6/n] Add testcase from pr115877

This just adds the testcase from pr115877.  It's working now on the trunk.  I'm
not done with cleanups/bugfixing, but there's no reason to not have the
testcase installed at this point.

	PR rtl-optimization/115877
gcc/testsuite
	* gcc.dg/torture/pr115877.c: New test.
---

diff --git a/gcc/testsuite/gcc.dg/torture/pr115877.c b/gcc/testsuite/gcc.dg/torture/pr115877.c
new file mode 100644
index 00000000000..432b1280b17
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr115877.c
@@ -0,0 +1,20 @@
+/* { dg-do run { target int128 } } */
+
+char a[16];
+unsigned short u;
+
+__int128
+foo (int i)
+{
+  i -= (unsigned short) ~u;
+  a[(unsigned short) i] = 1;
+  return i;
+}
+
+int
+main ()
+{
+  __int128 x = foo (0);
+  if (x != -0xffff)
+    __builtin_abort();
+}