testsuite: Add testcases from PR108292 and PR108308

These PRs were for now fixed by reversion of the r13-4977
patch, but so that the problems don't reappear during stage 1,
I'm adding testcase coverage from those PRs.

2023-01-06  Jakub Jelinek  <jakub@redhat.com>

	PR target/108292
	PR target/108308
	* gcc.c-torture/execute/pr108292.c: New test.
	* gcc.target/i386/pr108292.c: New test.
	* gcc.dg/pr108308.c: New test.

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr108292.c b/gcc/testsuite/gcc.c-torture/execute/pr108292.c
new file mode 100644 (file)
index 0000000..665724d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr108292.c
@@ -0,0 +1,18 @@
+/* PR target/108292 */
+
+typedef unsigned V __attribute__((__vector_size__ (64)));
+
+V x;
+
+int
+main ()
+{
+  if (sizeof (unsigned) * __CHAR_BIT__ != 32)
+    return 0;
+  __builtin_sub_overflow (0, 6, &x[5]);
+  x >>= ((V){} != x) & 31;
+  for (unsigned i = 0; i < 16; i++)
+    if (x[i] != (i == 5))
+      __builtin_abort ();
+  return 0;
+}

diff --git a/gcc/testsuite/gcc.dg/pr108308.c b/gcc/testsuite/gcc.dg/pr108308.c
new file mode 100644 (file)
index 0000000..c227626
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr108308.c
@@ -0,0 +1,39 @@
+/* PR target/108308 */
+/* { dg-do run { target { ilp32 || lp64 } } } */
+/* { dg-options "-Os -fno-tree-ccp" } */
+
+int a = 1, *d = &a, f = 2766708631, h;
+unsigned b = -1, c, e, g;
+
+static void
+foo (int j)
+{
+  if (a)
+    {
+      c = ~c;
+      while (e)
+       j = 0;
+      goto k;
+    }
+l:
+  h = 1;
+k:
+  *d = (!j) | 80;
+  int m = ~(~(-1 / b) | (a ^ 1)), n = ~(~g / (11 >> m)), o = -1 / n;
+  if (f)
+    {
+      b = 9518150474215344 ^ ~f;
+      f = 0;
+      if (c)
+       goto l;
+      if (o)
+       goto k;
+    }
+}
+
+int
+main ()
+{
+  foo (1);
+  return 0;
+}

diff --git a/gcc/testsuite/gcc.target/i386/pr108292.c b/gcc/testsuite/gcc.target/i386/pr108292.c
new file mode 100644 (file)
index 0000000..a28a643
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr108292.c
@@ -0,0 +1,15 @@
+/* PR target/108292 */
+/* { dg-do compile } */
+/* { dg-options "-Ofast -march=alderlake" } */
+
+extern void foo (float *);
+
+extern int x;
+
+int
+bar (void)
+{
+  float y;
+  foo (&y);
+  return y > x ? 1 : 2;
+}