1 files changed, 69 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/attr-assume-1.c b/gcc/testsuite/gcc.dg/attr-assume-1.c
new file mode 100644
index 0000000..16e919e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/attr-assume-1.c
@@ -0,0 +1,69 @@
+/* Portable assumptions */
+/* { dg-do run } */
+/* { dg-options "-std=c2x" } */
+
+int
+f1 (int i)
+{
+  [[gnu::assume (i == 42)]];
+  return i;
+}
+
+int
+f2 (int i)
+{
+  __attribute__ ((assume (++i == 44)));
+  return i;
+}
+
+int a;
+int *volatile c;
+
+int
+f3 ()
+{
+  ++a;
+  return 1;
+}
+
+int
+f4 (double x)
+{
+  [[gnu::assume (__builtin_isfinite (x) && x >= 0.0)]];
+  return __builtin_isfinite (__builtin_sqrt (x));
+}
+
+double
+f5 (double x)
+{
+  __attribute__((assume (__builtin_isfinite (__builtin_sqrt (x)))));
+  return __builtin_sqrt (x);
+}
+
+int
+f6 (int x)
+{
+  [[gnu::assume (x == 93 ? 1 : 0)]];
+  return x;
+}
+
+int
+main ()
+{
+  int b = 42;
+  double d = 42.0, e = 43.0;
+  c = &b;
+  [[__gnu__::__assume__ (f3 ())]];
+  if (a)
+    __builtin_abort ();
+  [[gnu::assume (++b == 43)]];
+  if (b != 42 || *c != 42)
+    __builtin_abort ();
+  __attribute__((assume (d < e)));
+  int i = 90, j = 91, k = 92;
+  [[gnu::__assume__ (i == 90), gnu::assume (j <= 91)]] [[gnu::assume (k >= 92)]]
+  ;
+  __attribute__((__assume__ (i == 90), assume (j <= 91))) __attribute__((assume (k >= 92)));
+  if (f6 (93) != 93)
+    __builtin_abort ();
+}