Hi!
This testcase started to hang at -O3 with r13-4208 and got fixed
with r14-2097.
Regtested on x86_64-linux and i686-linux, committed to trunk as obvious.
2024-01-17 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/110251
* gcc.c-torture/compile/pr110251.c: New test.
--- gcc/testsuite/gcc.c-torture/compile/pr110251.c.jj 2024-01-16
20:39:50.605210933 +0100
+++ gcc/testsuite/gcc.c-torture/compile/pr110251.c 2024-01-16
20:39:43.568310057 +0100
@@ -0,0 +1,27 @@
+/* PR tree-optimization/110251 */
+
+int a, b;
+signed char c;
+
+int
+foo (int e)
+{
+ if (e >= 'a')
+ return e;
+}
+
+int
+bar (unsigned short e)
+{
+ for (; e; a++)
+ e &= e - 1;
+}
+
+void
+baz (void)
+{
+ while (c < 1)
+ ;
+ for (; bar (c - 1); b = foo (c))
+ ;
+}
Jakub
