From: Jan Hubicka <jh@suse.cz>
Date: Mon, 13 Dec 2021 08:38:53 +0000 (+0100)
Subject: Do not ICE on ternary expressions when calculating value ranges
X-Git-Tag: basepoints/gcc-13~2392
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b61f06b2e1e7e72fcb6c0cf3590cb25eb92c4f2;p=thirdparty%2Fgcc.git

Do not ICE on ternary expressions when calculating value ranges

gcc/ChangeLog:

2021-12-12  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/103513
	* ipa-fnsummary.c (evaluate_conditions_for_known_args): Do not ICE
	on ternary expression.

gcc/testsuite/ChangeLog:

2021-12-12  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/103513
	* gcc.c-torture/compile/pr103513.c: New test.
---

diff --git a/gcc/ipa-fnsummary.c b/gcc/ipa-fnsummary.c
index 6c1cdf17e47b..cb3c198ec0cc 100644
--- a/gcc/ipa-fnsummary.c
+++ b/gcc/ipa-fnsummary.c
@@ -513,7 +513,7 @@ evaluate_conditions_for_known_args (struct cgraph_node *node,
 					      op->index ? &vr : &op0);
 		    }
 		  else
-		    gcc_unreachable ();
+		    res.set_varying (op->type);
 		  type = op->type;
 		  vr = res;
 		}
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr103513.c b/gcc/testsuite/gcc.c-torture/compile/pr103513.c
new file mode 100644
index 000000000000..ca876a9816c3
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr103513.c
@@ -0,0 +1,8 @@
+int a;
+void b(int c) {
+  int d = 3;
+  d ^= c < 2;
+  if (d < 3 && a)
+    while (1)
+      b(!a);
+}