Hi!
This bug introduced in r11-7448-gff92ede8d269375f800e1b347a48f4698874b4a3
has been fixed already by r12-1354-g2d2ed777b23ab6503027039e0adbfe1162f52b2f
aka PR100852 fix.
Regtested on x86_64-linux -m32/-m64, committed to trunk (so far) as obvious.
2021-11-15 Jakub Jelinek <ja...@redhat.com>
PR debug/100469
* g++.dg/opt/pr100469.C: New test.
--- gcc/testsuite/g++.dg/opt/pr100469.C.jj 2021-11-15 14:44:46.796604198
+0100
+++ gcc/testsuite/g++.dg/opt/pr100469.C 2021-11-15 14:44:38.662715051 +0100
@@ -0,0 +1,32 @@
+// PR debug/100469
+// { dg-do compile }
+// { dg-options "-O2 -fcompare-debug -fno-tree-dse -fno-tree-forwprop
-fno-tree-tail-merge --param=sccvn-max-alias-queries-per-access=0" }
+
+struct S
+{
+ long m;
+ S (const S &s)
+ {
+ m = s.m;
+ }
+ S (long l)
+ {
+ m = l;
+ }
+ bool operatorX (const S &s)
+ {
+ return m >= s.m;
+ }
+};
+
+static inline S
+bar (S a, S b)
+{
+ return a.operatorX (b) ? a : b;
+}
+
+S
+foo (S s)
+{
+ return bar (s, (S) 0);
+}
Jakub
