[gcc r12-5272] testsuite: Add testcase for already fixed PR [PR100469]

[gcc r12-5272] testsuite: Add testcase for already fixed PR [PR100469]

[Jakub Jelinek]

https://gcc.gnu.org/g:b2e1ac548594c5f482b6e9e9cfa25f9cc090bf84

commit r12-5272-gb2e1ac548594c5f482b6e9e9cfa25f9cc090bf84
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Mon Nov 15 14:47:44 2021 +0100

    testsuite: Add testcase for already fixed PR [PR100469]
    
    This bug introduced in r11-7448-gff92ede8d269375f800e1b347a48f4698874b4a3
    has been fixed already by r12-1354-g2d2ed777b23ab6503027039e0adbfe1162f52b2f
    aka PR100852 fix.
    
    2021-11-15  Jakub Jelinek  <jakub@redhat.com>
    
            PR debug/100469
            * g++.dg/opt/pr100469.C: New test.

Diff:
---
 gcc/testsuite/g++.dg/opt/pr100469.C | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/gcc/testsuite/g++.dg/opt/pr100469.C b/gcc/testsuite/g++.dg/opt/pr100469.C
new file mode 100644
index 00000000000..9eb37e7fe8d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr100469.C
@@ -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);
+}