From 5fd2537b36d7ad32e9cb64ddf196105172f919f5 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 9 May 2023 12:14:18 +0200
Subject: [PATCH] testsuite: Add further testcase for already fixed PR
[PR109778]
I came up with a testcase which reproduces all the way to r10-7469.
LTO to avoid early inlining it, so that ccp handles rotates and not
shifts before they are turned into rotates.
2023-05-09 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/109778
* gcc.dg/lto/pr109778_0.c: New test.
* gcc.dg/lto/pr109778_1.c: New file.
(cherry picked from commit c2cf2dc988eb93551fa1c01d3f8d73ef21f39dc5)
---
gcc/testsuite/gcc.dg/lto/pr109778_0.c | 22 ++++++++++++++++++++++
gcc/testsuite/gcc.dg/lto/pr109778_1.c | 7 +++++++
2 files changed, 29 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/lto/pr109778_0.c
create mode 100644 gcc/testsuite/gcc.dg/lto/pr109778_1.c
diff --git a/gcc/testsuite/gcc.dg/lto/pr109778_0.c b/gcc/testsuite/gcc.dg/lto/pr109778_0.c
new file mode 100644
index 000000000000..3c6e1b8f7b7d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/lto/pr109778_0.c
@@ -0,0 +1,22 @@
+/* PR tree-optimization/109778 */
+/* { dg-lto-do run } */
+/* { dg-lto-options { "-O2 -flto" } } */
+/* { dg-require-effective-target int32 } */
+
+int bar (int);
+
+__attribute__((noipa)) int
+foo (int x)
+{
+ x = bar (x);
+ x = (x << 16) | (int) ((unsigned) x >> 16);
+ return x & 0x10000000;
+}
+
+int
+main ()
+{
+ if (foo (0) || foo (-1))
+ __builtin_abort ();
+ return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/lto/pr109778_1.c b/gcc/testsuite/gcc.dg/lto/pr109778_1.c
new file mode 100644
index 000000000000..d18a7209983e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/lto/pr109778_1.c
@@ -0,0 +1,7 @@
+int
+bar (int x)
+{
+ x &= 0x22222222;
+ x |= (int) 0xf1234567U;
+ return x;
+}
--
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