* [PATCH] Add a testcase for PR tree-optimization/102892
@ 2021-11-10 19:26 H.J. Lu
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From: H.J. Lu @ 2021-11-10 19:26 UTC (permalink / raw)
To: gcc-patches
PR tree-optimization/102892 is fixed by
commit 4b3a325f07acebf47e82de227ce1d5ba62f5bcae
Author: Aldy Hernandez <aldyh@redhat.com>
Date: Thu Oct 28 15:35:21 2021 +0200
Remove VRP threader passes in exchange for better threading pre-VRP.
* gcc.dg/pr102892-1.c: New file.
* gcc.dg/pr102892-2.c: Likewise.
---
gcc/testsuite/gcc.dg/pr102892-1.c | 21 +++++++++++++++++++++
gcc/testsuite/gcc.dg/pr102892-2.c | 7 +++++++
2 files changed, 28 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/pr102892-1.c
create mode 100644 gcc/testsuite/gcc.dg/pr102892-2.c
diff --git a/gcc/testsuite/gcc.dg/pr102892-1.c b/gcc/testsuite/gcc.dg/pr102892-1.c
new file mode 100644
index 00000000000..a9302b536df
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr102892-1.c
@@ -0,0 +1,21 @@
+/* { dg-do link } */
+/* { dg-options "-O3" } */
+/* { dg-additional-sources "pr102892-2.c" } */
+
+static long b[2][1] = {0};
+
+extern void bar(void);
+extern void foo(void);
+
+int
+main ()
+{
+ long c = 0;
+ for (long a; a < 1; ++a)
+ for (; c <= 1; c++) {
+ bar();
+ if (1 == b[c][0])
+ foo();
+ }
+ return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/pr102892-2.c b/gcc/testsuite/gcc.dg/pr102892-2.c
new file mode 100644
index 00000000000..b39bd6c97b3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr102892-2.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-O3" } */
+
+void
+bar (void)
+{
+}
--
2.33.1
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