[gcc/devel/jlaw/crc] Addition in testsuit: - Added gcc/testsuite/gcc.dg/crc-misc.c test - In crc-26 added new check for "

[Jeff Law]

https://gcc.gnu.org/g:155ed5f338e4758618b27a82109dfe4ef671beb1

commit 155ed5f338e4758618b27a82109dfe4ef671beb1
Author: Mariam Arutunian <mariamarutunian@gmail.com>
Date:   Fri Jan 27 18:24:56 2023 +0400

    Addition in testsuit: - Added gcc/testsuite/gcc.dg/crc-misc.c test - In crc-26 added new check for "gencrc function calculates CRC" massage.

Diff:
---
 gcc/testsuite/gcc.dg/crc-26.c   |  3 ++-
 gcc/testsuite/gcc.dg/crc-misc.c | 23 +++++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.dg/crc-26.c b/gcc/testsuite/gcc.dg/crc-26.c
index 298fb39c375..9883190c886 100644
--- a/gcc/testsuite/gcc.dg/crc-26.c
+++ b/gcc/testsuite/gcc.dg/crc-26.c
@@ -25,4 +25,5 @@ uint8_t gencrc (uint8_t *data)
 /* { dg-final { scan-tree-dump "Loop iteration number is 7" "crc"} } */
 /* { dg-final { scan-tree-dump "Bit forward" "crc"} } */
 /* { dg-final { scan-tree-dump "Executing \[a-zA-Z_\]\[a-zA-Z0-9_\]* = \[a-zA-Z_\]\[a-zA-Z0-9_\]* \\\^ \[a-zA-Z0-9_\]+\(\\\(\[a-zA-Z\]\\\)\)?;" "crc" } } */
-/* { dg-final { scan-tree-dump "Executing \[a-zA-Z_\]\[a-zA-Z0-9_\]* = \[a-zA-Z_\]\[a-zA-Z0-9_\]* \(<<|>>\) \[0-9]+;" "crc" } } */
\ No newline at end of file
+/* { dg-final { scan-tree-dump "Executing \[a-zA-Z_\]\[a-zA-Z0-9_\]* = \[a-zA-Z_\]\[a-zA-Z0-9_\]* \(<<|>>\) \[0-9]+;" "crc" } } */
+/* { dg-final { scan-tree-dump "gencrc function calculates CRC." "crc"} } */
\ No newline at end of file
diff --git a/gcc/testsuite/gcc.dg/crc-misc.c b/gcc/testsuite/gcc.dg/crc-misc.c
new file mode 100644
index 00000000000..d2efacb6692
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/crc-misc.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-crc-details" } */
+
+#include <stdint.h>
+uint32_t _crc32(uint32_t crc, uint32_t data) {
+  int i;
+  crc = crc ^ data;
+
+  for (i = 0; i < 32; i++) {
+      if (crc & 0x80000000)
+	crc = (crc << 1) ^ 0x04C11DB7;
+      else
+	crc = (crc << 1);
+    }
+
+  return crc;
+}
+
+/* { dg-final { scan-tree-dump "_crc32 function maybe calculates CRC and returns it." "crc"} } */
+/* { dg-final { scan-tree-dump "Return size is 32" "crc"} } */
+/* { dg-final { scan-tree-dump "Loop iteration number is 31" "crc"} } */
+/* { dg-final { scan-tree-dump "Bit forward" "crc"} } */
+/* { dg-final { scan-tree-dump "_crc32 function calculates CRC." "crc"} } */
\ No newline at end of file