scc

commit c0e9509336994bf4e7c5cf484ebe7ca374e4da81
parent 9ee4cece6aca3287438981fe8c6c10b274cc0bc2
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Fri, 12 Nov 2021 08:12:09 +0100

tests/cc: Add test 0186-dec-ary.c

This test is added to verify correctness of post operators
with operands containing side effects.

Diffstat:
A
tests/cc/execute/0186-dec-ary.c
 | 
23
+++++++++++++++++++++++
M
tests/cc/execute/scc-tests.lst
 | 
1
+

2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/tests/cc/execute/0186-dec-ary.c b/tests/cc/execute/0186-dec-ary.c
@@ -0,0 +1,23 @@
+struct node {
+	int index;
+};
+
+struct node nodes[2];
+
+int
+main(void)
+{
+	int d = 1, c;
+
+	d = 1;
+	c = nodes[--d].index++;
+	if (d != 0 || nodes[0].index != 1)
+		return 1;
+
+	d = -1;
+	c = nodes[++d].index--;
+	if (d != 0 || nodes[0].index != 0)
+		return 2;
+
+	return 0;
+}
diff --git a/tests/cc/execute/scc-tests.lst b/tests/cc/execute/scc-tests.lst
@@ -176,3 +176,4 @@
 0183-negenum.c
 0184-esc-macro.c
 0185-esc-macro2.c
+0186-dec-ary.c