aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c
new file mode 100644
index 000000000..7a022eac8
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr48335-1.c
@@ -0,0 +1,48 @@
+/* PR middle-end/48335 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-tree-sra" } */
+
+typedef long long T __attribute__((may_alias));
+
+struct S
+{
+ _Complex float d __attribute__((aligned (8)));
+};
+
+void bar (struct S);
+
+void
+f1 (T x)
+{
+ struct S s;
+ *(T *) &s.d = x;
+ __real__ s.d *= 7.0;
+ bar (s);
+}
+
+void
+f2 (int x)
+{
+ struct S s = { .d = 0.0f };
+ *(char *) &s.d = x;
+ __real__ s.d *= 7.0;
+ bar (s);
+}
+
+void
+f3 (int x)
+{
+ struct S s = { .d = 0.0f };
+ ((char *) &s.d)[2] = x;
+ __real__ s.d *= 7.0;
+ bar (s);
+}
+
+void
+f4 (int x, int y)
+{
+ struct S s = { .d = 0.0f };
+ ((char *) &s.d)[y] = x;
+ __real__ s.d *= 7.0;
+ bar (s);
+}