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-rw-r--r--gcc/testsuite/gcc.dg/visibility-11.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/visibility-11.c b/gcc/testsuite/gcc.dg/visibility-11.c
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+++ b/gcc/testsuite/gcc.dg/visibility-11.c
@@ -0,0 +1,26 @@
+/* PR middle-end/20297 */
+/* The memcpy FUNCTION_DECL built in the middle-end for block moves got
+ hidden visibility from the first push, so the call didn't use the PLT. */
+
+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-skip-if "" { *-*-darwin* } { "*" } { "" } } */
+/* { dg-require-visibility "" } */
+/* { dg-require-effective-target fpic } */
+/* { dg-options "-Os -fpic -mstringop-strategy=libcall" } */
+/* { dg-final { scan-assembler "memcpy@PLT" } } */
+
+#pragma GCC visibility push(hidden)
+#pragma GCC visibility push(default)
+extern void* memcpy (void *, const void *, __SIZE_TYPE__);
+#pragma GCC visibility pop
+
+struct a { int a[4096]; };
+
+extern void *bar (struct a *, struct a *, int);
+
+void *
+foo (struct a *a, struct a *b, int c)
+{
+ struct a cc = *b;
+ return bar (a, &cc, 4 * c);
+}