x86: Check FUNCTION_DECL before calling cgraph_node::get
Commit Message
gcc/
PR target/103594
* config/i386/i386.c (ix86_call_use_plt_p): Check FUNCTION_DECL
before calling cgraph_node::get.
gcc/testsuite/
PR target/103594
* gcc.dg/pr103594.c: New test.
---
gcc/config/i386/i386.c | 3 ++-
gcc/testsuite/gcc.dg/pr103594.c | 14 ++++++++++++++
2 files changed, 16 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.dg/pr103594.c
Comments
On Tue, Dec 7, 2021 at 2:15 PM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> gcc/
>
> PR target/103594
> * config/i386/i386.c (ix86_call_use_plt_p): Check FUNCTION_DECL
> before calling cgraph_node::get.
>
> gcc/testsuite/
>
> PR target/103594
> * gcc.dg/pr103594.c: New test.
OK.
Thanks,
Uros.
> ---
> gcc/config/i386/i386.c | 3 ++-
> gcc/testsuite/gcc.dg/pr103594.c | 14 ++++++++++++++
> 2 files changed, 16 insertions(+), 1 deletion(-)
> create mode 100644 gcc/testsuite/gcc.dg/pr103594.c
>
> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
> index 52547b0f057..f1e41fd55f9 100644
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
> @@ -15987,7 +15987,8 @@ ix86_call_use_plt_p (rtx call_op)
> {
> if (SYMBOL_REF_LOCAL_P (call_op))
> {
> - if (SYMBOL_REF_DECL (call_op))
> + if (SYMBOL_REF_DECL (call_op)
> + && TREE_CODE (SYMBOL_REF_DECL (call_op)) == FUNCTION_DECL)
> {
> /* NB: All ifunc functions must be called via PLT. */
> cgraph_node *node
> diff --git a/gcc/testsuite/gcc.dg/pr103594.c b/gcc/testsuite/gcc.dg/pr103594.c
> new file mode 100644
> index 00000000000..0eae239eea0
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/pr103594.c
> @@ -0,0 +1,14 @@
> +/* { dg-do compile { target fpic } } */
> +/* { dg-options "-O1 -fpic" } */
> +
> +int regex_subst(void)
> +{
> + const void *subst = "";
> + return (*(int (*)(int))subst) (0);
> +}
> +
> +int foobar (void)
> +{
> + int x;
> + return (*(int (*)(void))&x) ();
> +}
> --
> 2.33.1
>
@@ -15987,7 +15987,8 @@ ix86_call_use_plt_p (rtx call_op)
{
if (SYMBOL_REF_LOCAL_P (call_op))
{
- if (SYMBOL_REF_DECL (call_op))
+ if (SYMBOL_REF_DECL (call_op)
+ && TREE_CODE (SYMBOL_REF_DECL (call_op)) == FUNCTION_DECL)
{
/* NB: All ifunc functions must be called via PLT. */
cgraph_node *node
new file mode 100644
@@ -0,0 +1,14 @@
+/* { dg-do compile { target fpic } } */
+/* { dg-options "-O1 -fpic" } */
+
+int regex_subst(void)
+{
+ const void *subst = "";
+ return (*(int (*)(int))subst) (0);
+}
+
+int foobar (void)
+{
+ int x;
+ return (*(int (*)(void))&x) ();
+}