@@ -3965,7 +3965,7 @@ arc_expand_epilogue (int sibcall_p)
if (size)
emit_insn (gen_blockage ());
- if (ARC_INTERRUPT_P (fn_type) && restore_fp)
+ if (ARC_INTERRUPT_P (fn_type))
{
/* We need to restore FP before any SP operation in an
interrupt. */
new file mode 100644
@@ -0,0 +1,15 @@
+/* { dg-options "-O2" } */
+
+extern int foo (int *);
+
+void __attribute__((interrupt("ilink")))
+irq (void)
+{
+ struct {
+ int x0;
+ int x1;
+ } a = {1 ,2};
+ foo ((int *)&a);
+}
+
+/* { dg-final { scan-assembler "add_s\\s+sp,sp,8.*pop_s\\s+r0" } } */
The stack pointer adjustment in interrupt epilogue is happening after restoring the ZOL registers which is wrong. Fixing this. gcc/ * config/arc/arc.cc (arc_expand_epilogue): Adjust the frame pointer first when in interrupts. gcc/testsuite/ * gcc.target/arc/interrupt-13.c: New file. Signed-off-by: Claudiu Zissulescu <claziss@gmail.com> --- gcc/config/arc/arc.cc | 2 +- gcc/testsuite/gcc.target/arc/interrupt-13.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.target/arc/interrupt-13.c