[PATCH v2 4/5] testsuite: pru: Add clobber test

[Dimitar Dimitrov]

gcc/testsuite/ChangeLog:

2020-05-03  Dimitar Dimitrov  <dimi...@dinux.eu>

        * gcc.target/pru/clobber-sp.c: New test.

Signed-off-by: Dimitar Dimitrov <dimi...@dinux.eu>
---
 gcc/testsuite/gcc.target/pru/clobber-sp.c | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/pru/clobber-sp.c

diff --git a/gcc/testsuite/gcc.target/pru/clobber-sp.c 
b/gcc/testsuite/gcc.target/pru/clobber-sp.c
new file mode 100644
index 00000000000..3cc0a60bfc9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/pru/clobber-sp.c
@@ -0,0 +1,24 @@
+/* Test inline ASM clobber for SP register */
+
+/* { dg-do compile } */
+/* { dg-options "-O1" } */
+
+/* -O1 in the options is significant.  */
+
+extern void abort (void);
+
+int
+test1 (void)
+{
+  int res;
+
+  /* { dg-warning "listing the stack pointer register 'sp' in a clobber list 
is deprecated" "" { target pru-*-* } .+2 } */
+  /* { dg-message "note: the value of the stack pointer after an 'asm' 
statement must be the same as it was before the statement" "" { target pru-*-* 
} .+1 } */
+  asm volatile(
+              "ldi     %[res], 101             \n\t"
+              : [res] "=r" (res)
+              :
+              : "sp");
+
+  return res;
+}
-- 
2.20.1