aboutsummaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c')
-rw-r--r--gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c b/gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c
new file mode 100644
index 0000000..1efd245
--- /dev/null
+++ b/gcc/testsuite/gcc.target/s390/stack-protector-guard-tls-1.c
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fstack-protector-all" } */
+/* { dg-final { scan-assembler-times {\tear\t%r[0-9]+,%a[01]} 8 { target lp64 } } } */
+/* { dg-final { scan-assembler-times {\tsllg\t%r[0-9]+,%r[0-9]+,32} 4 { target lp64 } } } */
+/* { dg-final { scan-assembler-times {\tear\t%r[0-9]+,%a[01]} 3 { target { ! lp64 } } } } */
+/* { dg-final { scan-assembler-times {\tmvc\t160\(8,%r15\),40\(%r[0-9]+\)} 2 { target lp64 } } } */
+/* { dg-final { scan-assembler-times {\tmvc\t100\(4,%r15\),20\(%r[0-9]+\)} 2 { target { ! lp64 } } } } */
+/* { dg-final { scan-assembler-times {\tclc\t160\(8,%r15\),40\(%r[0-9]+\)} 2 { target lp64 } } } */
+/* { dg-final { scan-assembler-times {\tclc\t100\(4,%r15\),20\(%r[0-9]+\)} 2 { target { ! lp64 } } } } */
+
+/* Computing the address of the thread pointer on s390 involves multiple
+ instructions and therefore bears the risk that the address of the canary or
+ intermediate values of it are spilled and reloaded. Therefore, as a
+ precaution compute the address always twice, i.e., one time for the prologue
+ and one time for the epilogue. */
+
+void test_0 (void) { }
+
+void test_1 (void)
+{
+ __asm__ __volatile ("" :::
+ "r0",
+ "r1",
+ "r2",
+ "r3",
+ "r4",
+ "r5",
+ "r6",
+ "r7",
+ "r8",
+ "r9",
+ "r10",
+ "r11",
+#ifndef __PIC__
+ "r12",
+#endif
+ "r13",
+ "r14");
+}