diff options
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.c | 39 |
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"); +} |