diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/s390/larl-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/s390/larl-1.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/s390/larl-1.c b/gcc/testsuite/gcc.target/s390/larl-1.c new file mode 100644 index 0000000..5ef2ef6 --- /dev/null +++ b/gcc/testsuite/gcc.target/s390/larl-1.c @@ -0,0 +1,32 @@ +/* Check if load-address-relative instructions are created */ + +/* { dg-do compile { target { s390*-*-* } } } */ +/* { dg-options "-O2 -march=z10 -mzarch -fno-section-anchors" } */ + +/* An explicitely misaligned symbol. This symbol is NOT aligned as + mandated by our ABI. However, the back-end needs to handle that in + order to make things like __attribute__((packed)) work. The symbol + address is expected to be loaded from literal pool. */ +/* { dg-final { scan-assembler "lgrl\t%r2," { target { lp64 } } } } */ +/* { dg-final { scan-assembler "lrl\t%r2," { target { ! lp64 } } } } */ +extern char align1 __attribute__((aligned(1))); + +/* { dg-final { scan-assembler "larl\t%r2,align2" } } */ +extern char align2 __attribute__((aligned(2))); + +/* { dg-final { scan-assembler "larl\t%r2,align4" } } */ +extern char align4 __attribute__((aligned(4))); + +/* An external char symbol without explicit alignment has a DECL_ALIGN + of just 8. In contrast to local definitions DATA_ABI_ALIGNMENT is + NOT applied to DECL_ALIGN in that case. Make sure the backend + still assumes this symbol to be aligned according to ABI + requirements. */ +/* { dg-final { scan-assembler "larl\t%r2,align_default" } } */ +extern char align_default; + +char * foo1 () { return &align1; } +char * foo2 () { return &align2; } +char * foo3 () { return &align4; } +char * foo4 () { return &align_default; } + |