diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/s390/frame-addr1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/s390/frame-addr1.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/s390/frame-addr1.c b/gcc-4.9/gcc/testsuite/gcc.target/s390/frame-addr1.c new file mode 100644 index 000000000..fda419ff0 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/s390/frame-addr1.c @@ -0,0 +1,53 @@ +/* builtin_frame_address(n) with n>0 has always been troublesome ... + especially when the S/390 packed stack layout comes into play. */ + +/* { dg-do run } */ +/* { dg-options "-O3 -fno-optimize-sibling-calls -mbackchain -mpacked-stack -msoft-float" } */ + +#ifdef __s390x__ +/* 64bit: 3 words to be saved: backchain, r14 and r15 */ +#define SAVE_AREA_SIZE 3*8 +#else +/* 32bit: 4 words to be saved: backchain, r13, r14 and r15 */ +#define SAVE_AREA_SIZE 4*4 +#endif +extern void abort(void); + +#define EXPAND_CHECK(n) \ + void __attribute__((noinline)) \ + foo1_##n (void *p) \ + { \ + if (p - __builtin_frame_address (n) != SAVE_AREA_SIZE) \ + abort (); \ + } \ + void __attribute__((noinline)) \ + foo2_##n (void *p) \ + { \ + if (p - __builtin_frame_address (n) != SAVE_AREA_SIZE) \ + abort (); \ + foo1_##n (__builtin_frame_address (n)); \ + } \ + void __attribute__((noinline)) \ + foo3_##n () \ + { \ + foo2_##n (__builtin_frame_address (n)); \ + } \ + void __attribute__((noinline)) \ + foo4_##n () \ + { \ + foo3_##n (); \ + } + +EXPAND_CHECK (0) +EXPAND_CHECK (1) +EXPAND_CHECK (2) + +int +main () +{ + foo4_0 (); + foo4_1 (); + foo4_2 (); + + return 0; +} |