diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/conaddr.ssa | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/conaddr.ssa b/test/conaddr.ssa new file mode 100644 index 0000000..3f0aba7 --- /dev/null +++ b/test/conaddr.ssa @@ -0,0 +1,65 @@ +# test amd64 addressing modes + +export +function w $f0(l %o) { +@start + %addr =l add $a, %o + %char =w loadub %addr + ret %char +} + +export +function w $f1(l %o) { +@start + %o1 =l mul %o, 1 + %addr =l add 10, %o1 + %char =w loadub %addr + ret %char +} + +export +function w $f2(l %o1, l %o2) { +@start + %o22 =l mul %o2, 2 + %o =l add %o1, %o22 + %addr =l add $a, %o + %char =w loadub %addr + ret %char +} + +export +function l $f3(l %o) { +@start + %addr =l add %o, $a + ret %addr +} + +export +function $writeto0() { +@start + storel 0, 0 + ret +} + +# >>> driver +# #include <stdlib.h> +# #include <signal.h> +# char a[] = "qbe rocks"; +# int ok = 1; +# extern unsigned f0(long), f1(long), f2(long, long); +# extern char *f3(long); +# extern void writeto0(); +# void h(int sig, siginfo_t *si, void *unused) { +# ok &= si->si_addr == 0; +# exit(!ok); +# } +# int main() { +# struct sigaction sa = {.sa_flags=SA_SIGINFO, .sa_sigaction=h}; +# sigemptyset(&sa.sa_mask); sigaction(SIGSEGV, &sa, 0); +# ok &= f0(2) == 'e'; +# ok &= f1((long)a-5) == 'o'; +# ok &= f2(4, 2) == 's'; +# ok &= *f3(0) == 'q'; +# writeto0(); /* will segfault */ +# } +# <<< |