diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/20020219-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/20020219-1.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/20020219-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/20020219-1.c new file mode 100644 index 000000000..d2ba755f5 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/20020219-1.c @@ -0,0 +1,50 @@ +/* PR c/4389 + This testcase failed because host_integerp (x, 0) was returning + 1 even for constants bigger than 2^31. It fails under under hppa + hpux without -mdisable-indexing because the pointer x - 1 is used + as the base address of an indexed load. Because the struct A is not + actually allocated, x - 1 lies in the text segment and this causes + the wrong space register to be selected for the load. It fails on + IA64 hpux in ILP32 mode because extending x - 1 before adding the + array offset gives a different answer then adding first and then + extending. The underlying problem is the same as with hppa, x - 1 is + not a legal data address. It also fails on x32 targets for the + same reason. */ +/* { dg-do run } */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -mdisable-indexing" { target hppa*-*-hpux* } } */ +/* { dg-skip-if "" { aarch64*-*-* && ilp32 } { "*" } { "" } } */ +/* { dg-skip-if "" { "ia64-*-hpux*" } "*" "-mlp64" } */ +/* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && x32 } { "*" } { "" } } */ + +/* Disable the test entirely for 16-bit targets. */ +#if __INT_MAX__ > 32767 + +extern void abort (void); +extern void exit (int); +struct A { + int a[10000][10000]; +}; +int b[2] = { 213151, 0 }; + +void foo (struct A *x, int y) +{ + if (x->a[9999][9999] != x->a[y][y]) + abort (); + if (x->a[9999][9999] != 213151) + abort (); +} + +int main (void) +{ + struct A *x; + asm ("" : "=r" (x) : "0" (&b[1])); + foo (x - 1, 9999); + exit (0); +} + +#else + +int main () { return 0; } + +#endif /* __INT_MAX__ */ |