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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [pr27959.c] - Rev 856
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/* PR middle-end/27959 */ /* { dg-do run } */ /* { dg-options "-O2" } */ /* { dg-options "-O2 -mtune=z990" { target s390*-*-* } } */ extern void abort (void); struct B { unsigned int b1, b2, b3; char b4; }; struct C { char c1; }; struct D { char *d1; struct C **d2; unsigned int d3; }; void __attribute__((noinline)) foo (void *x, struct B *y, unsigned int *z) { if (x) abort (); if (y->b1 != 7 || y->b2 != 5 || y->b3 != 3 || y->b4) abort (); if (*z != 2) abort (); } int __attribute__((noinline)) baz (unsigned int *x, unsigned int y) { asm volatile ("" : : "r" (&x), "r" (&y) : "memory"); return *x + y; } inline int bar (unsigned int *x, unsigned int y) { if (y < *x) return 0; return baz (x, y); } unsigned int * __attribute__((noinline)) test (struct D *x, unsigned int *y) { struct B b; unsigned int c; bar (y, x->d3); if ((*(x->d2))->c1) c = ((unsigned char) x->d1[0] + ((unsigned char) x->d1[1] << 8) + ((unsigned char) x->d1[2] << 16) + ((short) x->d1[3] << 24)); else { int d; ((char *) &d)[0] = x->d1[0]; ((char *) &d)[1] = x->d1[1]; ((char *) &d)[2] = x->d1[2]; ((char *) &d)[3] = x->d1[3]; c = d; } b.b4 = 0; b.b1 = c / 10000L % 10000; b.b2 = c / 100 % 100; b.b3 = c % 100; foo (0, &b, y); return y; } int main (void) { unsigned int x = 900070503; unsigned int y = 2; struct C c = { 0 }, *cptr = &c; struct D d = { (char *) &x, &cptr, 0 }; if (test (&d, &y) != &y) abort (); return 0; }
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