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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [libmudflap/] [testsuite/] [libmudflap.c/] [pass53-frag.c] - Rev 165
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int foo1 () { union { int l; char c[sizeof (int)]; } k1; char *m; k1.l = 0; /* This test variant triggers ADDR_EXPR of k explicitly in order to ensure it's registered with the runtime. */ m = k1.c; k1.c [sizeof (int)-1] = m[sizeof (int)-2]; } int foo2 () { union { int l; char c[sizeof (int)]; } k2; k2.l = 0; /* Since this access is known-in-range, k need not be registered with the runtime, but then this access better not be instrumented either. */ k2.c [sizeof (int)-1] ++; return k2.l; } int foo3idx = sizeof (int)-1; int foo3 () { union { int l; char c[sizeof (int)]; } k3; k3.l = 0; /* NB this test uses foo3idx, an extern variable, to defeat mudflap known-in-range-index optimizations. */ k3.c [foo3idx] ++; return k3.l; } int main () { foo1 (); foo2 (); foo3 (); return 0; }
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