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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [pr36902.c] - Rev 328
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/* PR middle-end/36902 Array bound warning with dead code after optimization */ /* { dg-do compile } */ /* { dg-options "-O2 -Warray-bounds -Wall -Wextra" } */ typedef unsigned char __u8; typedef unsigned short __u16; static inline unsigned char * foo(unsigned char * to, const unsigned char * from, int n) { switch ( n ) { case 3: *to = *from; break; case 5: to[4] = from [4]; break; } return to; } struct { int size_of_select; unsigned char pcr_select[4]; } sel; int bar(void) { static unsigned char buf[64]; sel.size_of_select = 3; foo(buf, sel.pcr_select, sel.size_of_select); return 1; } static inline unsigned char * foo2(unsigned char * to, const unsigned char * from, int n) { switch ( n ) { case 3: *to = *from; break; case 5: to[4] = from [4]; /* { dg-warning "20:array subscript is above array bounds" } */ break; } return to; } int baz(void) { static unsigned char buf[64]; sel.size_of_select = 5; foo2(buf, sel.pcr_select, sel.size_of_select); return 1; }
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