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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [builtins/] [20010124-1-lib.c] - Diff between revs 149 and 154

Rev 149	Rev 154
`/* Verify that structure return doesn't invoke memcpy on`	`/* Verify that structure return doesn't invoke memcpy on`
`overlapping objects. */`	`overlapping objects. */`

`extern void abort (void);`	`extern void abort (void);`
`extern int inside_main;`	`extern int inside_main;`
`typedef __SIZE_TYPE__ size_t;`	`typedef __SIZE_TYPE__ size_t;`

`struct S {`	`struct S {`
`char stuff[1024];`	`char stuff[1024];`
`};`	`};`

`union U {`	`union U {`
`struct {`	`struct {`
`int space;`	`int space;`
`struct S s;`	`struct S s;`
`} a;`	`} a;`
`struct {`	`struct {`
`struct S s;`	`struct S s;`
`int space;`	`int space;`
`} b;`	`} b;`
`};`	`};`

`struct S f(struct S *p)`	`struct S f(struct S *p)`
`{`	`{`
`return *p;`	`return *p;`
`}`	`}`

`void g(union U *p)`	`void g(union U *p)`
`{`	`{`
`}`	`}`

`void memcpy(void a, const void *b, size_t len)`	`void memcpy(void a, const void *b, size_t len)`
`{`	`{`
`if (inside_main)`	`if (inside_main)`
`{`	`{`
`if (a < b && a+len > b)`	`if (a < b && a+len > b)`
`abort ();`	`abort ();`
`if (b < a && b+len > a)`	`if (b < a && b+len > a)`
`abort ();`	`abort ();`
`return a;`	`return a;`
`}`	`}`
`else`	`else`
`{`	`{`
`char dst = (char ) a;`	`char dst = (char ) a;`
`const char src = (const char ) b;`	`const char src = (const char ) b;`
`while (len--)`	`while (len--)`
`dst++ = src++;`	`dst++ = src++;`
`return a;`	`return a;`
`}`	`}`
`}`	`}`