diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20030613-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20030613-1.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20030613-1.c b/gcc/testsuite/gcc.c-torture/execute/20030613-1.c new file mode 100644 index 000000000..cb1623d96 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20030613-1.c @@ -0,0 +1,62 @@ +/* PR optimization/10955 */ +/* Originator: <heinrich.brand@fujitsu-siemens.com> */ + +/* This used to fail on SPARC32 at -O3 because the loop unroller + wrongly thought it could eliminate a pseudo in a loop, while + the pseudo was used outside the loop. */ + +extern void abort(void); + +#define COMPLEX struct CS + +COMPLEX { + long x; + long y; +}; + + +static COMPLEX CCID (COMPLEX x) +{ + COMPLEX a; + + a.x = x.x; + a.y = x.y; + + return a; +} + + +static COMPLEX CPOW (COMPLEX x, int y) +{ + COMPLEX a; + a = x; + + while (--y > 0) + a=CCID(a); + + return a; +} + + +static int c5p (COMPLEX x) +{ + COMPLEX a,b; + a = CPOW (x, 2); + b = CCID( CPOW(a,2) ); + + return (b.x == b.y); +} + + +int main (void) +{ + COMPLEX x; + + x.x = -7; + x.y = -7; + + if (!c5p(x)) + abort(); + + return 0; +} |