1 /* Check that shifts do not get unnecessary extends.
2 See PR66706 for a case where this failed. */
3
4 /* { dg-do compile } */
5 /* { dg-options "-O2" } */
6
7 /* Each function should compile to exactly two instructions. */
8 /* { dg-final { scan-assembler-times {(?n)^\s+[a-z]} 16 } } */
9 /* { dg-final { scan-assembler-times {(?n)^\s+blr} 8 } } */
10
11
12 typedef unsigned u;
13 typedef signed s;
14
rot(u x,u n)15 u rot(u x, u n) { return (x << n) | (x >> (32 - n)); }
shl(u x,u n)16 u shl(u x, u n) { return x << n; }
shr(u x,u n)17 u shr(u x, u n) { return x >> n; }
asr(s x,u n)18 s asr(s x, u n) { return x >> n; }
19
roti(u x)20 u roti(u x) { return (x << 23) | (x >> 9); }
shli(u x)21 u shli(u x) { return x << 23; }
shri(u x)22 u shri(u x) { return x >> 23; }
asri(s x)23 s asri(s x) { return x >> 23; }
24