/* { dg-do compile } */ /* { dg-require-effective-target powerpc_prefixed_addr } */ /* { dg-require-effective-target lp64 } */ /* { dg-options "-O2 -mdejagnu-cpu=power10" } */ /* Make sure that we don't generate a prefixed form of the load and store with update instructions (i.e. instead of generating LWZU we have to generate PLWZ plus a PADDI). */ #ifndef SIZE #define SIZE 50000 #endif struct foo { unsigned int field; char pad[SIZE]; }; struct foo *inc_load (struct foo *p, unsigned int *q) { *q = (++p)->field; /* PLWZ, PADDI, STW. */ return p; } struct foo *dec_load (struct foo *p, unsigned int *q) { *q = (--p)->field; /* PLWZ, PADDI, STW. */ return p; } struct foo *inc_store (struct foo *p, unsigned int *q) { (++p)->field = *q; /* LWZ, PADDI, PSTW. */ return p; } struct foo *dec_store (struct foo *p, unsigned int *q) { (--p)->field = *q; /* LWZ, PADDI, PSTW. */ return p; } /* { dg-final { scan-assembler-times {\mlwz\M} 2 } } */ /* { dg-final { scan-assembler-times {\mstw\M} 2 } } */ /* { dg-final { scan-assembler-times {\mpaddi\M} 4 } } */ /* { dg-final { scan-assembler-times {\mplwz\M} 2 } } */ /* { dg-final { scan-assembler-times {\mpstw\M} 2 } } */ /* { dg-final { scan-assembler-not {\mplwzu\M} } } */ /* { dg-final { scan-assembler-not {\mpstwu\M} } } */ /* { dg-final { scan-assembler-not {\maddis\M} } } */ /* { dg-final { scan-assembler-not {\maddi\M} } } */