| Message ID | 20201117180305.2219957-1-acsawdey@linux.ibm.com |
|---|---|
| State | New |
| Headers | show |
| Series | [rs6000] Re-enable vector pair memcpy/memmove expansion | expand |
On Tue, Nov 17, 2020 at 12:03:05PM -0600, acsawdey@linux.ibm.com wrote: > From: Aaron Sawdey <acsawdey@linux.ibm.com> > > After the MMA opaque mode patch goes in, we can re-enable > use of vector pair in the inline expansion of memcpy/memmove. > > After bootstrap/regtest, OK for trunk? Yes, okay for trunk after the rs6000 "opaque" patch goes in. Thanks! Segher
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index bb48ed92aef..53f92970414 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -4117,11 +4117,10 @@ rs6000_option_override_internal (bool global_init_p) if (!(rs6000_isa_flags_explicit & OPTION_MASK_BLOCK_OPS_VECTOR_PAIR)) { - /* When the POImode issues of PR96791 are resolved, then we can - once again enable use of vector pair for memcpy/memmove on - P10 if we have TARGET_MMA. For now we make it disabled by - default for all targets. */ - rs6000_isa_flags &= ~OPTION_MASK_BLOCK_OPS_VECTOR_PAIR; + if (TARGET_MMA && TARGET_EFFICIENT_UNALIGNED_VSX) + rs6000_isa_flags |= OPTION_MASK_BLOCK_OPS_VECTOR_PAIR; + else + rs6000_isa_flags &= ~OPTION_MASK_BLOCK_OPS_VECTOR_PAIR; } /* Use long double size to select the appropriate long double. We use
From: Aaron Sawdey <acsawdey@linux.ibm.com> After the MMA opaque mode patch goes in, we can re-enable use of vector pair in the inline expansion of memcpy/memmove. After bootstrap/regtest, OK for trunk? Thanks, Aaron gcc/ * config/rs6000/rs6000.c (rs6000_option_override_internal): Enable vector pair memcpy/memmove expansion. --- gcc/config/rs6000/rs6000.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)