Thu, 14 Feb 2019 14:31:32 +0100
8087128: C2: Disallow definition split on MachCopySpill nodes
Reviewed-by: kvn
src/share/vm/opto/reg_split.cpp | file | annotate | diff | comparison | revisions |
1.1 --- a/src/share/vm/opto/reg_split.cpp Fri Jun 15 08:28:08 2018 -0700 1.2 +++ b/src/share/vm/opto/reg_split.cpp Thu Feb 14 14:31:32 2019 +0100 1.3 @@ -1171,9 +1171,8 @@ 1.4 (deflrg._direct_conflict || deflrg._must_spill)) || 1.5 // Check for LRG being up in a register and we are inside a high 1.6 // pressure area. Spill it down immediately. 1.7 - (defup && is_high_pressure(b,&deflrg,insidx))) ) { 1.8 + (defup && is_high_pressure(b,&deflrg,insidx) && !n->is_SpillCopy())) ) { 1.9 assert( !n->rematerialize(), "" ); 1.10 - assert( !n->is_SpillCopy(), "" ); 1.11 // Do a split at the def site. 1.12 maxlrg = split_DEF( n, b, insidx, maxlrg, Reachblock, debug_defs, splits, slidx ); 1.13 // If it wasn't split bail