OpenJDK / jdk / jdk
changeset 53752:e44c436f2447
8087128: C2: Disallow definition split on MachCopySpill nodes
Reviewed-by: kvn
| author | neliasso |
|---|---|
| date | Thu, 14 Feb 2019 14:31:32 +0100 |
| parents | 22c78a512937 |
| children | 0040f89feb78 |
| files | src/hotspot/share/opto/reg_split.cpp |
| diffstat | 1 files changed, 1 insertions(+), 2 deletions(-) [+] |
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--- a/src/hotspot/share/opto/reg_split.cpp Thu Feb 14 12:54:56 2019 +0100 +++ b/src/hotspot/share/opto/reg_split.cpp Thu Feb 14 14:31:32 2019 +0100 @@ -1192,9 +1192,8 @@ (deflrg._direct_conflict || deflrg._must_spill)) || // Check for LRG being up in a register and we are inside a high // pressure area. Spill it down immediately. - (defup && is_high_pressure(b,&deflrg,insidx))) ) { + (defup && is_high_pressure(b,&deflrg,insidx) && !n->is_SpillCopy())) ) { assert( !n->rematerialize(), "" ); - assert( !n->is_SpillCopy(), "" ); // Do a split at the def site. maxlrg = split_DEF( n, b, insidx, maxlrg, Reachblock, debug_defs, splits, slidx ); // If it wasn't split bail