111 Commits

Author SHA1 Message Date
Vladimir Kozlov
76035424de 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions.

Reviewed-by: never, rasbold
2008-05-21 13:46:23 -07:00
Vladimir Kozlov
757229db71 6695810: null oop passed to encode_heap_oop_not_null
Fix several problems in C2 related to Escape Analysis and Compressed Oops.

Reviewed-by: never, jrose
2008-05-21 10:45:07 -07:00
Vladimir Kozlov
69155d87f9 6689060: Escape Analysis does not work with Compressed Oops
64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)

Reviewed-by: never, sgoldman
2008-04-23 11:20:36 -07:00
Coleen Phillimore
4a831d45f0 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
2008-04-13 17:43:42 -04:00
Chuck Rasbold
1659f11da6 Merge 2008-04-03 06:41:16 -07:00
Vladimir Kozlov
ccaa58c5db 6681577: PIT: some VM tests fails with -XX:+AggressiveOpts in 6u5p b01
C2 spends > 60% in escape analysis code during test nsk/regression/b4675027.

Reviewed-by: never
2008-04-02 16:59:37 -07:00
Vladimir Kozlov
fb63e29743 6679854: assert in escape.cpp:397
The assert misses the case CastX2P 'base' for an unsafe field reference

Reviewed-by: never, jrose
2008-03-27 09:12:54 -07:00
Vladimir Kozlov
fc0117cb9a 6674588: (Escape Analysis) Improve Escape Analysis code
Current EA code has several problems which have to be fixed.

Reviewed-by: jrose, sgoldman
2008-03-14 15:26:33 -07:00
Vladimir Kozlov
277c3322f6 6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation
Cloning an allocation will not allow scalar replacement since memory operations could not be associated with one allocation.

Reviewed-by: rasbold
2008-03-06 10:53:33 -08:00
Vladimir Kozlov
bf7f5e1887 6667610: (Escape Analysis) retry compilation without EA if it fails
During split unique types EA could exceed nodes limit and fail the method compilation.

Reviewed-by: rasbold
2008-03-06 10:30:17 -08:00
J. Duke
8153779ad3 Initial load 2007-12-01 00:00:00 +00:00