hg: jdk7u/jdk7u4/hotspot: 4 new changesets

[john.coomes at oracle.com]

Changeset: 7c99c217cc89
Author:    amurillo
Date:      2012-03-30 13:25 -0700
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u4/hotspot/rev/7c99c217cc89

7158135: new hotspot build - hs23-b21
Reviewed-by: jcoomes

! make/hotspot_version

Changeset: 34fce1d343b0
Author:    iveresov
Date:      2012-04-07 12:29 -0700
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u4/hotspot/rev/34fce1d343b0

7159766: Tiered compilation causes performance regressions
Summary: Disable tiered in 7u4 because of the performance anomalies with Oracle FMW
Reviewed-by: never, kvn

! src/cpu/sparc/vm/c2_globals_sparc.hpp
! src/cpu/x86/vm/c2_globals_x86.hpp

Changeset: bf81dbf47dec
Author:    jcoomes
Date:      2012-04-10 14:43 -0700
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u4/hotspot/rev/bf81dbf47dec

Added tag hs23-b21 for changeset 34fce1d343b0

! .hgtags

Changeset: ad6f5eaa165e
Author:    jcoomes
Date:      2012-04-10 16:54 -0700
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u4/hotspot/rev/ad6f5eaa165e

Merge

! .hgtags
! make/hotspot_version