hg: jdk/jdk: 2 new changesets

[christian.hagedorn at oracle.com]

Changeset: b4a8d0c9da88
Author:    chagedorn
Date:      2020-02-17 12:29 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/b4a8d0c9da88

8238765: PhaseCFG::schedule_pinned_nodes cannot handle precedence edges from unmatched CFG nodes correctly
Summary: Fix PhaseCFG::schedule_pinned_nodes to correctly handle precedence edges from unmatched CFG nodes.
Reviewed-by: roland, neliasso, kvn

! src/hotspot/share/opto/block.hpp
! src/hotspot/share/opto/gcm.cpp

Changeset: 6308389bdc83
Author:    chagedorn
Date:      2020-02-17 12:29 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/6308389bdc83

8239069: C2: SIGSEGV in IdealGraphPrinter::walk_nodes due to C->root() being NULL
Summary: Fix NULL pointer dereference when trying to print the ideal graph when Compile::record_failure() is called twice.
Reviewed-by: neliasso, thartmann

! src/hotspot/share/opto/idealGraphPrinter.cpp