[aarch64-port-dev ] git: openjdk/aarch64-port: master: 8259984: IGV: Crash when drawing control flow before GCM

[Roberto Castañeda Lozano]

Changeset: 61820b74
Author:    Roberto Castañeda Lozano <rcastanedalo at openjdk.org>
Date:      2021-02-19 08:18:32 +0000
URL:       https://git.openjdk.java.net/aarch64-port/commit/61820b74

8259984: IGV: Crash when drawing control flow before GCM

Replace backward traversal in the IGV block formation algorithm by forward
traversal guided by node category information. This change addresses the
reported assertion failures, places block projection nodes together with their
predecessors, and gives a more natural block numbering.

Reviewed-by: chagedorn, neliasso

! src/utils/IdealGraphVisualizer/ServerCompiler/src/com/sun/hotspot/igv/servercompiler/ServerCompilerScheduler.java