hg: jdk/sandbox: 8214352: C1: Unnecessary "compilation bailout: block join failed" with JVMTI

[chris.hegarty at oracle.com]

Changeset: b3830528df29
Author:    mdoerr
Date:      2018-12-14 09:59 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/b3830528df29

8214352: C1: Unnecessary "compilation bailout: block join failed" with JVMTI
Summary: Invalidate Phi functions for conflicting types and avoid bailout.
Reviewed-by: kvn, iveresov

! src/hotspot/share/c1/c1_Instruction.cpp
! src/hotspot/share/c1/c1_LIRGenerator.cpp
! src/hotspot/share/c1/c1_LinearScan.cpp
! src/hotspot/share/c1/c1_ValueStack.hpp