8048879: "unexpected yanked node" opto/postaloc.cpp:139
Summary: MemBarAcquireNode prevents deletion of dead LoadNNode. Added condition to 'has_special_unique_user' to trigger deletion.
Reviewed-by: kvn, iveresov
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# Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# questions.
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# This was split out from Profiles.gmk to allow GenSrcMisc.gmk to include it
# without attempting to generate lists for output files that don't exist yet
# These are the external names of each profile
PROFILE_NAMES := compact1 compact2 compact3
# The include files use 1,2,3 for simplicity and conciseness. Internally we
# use profile_1, profile_2 and profile_3.
ALL_PROFILES := profile_1 profile_2 profile_3
# This defines targets to generate per-profile Version.java/class files into
# distinct locations
VERSION_JAVA_DIR := sun/misc
VERSION_JAVA_FILE := Version.java
VERSION_JAVA_PATH := $(VERSION_JAVA_DIR)/$(VERSION_JAVA_FILE)
VERSION_CLASS_PATH := $(VERSION_JAVA_PATH:.java=.class)
PROFILE_VERSION_JAVA_TARGETS := $(foreach i, $(ALL_PROFILES), $(subst XXX,$i, $(JDK_OUTPUTDIR)/gen_XXX/$(VERSION_JAVA_PATH)))
PROFILE_VERSION_CLASS_TARGETS := $(foreach i, $(PROFILE_VERSION_JAVA_TARGETS), $(i:.java=.class))
# Function to map from profile designator, profile_1 etc, to its number
profile_number = $(if $(patsubst profile_%,%, $(1)), $(patsubst profile_%,%, $(1)), $(words $(PROFILE_NAMES) extra))
# Function to map from profile number, 1, 2 etc, to the corresponding name
# An invalid number maps to an empty name
profile_name = $(word $(1), $(PROFILE_NAMES))
# Function to isolate a profile number from a Version.java target
# Evaluates to the arg if the arg is not a profile version target
profile_version_number = $(patsubst $(JDK_OUTPUTDIR)/gen_profile_%/$(VERSION_JAVA_PATH), %, $(1))
# Function to go from a profile Version.java target to profile name. If not
# a profile version target then we need a number that maps to an empty name
profile_version_name = $(word $(if $(filter-out $(call profile_version_number, $(1)), $(1)), $(call profile_version_number, $(1)), $(words $(PROFILE_NAMES) extra)), $(PROFILE_NAMES))