Subzero: Generate a web page showing llvm2ice size breakdown.

Makefile.standalone

 # The following variables will likely need to be modified, depending on where
 # and how you built LLVM & Clang. They can be overridden in a command-line
 # invocation of make, like:
 #
 #   make LLVM_SRC_PATH=<path> LLVM_BIN_PATH=<path> \
 #        LIBCXX_INSTALL_PATH=<path> CLANG_PATH=<path> ...
 #
 
 # LLVM_SRC_PATH is the path to the root of the checked out source code. This
 # directory should contain the configure script, the include/ and lib/
@@ skipping 134 matching lines @@
 
 # Creates symbolic link so that testing is easier. Also runs
 # llvm2ice to verify that the defines flags have valid values,
 # as well as describe the corresponding build attributes.
 make_symlink: $(OBJDIR)/llvm2ice
         rm -rf llvm2ice
         ln -s $(OBJDIR)/llvm2ice
         @echo "Build Attributes:"
         @$(OBJDIR)/llvm2ice --build-atts
 
-.PHONY: all make_symlink
+.PHONY: all make_symlink bloat
 
 # TODO(kschimpf): Fix python scripts to directly get build attributes
 # rather than generating $(OBJDIR)/llvm2ice.build_atts.
 $(OBJDIR)/llvm2ice: $(OBJS)
         $(CXX) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) \
                -Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)
 
 # TODO(stichnot): Be more precise than "*.h" here and elsewhere.
 $(OBJS): $(OBJDIR)/%.o: src/%.cpp src/*.h src/*.def
         $(CXX) -c $(CXXFLAGS) $< -o $@
@@ skipping 41 matching lines @@
 format:
         $(LLVM_BIN_PATH)/clang-format -style=LLVM -i \
         `find . -regex '.*\.\(c\|h\|cpp\)' $(FORMAT_BLACKLIST)`
 
 format-diff:
         git diff -U0 `git merge-base HEAD master` | \
         PATH=$(LLVM_BIN_PATH):$(PATH) \
         $(LLVM_SRC_PATH)/../clang/tools/clang-format/clang-format-diff.py \
         -p1 -style=LLVM -i
 
+bloat: make_symlink
+        nm -C -S -l llvm2ice | \
+        bloat/bloat.py --nm-output=/dev/stdin syms > llvm2ice.bloat.json
+        @echo See Subzero size breakdown in bloat/llvm2ice.bloat.html

[JF, 2015/02/12 19:27:41]

Won't that pollute the src directory, instead of the out directory?

[Jim Stichnoth, 2015/02/12 21:06:14]

No, at least not in the way that I think you're thinking.  (dawg.)

llvm2ice.bloat.html is the fixed file.  llvm2ice.bloat.json goes into the
top-level directory, polluting the src directory in the same way that the
llvm2ice symlink pollutes (or doesn't pollute) it.

Ideally, the json file would go into $(OBJDIR) and there would be some way for
the html file to locate one or all of the json files, but:
1. I have no clue
2. The web part is just a personal developer tool.
3. For the bots, we'll probably just collect the json files over time for a
single build type.

+
 clean:
-        rm -rf llvm2ice *.o $(OBJDIR)
+        rm -rf llvm2ice *.o $(OBJDIR) llvm2ice.bloat.json
 
 clean-all: clean
         rm -rf build/