733a246386
The three different concerns that the ControlReducer used to deal with
are now properly separated into
a.) DeadCodeElimination, which is a regular AdvancedReducer, that
propagates Dead via control edges,
b.) CommonOperatorReducer, which does strength reduction on common
operators (i.e. Branch, Phi, and friends), and
c.) GraphTrimming, which removes dead->live edges from the graph.
This will make it possible to run the DeadCodeElimination together with
other passes that actually introduce Dead nodes, i.e. typed lowering;
and it opens the door for general inlining without two stage fix point
iteration.
To make the DeadCodeElimination easier and more uniform, we basically
reverted the introduction of DeadValue and DeadEffect, and changed the
Dead operator to produce control, value and effect. Note however that
this is not a requirement, but merely a way to make dead propagation
easier and more uniform. We could always go back and decide to have
different Dead operators if some other change requires that.
Note that there are several additional opportunities for cleanup now,
i.e. OSR deconstruction could be a regular reducer now, and we don't
need to use TheHole as dead value marker in the GraphReducer. And we can
actually run the dead code elimination together with the other passes
instead of using separate passes over the graph. We will do this in
follow up CLs.
R=jarin@chromium.org, mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1193833002
Cr-Commit-Position: refs/heads/master@{#29146}
320 lines
10 KiB
Python
320 lines
10 KiB
Python
# Copyright 2012 the V8 project authors. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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{
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'variables': {
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'v8_code': 1,
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'generated_file': '<(SHARED_INTERMEDIATE_DIR)/resources.cc',
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},
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'includes': ['../../build/toolchain.gypi', '../../build/features.gypi'],
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'targets': [
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{
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'target_name': 'cctest',
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'type': 'executable',
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'dependencies': [
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'resources',
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'../../tools/gyp/v8.gyp:v8_libplatform',
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],
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'include_dirs': [
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'../..',
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],
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'sources': [ ### gcmole(all) ###
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'<(generated_file)',
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'compiler/c-signature.h',
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'compiler/codegen-tester.cc',
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'compiler/codegen-tester.h',
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'compiler/function-tester.h',
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'compiler/graph-builder-tester.h',
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'compiler/simplified-graph-builder.cc',
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'compiler/simplified-graph-builder.h',
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'compiler/test-basic-block-profiler.cc',
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'compiler/test-branch-combine.cc',
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'compiler/test-changes-lowering.cc',
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'compiler/test-gap-resolver.cc',
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'compiler/test-graph-visualizer.cc',
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'compiler/test-instruction.cc',
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'compiler/test-js-context-specialization.cc',
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'compiler/test-js-constant-cache.cc',
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'compiler/test-js-typed-lowering.cc',
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'compiler/test-jump-threading.cc',
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'compiler/test-linkage.cc',
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'compiler/test-loop-assignment-analysis.cc',
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'compiler/test-loop-analysis.cc',
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'compiler/test-machine-operator-reducer.cc',
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'compiler/test-node.cc',
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'compiler/test-operator.cc',
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'compiler/test-osr.cc',
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'compiler/test-pipeline.cc',
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'compiler/test-representation-change.cc',
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'compiler/test-run-deopt.cc',
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'compiler/test-run-inlining.cc',
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'compiler/test-run-intrinsics.cc',
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'compiler/test-run-jsbranches.cc',
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'compiler/test-run-jscalls.cc',
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'compiler/test-run-jsexceptions.cc',
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'compiler/test-run-jsops.cc',
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'compiler/test-run-machops.cc',
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'compiler/test-run-properties.cc',
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'compiler/test-run-stackcheck.cc',
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'compiler/test-run-stubs.cc',
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'compiler/test-run-variables.cc',
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'compiler/test-simplified-lowering.cc',
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'cctest.cc',
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'gay-fixed.cc',
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'gay-precision.cc',
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'gay-shortest.cc',
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'print-extension.cc',
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'profiler-extension.cc',
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'test-accessors.cc',
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'test-alloc.cc',
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'test-api.cc',
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'test-api.h',
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'test-api-interceptors.cc',
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'test-array-list.cc',
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'test-ast.cc',
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'test-atomicops.cc',
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'test-bignum.cc',
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'test-bignum-dtoa.cc',
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'test-bit-vector.cc',
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'test-circular-queue.cc',
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'test-compiler.cc',
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'test-constantpool.cc',
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'test-conversions.cc',
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'test-cpu-profiler.cc',
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'test-date.cc',
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'test-debug.cc',
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'test-decls.cc',
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'test-deoptimization.cc',
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'test-dictionary.cc',
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'test-diy-fp.cc',
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'test-double.cc',
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'test-dtoa.cc',
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'test-fast-dtoa.cc',
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'test-feedback-vector.cc',
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'test-fixed-dtoa.cc',
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'test-flags.cc',
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'test-func-name-inference.cc',
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'test-gc-tracer.cc',
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'test-global-handles.cc',
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'test-global-object.cc',
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'test-hashing.cc',
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'test-hashmap.cc',
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'test-heap.cc',
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'test-heap-profiler.cc',
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'test-hydrogen-types.cc',
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'test-identity-map.cc',
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'test-list.cc',
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'test-liveedit.cc',
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'test-lockers.cc',
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'test-log.cc',
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'test-microtask-delivery.cc',
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'test-mark-compact.cc',
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'test-mementos.cc',
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'test-migrations.cc',
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'test-object-observe.cc',
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'test-parsing.cc',
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'test-platform.cc',
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'test-profile-generator.cc',
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'test-random-number-generator.cc',
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'test-regexp.cc',
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'test-reloc-info.cc',
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'test-representation.cc',
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'test-sampler-api.cc',
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'test-serialize.cc',
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'test-spaces.cc',
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'test-strings.cc',
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'test-symbols.cc',
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'test-strtod.cc',
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'test-thread-termination.cc',
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'test-threads.cc',
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'test-transitions.cc',
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'test-typedarrays.cc',
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'test-types.cc',
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'test-unbound-queue.cc',
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'test-unboxed-doubles.cc',
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'test-unique.cc',
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'test-unscopables-hidden-prototype.cc',
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'test-utils.cc',
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'test-version.cc',
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'test-weakmaps.cc',
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'test-weaksets.cc',
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'trace-extension.cc',
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'../unittests/compiler/raw-machine-assembler.cc',
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'../unittests/compiler/raw-machine-assembler.h',
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'../../src/startup-data-util.h',
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'../../src/startup-data-util.cc'
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],
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'conditions': [
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['v8_target_arch=="ia32"', {
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'sources': [ ### gcmole(arch:ia32) ###
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'test-assembler-ia32.cc',
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'test-code-stubs.cc',
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'test-code-stubs-ia32.cc',
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'test-disasm-ia32.cc',
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'test-macro-assembler-ia32.cc',
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'test-log-stack-tracer.cc'
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],
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}],
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['v8_target_arch=="x64"', {
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'sources': [ ### gcmole(arch:x64) ###
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'test-assembler-x64.cc',
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'test-code-stubs.cc',
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'test-code-stubs-x64.cc',
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'test-disasm-x64.cc',
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'test-macro-assembler-x64.cc',
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'test-log-stack-tracer.cc'
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],
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}],
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['v8_target_arch=="arm"', {
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'sources': [ ### gcmole(arch:arm) ###
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'test-assembler-arm.cc',
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'test-code-stubs.cc',
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'test-code-stubs-arm.cc',
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'test-disasm-arm.cc',
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'test-macro-assembler-arm.cc'
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],
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}],
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['v8_target_arch=="arm64"', {
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'sources': [ ### gcmole(arch:arm64) ###
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'test-utils-arm64.cc',
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'test-assembler-arm64.cc',
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'test-code-stubs.cc',
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'test-code-stubs-arm64.cc',
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'test-disasm-arm64.cc',
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'test-fuzz-arm64.cc',
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'test-javascript-arm64.cc',
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'test-js-arm64-variables.cc'
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],
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}],
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['v8_target_arch=="ppc"', {
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'sources': [ ### gcmole(arch:ppc) ###
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'test-assembler-ppc.cc',
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'test-code-stubs.cc',
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'test-disasm-ppc.cc'
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],
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}],
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['v8_target_arch=="ppc64"', {
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'sources': [ ### gcmole(arch:ppc64) ###
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'test-assembler-ppc.cc',
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'test-code-stubs.cc',
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'test-disasm-ppc.cc'
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],
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}],
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['v8_target_arch=="mipsel"', {
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'sources': [ ### gcmole(arch:mipsel) ###
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'test-assembler-mips.cc',
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'test-code-stubs.cc',
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'test-code-stubs-mips.cc',
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'test-disasm-mips.cc',
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'test-macro-assembler-mips.cc'
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],
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}],
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['v8_target_arch=="mips64el"', {
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'sources': [
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'test-assembler-mips64.cc',
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'test-code-stubs.cc',
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'test-code-stubs-mips64.cc',
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'test-disasm-mips64.cc',
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'test-macro-assembler-mips64.cc'
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],
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}],
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['v8_target_arch=="x87"', {
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'sources': [ ### gcmole(arch:x87) ###
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'test-assembler-x87.cc',
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'test-code-stubs.cc',
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'test-code-stubs-x87.cc',
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'test-disasm-x87.cc',
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'test-macro-assembler-x87.cc',
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'test-log-stack-tracer.cc'
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],
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}],
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[ 'OS=="linux" or OS=="qnx"', {
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'sources': [
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'test-platform-linux.cc',
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],
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}],
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[ 'OS=="win"', {
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'sources': [
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'test-platform-win32.cc',
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],
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'msvs_settings': {
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'VCCLCompilerTool': {
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# MSVS wants this for gay-{precision,shortest}.cc.
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'AdditionalOptions': ['/bigobj'],
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},
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},
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}],
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['OS=="aix"', {
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'ldflags': [ '-Wl,-bbigtoc' ],
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}],
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['component=="shared_library"', {
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# cctest can't be built against a shared library, so we need to
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# depend on the underlying static target in that case.
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'dependencies': ['../../tools/gyp/v8.gyp:v8_maybe_snapshot'],
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}, {
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'dependencies': ['../../tools/gyp/v8.gyp:v8'],
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}],
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],
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},
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{
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'target_name': 'resources',
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'type': 'none',
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'variables': {
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'file_list': [
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'../../tools/splaytree.js',
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'../../tools/codemap.js',
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'../../tools/csvparser.js',
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'../../tools/consarray.js',
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'../../tools/profile.js',
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'../../tools/profile_view.js',
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'../../tools/logreader.js',
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'log-eq-of-logging-and-traversal.js',
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],
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},
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'actions': [
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{
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'action_name': 'js2c',
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'inputs': [
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'../../tools/js2c.py',
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'<@(file_list)',
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],
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'outputs': [
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'<(generated_file)',
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],
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'action': [
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'python',
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'../../tools/js2c.py',
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'<@(_outputs)',
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'TEST', # type
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'<@(file_list)',
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],
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}
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],
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},
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],
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}
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