90a7f07489
This analysis computes the set of variables that are assigned in each loop. This is useful to avoid creating redundant loop phis when building an SSA graph, which just waste memory and require analysis to get rid of. This CL implements an AST walk for the analysis and plugs the result into the TurboFan graph builder. I left this analysis under a flag for A/B testing and until sufficient unit tests can be developed. R=danno@chromium.org, mstarzinger@chromium.org BUG= Review URL: https://codereview.chromium.org/656123005 Cr-Commit-Position: refs/heads/master@{#24957} git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24957 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
311 lines
10 KiB
Python
311 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.cc',
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'compiler/graph-builder-tester.h',
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'compiler/graph-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-codegen-deopt.cc',
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'compiler/test-control-reducer.cc',
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'compiler/test-gap-resolver.cc',
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'compiler/test-graph-reducer.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-linkage.cc',
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'compiler/test-loop-assignment-analysis.cc',
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'compiler/test-machine-operator-reducer.cc',
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'compiler/test-node-algorithm.cc',
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'compiler/test-node-cache.cc',
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'compiler/test-node.cc',
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'compiler/test-operator.cc',
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'compiler/test-phi-reducer.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-variables.cc',
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'compiler/test-schedule.cc',
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'compiler/test-scheduler.cc',
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'compiler/test-simplified-lowering.cc',
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'compiler/test-typer.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-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-checks.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-dataflow.cc',
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'test-date.cc',
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'test-debug.cc',
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'test-declarative-accessors.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-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-object-observe.cc',
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'test-ordered-hash-table.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-types.cc',
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'test-unbound-queue.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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'test-weaktypedarrays.cc',
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'trace-extension.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=="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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['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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'conditions': [
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['v8_use_snapshot=="true"', {
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'dependencies': ['../../tools/gyp/v8.gyp:v8_snapshot'],
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},
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{
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'dependencies': [
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'../../tools/gyp/v8.gyp:v8_nosnapshot',
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],
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}],
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],
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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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'off', # compression
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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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