Revert of [interpeter] Move to table based peephole optimizer. (patch…

…set v8#38 id:730001 of https://codereview.chromium.org/2118183002/ )

Reason for revert:
Break MIPS port.

Original issue's description:
> [interpeter] Move to table based peephole optimizer.
>
> Introduces a lookup table for peephole optimizations.
>
> Fixes some tests using BytecodePeepholeOptimizer::Write() that should
> have been update to use BytecodePeepholeOptimizer::WriteJump().
>
> BUG=v8:4280
> LOG=N
>
> Committed: https://crrev.com/f4234422b93b21a286b0f31799009bcbe8b90b9e
> Cr-Commit-Position: refs/heads/master@{#37819}

TBR=rmcilroy@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280

Review-Url: https://codereview.chromium.org/2161563002
Cr-Commit-Position: refs/heads/master@{#37821}

BUILD.gn

@@ -86,7 +86,6 @@ if (v8_enable_gdbjit == "") {
   }
 }
 
-v8_generated_peephole_source = "$target_gen_dir/bytecode-peephole-table.cc"
 v8_random_seed = "314159265"
 v8_toolset_for_shell = "host"
 
@@ -650,25 +649,6 @@ action("run_mksnapshot") {
   }
 }
 
-action("run_mkpeephole") {
-  visibility = [ ":*" ]  # Only targets in this file can depend on this.
-
-  deps = [ ":mkpeephole($v8_snapshot_toolchain)" ]
-
-  outputs = [ v8_generated_peephole_source ]
-
-  sources = []
-
-  script = "tools/run.py"
-
-  args = [
-    "./" + rebase_path(get_label_info(":mkpeephole($v8_snapshot_toolchain)",
-                                      "root_out_dir") + "/mkpeephole",
-                       root_build_dir),
-    rebase_path(v8_generated_peephole_source, root_build_dir),
-  ]
-}
-
 action("v8_dump_build_config") {
   script = "tools/testrunner/utils/dump_build_config.py"
   outputs = [
@@ -1331,7 +1311,6 @@ v8_source_set("v8_base") {
     "src/interpreter/bytecode-label.h",
     "src/interpreter/bytecode-peephole-optimizer.cc",
     "src/interpreter/bytecode-peephole-optimizer.h",
-    "src/interpreter/bytecode-peephole-table.h",
     "src/interpreter/bytecode-pipeline.cc",
     "src/interpreter/bytecode-pipeline.h",
     "src/interpreter/bytecode-register-allocator.cc",
@@ -1930,9 +1909,6 @@ v8_source_set("v8_base") {
     ":v8_libsampler",
   ]
 
-  sources += [ v8_generated_peephole_source ]
-  deps += [ ":run_mkpeephole" ]
-
   if (is_win) {
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     cflags = [ "/wd4267" ]
@@ -2156,31 +2132,6 @@ if (current_toolchain == v8_snapshot_toolchain) {
   }
 }
 
-v8_executable("mkpeephole") {
-  # mkpeephole needs to be built for the build host so the peephole lookup
-  # table can built during build. The table depends on the properties of
-  # bytecodes that are described in bytecodes.{cc,h}.
-  visibility = [ ":*" ]  # Only targets in this file can depend on this.
-
-  sources = [
-    "src/interpreter/bytecode-peephole-optimizer.h",
-    "src/interpreter/bytecodes.cc",
-    "src/interpreter/bytecodes.h",
-    "src/interpreter/mkpeephole.cc",
-  ]
-
-  configs = [
-    ":external_config",
-    ":internal_config",
-  ]
-
-  deps = [
-    ":v8_libbase",
-    "//build/config/sanitizers:deps",
-    "//build/win:default_exe_manifest",
-  ]
-}
-
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 # Public targets
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