VectorICs: New interface descriptor for vector transitioning stores.

src/compiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 145 matching lines @@
       prologue_offset_(Code::kPrologueOffsetNotSet),
       no_frame_ranges_(isolate->cpu_profiler()->is_profiling()
                            ? new List<OffsetRange>(2)
                            : nullptr),
       track_positions_(FLAG_hydrogen_track_positions ||
                        isolate->cpu_profiler()->is_profiling()),
       opt_count_(has_shared_info() ? shared_info()->opt_count() : 0),
       parameter_count_(0),
       optimization_id_(-1),
       osr_expr_stack_height_(0),
-      function_type_(nullptr) {}
+      function_type_(nullptr) {
+  // Parameter count is number of stack parameters.
+  if (code_stub_ != NULL) {
+    CodeStubDescriptor descriptor(code_stub_);
+    parameter_count_ = descriptor.GetStackParameterCount();
+    if (descriptor.function_mode() == NOT_JS_FUNCTION_STUB_MODE) {
+      parameter_count_--;
+    }
+  }
+}
 
 
 CompilationInfo::~CompilationInfo() {
   DisableFutureOptimization();
   delete deferred_handles_;
   delete no_frame_ranges_;
 #ifdef DEBUG
   // Check that no dependent maps have been added or added dependent maps have
   // been rolled back or committed.
   DCHECK(dependencies()->IsEmpty());
@@ skipping 1530 matching lines @@
 
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8