S390: Initial Impl of Crankshaft features

S390 specific implementations of crankshaft functions.

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,jyan@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1763233003

Cr-Commit-Position: refs/heads/master@{#34543}

BUILD.gn

@@ -1644,6 +1644,12 @@ source_set("v8_base") {
       "src/compiler/s390/instruction-codes-s390.h",
       "src/compiler/s390/instruction-scheduler-s390.cc",
       "src/compiler/s390/instruction-selector-s390.cc",
+      "src/crankshaft/s390/lithium-codegen-s390.cc",
+      "src/crankshaft/s390/lithium-codegen-s390.h",
+      "src/crankshaft/s390/lithium-gap-resolver-s390.cc",
+      "src/crankshaft/s390/lithium-gap-resolver-s390.h",
+      "src/crankshaft/s390/lithium-s390.cc",
+      "src/crankshaft/s390/lithium-s390.h",
       "src/debug/s390/debug-s390.cc",
       "src/full-codegen/s390/full-codegen-s390.cc",
       "src/ic/s390/access-compiler-s390.cc",

src/crankshaft/hydrogen-instructions.cc

@@ -25,6 +25,8 @@
 #include "src/crankshaft/mips/lithium-mips.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/crankshaft/mips64/lithium-mips64.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-s390.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/crankshaft/x87/lithium-x87.h"  // NOLINT
 #else

src/crankshaft/hydrogen.cc

@@ -58,6 +58,8 @@
 #include "src/crankshaft/mips/lithium-codegen-mips.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/crankshaft/mips64/lithium-codegen-mips64.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-codegen-s390.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/crankshaft/x87/lithium-codegen-x87.h"  // NOLINT
 #else

src/crankshaft/lithium-allocator-inl.h

@@ -21,6 +21,8 @@
 #include "src/crankshaft/mips/lithium-mips.h" // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/crankshaft/mips64/lithium-mips64.h" // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-s390.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/crankshaft/x87/lithium-x87.h" // NOLINT
 #else

src/crankshaft/lithium-codegen.cc

@@ -30,6 +30,9 @@
 #elif V8_TARGET_ARCH_PPC
 #include "src/crankshaft/ppc/lithium-ppc.h"          // NOLINT
 #include "src/crankshaft/ppc/lithium-codegen-ppc.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-s390.h"          // NOLINT
+#include "src/crankshaft/s390/lithium-codegen-s390.h"  // NOLINT
 #else
 #error Unsupported target architecture.
 #endif

src/crankshaft/lithium-inl.h

@@ -21,6 +21,8 @@
 #include "src/crankshaft/mips64/lithium-mips64.h"  // NOLINT
 #elif V8_TARGET_ARCH_PPC
 #include "src/crankshaft/ppc/lithium-ppc.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-s390.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/crankshaft/x87/lithium-x87.h"  // NOLINT
 #else

src/crankshaft/lithium.cc

@@ -30,6 +30,9 @@
 #elif V8_TARGET_ARCH_X87
 #include "src/crankshaft/x87/lithium-x87.h"  // NOLINT
 #include "src/crankshaft/x87/lithium-codegen-x87.h"  // NOLINT
+#elif V8_TARGET_ARCH_S390
+#include "src/crankshaft/s390/lithium-s390.h"          // NOLINT
+#include "src/crankshaft/s390/lithium-codegen-s390.h"  // NOLINT
 #else
 #error "Unknown architecture."
 #endif

src/crankshaft/s390/lithium-gap-resolver-s390.h

+// Copyright 2014 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.
+
+#ifndef V8_CRANKSHAFT_S390_LITHIUM_GAP_RESOLVER_S390_H_
+#define V8_CRANKSHAFT_S390_LITHIUM_GAP_RESOLVER_S390_H_
+
+#include "src/crankshaft/lithium.h"
+
+namespace v8 {
+namespace internal {
+
+class LCodeGen;
+class LGapResolver;
+
+class LGapResolver final BASE_EMBEDDED {
+ public:
+  explicit LGapResolver(LCodeGen* owner);
+
+  // Resolve a set of parallel moves, emitting assembler instructions.
+  void Resolve(LParallelMove* parallel_move);
+
+ private:
+  // Build the initial list of moves.
+  void BuildInitialMoveList(LParallelMove* parallel_move);
+
+  // Perform the move at the moves_ index in question (possibly requiring
+  // other moves to satisfy dependencies).
+  void PerformMove(int index);
+
+  // If a cycle is found in the series of moves, save the blocking value to
+  // a scratch register.  The cycle must be found by hitting the root of the
+  // depth-first search.
+  void BreakCycle(int index);
+
+  // After a cycle has been resolved, restore the value from the scratch
+  // register to its proper destination.
+  void RestoreValue();
+
+  // Emit a move and remove it from the move graph.
+  void EmitMove(int index);
+
+  // Verify the move list before performing moves.
+  void Verify();
+
+  LCodeGen* cgen_;
+
+  // List of moves not yet resolved.
+  ZoneList<LMoveOperands> moves_;
+
+  int root_index_;
+  bool in_cycle_;
+  LOperand* saved_destination_;
+};
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_CRANKSHAFT_S390_LITHIUM_GAP_RESOLVER_S390_H_

tools/gyp/v8.gyp

@@ -1564,6 +1564,12 @@
             '../../src/compiler/s390/instruction-codes-s390.h',
             '../../src/compiler/s390/instruction-scheduler-s390.cc',
             '../../src/compiler/s390/instruction-selector-s390.cc',
+            '../../src/crankshaft/s390/lithium-codegen-s390.cc',
+            '../../src/crankshaft/s390/lithium-codegen-s390.h',
+            '../../src/crankshaft/s390/lithium-gap-resolver-s390.cc',
+            '../../src/crankshaft/s390/lithium-gap-resolver-s390.h',
+            '../../src/crankshaft/s390/lithium-s390.cc',
+            '../../src/crankshaft/s390/lithium-s390.h',
             '../../src/debug/s390/debug-s390.cc',
             '../../src/full-codegen/s390/full-codegen-s390.cc',
             '../../src/ic/s390/access-compiler-s390.cc',