S390: Initial impl of turbofan compiler

src/compiler/c-linkage.cc

 // Copyright 2015 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/assembler.h"
 #include "src/macro-assembler.h"
 
 #include "src/compiler/linkage.h"
 
 #include "src/zone.h"
@@ skipping 105 matching lines @@
 #define PARAM_REGISTERS r3, r4, r5, r6, r7, r8, r9, r10
 #define CALLEE_SAVE_REGISTERS                                                 \
   r14.bit() | r15.bit() | r16.bit() | r17.bit() | r18.bit() | r19.bit() |     \
       r20.bit() | r21.bit() | r22.bit() | r23.bit() | r24.bit() | r25.bit() | \
       r26.bit() | r27.bit() | r28.bit() | r29.bit() | r30.bit()
 #define CALLEE_SAVE_FP_REGISTERS                                              \
   d14.bit() | d15.bit() | d16.bit() | d17.bit() | d18.bit() | d19.bit() |     \
       d20.bit() | d21.bit() | d22.bit() | d23.bit() | d24.bit() | d25.bit() | \
       d26.bit() | d27.bit() | d28.bit() | d29.bit() | d30.bit() | d31.bit()
 
+#elif V8_TARGET_ARCH_S390X
+// ===========================================================================
+// == s390x ==================================================================
+// ===========================================================================
+#define PARAM_REGISTERS r2, r3, r4, r5, r6
+#define CALLEE_SAVE_REGISTERS \
+  r6.bit() | r7.bit() | r8.bit() | r9.bit() | r10.bit() | ip.bit() | r13.bit()
+#define CALLEE_SAVE_FP_REGISTERS                                        \
+  d8.bit() | d9.bit() | d10.bit() | d11.bit() | d12.bit() | d13.bit() | \
+      d14.bit() | d15.bit()
+
+#elif V8_TARGET_ARCH_S390
+// ===========================================================================
+// == s390 ===================================================================
+// ===========================================================================
+#define PARAM_REGISTERS r2, r3, r4, r5, r6
+#define CALLEE_SAVE_REGISTERS \
+  r6.bit() | r7.bit() | r8.bit() | r9.bit() | r10.bit() | ip.bit() | r13.bit()
+#define CALLEE_SAVE_FP_REGISTERS (d4.bit() | d6.bit())
+
 #else
 // ===========================================================================
 // == unknown ================================================================
 // ===========================================================================
 #define UNSUPPORTED_C_LINKAGE 1
 #endif
 }  // namespace
 
 
 // General code uses the above configuration data.
@@ skipping 86 matching lines @@
       kCalleeSaveFPRegisters,        // callee-saved fp regs
       set_initialize_root_flag ?     // flags
           CallDescriptor::kInitializeRootRegister
                                : CallDescriptor::kNoFlags,
       "c-call");
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8