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src/hotspot/cpu/s390/register_s390.hpp
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*** 1,8 ****
/*
! * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
! * Copyright (c) 2016 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
--- 1,8 ----
/*
! * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
! * Copyright (c) 2016, 2017 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 32,46 ****
class Address;
class VMRegImpl;
typedef VMRegImpl* VMReg;
- // Use Register as shortcut.
- class RegisterImpl;
- typedef RegisterImpl* Register;
-
- // The implementation of integer registers for z/Architecture.
// z/Architecture registers, see "LINUX for zSeries ELF ABI Supplement", IBM March 2001
//
// r0-r1 General purpose (volatile)
// r2 Parameter and return value (volatile)
--- 32,41 ----
*** 55,64 ****
--- 50,70 ----
//
// f0,f2,f4,f6 Parameters (volatile)
// f1,f3,f5,f7 General purpose (volatile)
// f8-f15 General purpose (nonvolatile)
+
+ //===========================
+ //=== Integer Registers ===
+ //===========================
+
+ // Use Register as shortcut.
+ class RegisterImpl;
+ typedef RegisterImpl* Register;
+
+ // The implementation of integer registers for z/Architecture.
+
inline Register as_Register(int encoding) {
return (Register)(long)encoding;
}
class RegisterImpl: public AbstractRegisterImpl {
*** 108,117 ****
--- 114,128 ----
CONSTANT_REGISTER_DECLARATION(Register, Z_R12, (12));
CONSTANT_REGISTER_DECLARATION(Register, Z_R13, (13));
CONSTANT_REGISTER_DECLARATION(Register, Z_R14, (14));
CONSTANT_REGISTER_DECLARATION(Register, Z_R15, (15));
+
+ //=============================
+ //=== Condition Registers ===
+ //=============================
+
// Use ConditionRegister as shortcut
class ConditionRegisterImpl;
typedef ConditionRegisterImpl* ConditionRegister;
// The implementation of condition register(s) for the z/Architecture.
*** 157,167 ****
// Because z/Architecture has so many registers, #define'ing values for them is
// beneficial in code size and is worth the cost of some of the
// dangers of defines.
// If a particular file has a problem with these defines then it's possible
// to turn them off in that file by defining
! // DONT_USE_REGISTER_DEFINES. Register_definition_s390.cpp does that
// so that it's able to provide real definitions of these registers
// for use in debuggers and such.
#ifndef DONT_USE_REGISTER_DEFINES
#define noreg ((Register)(noreg_RegisterEnumValue))
--- 168,178 ----
// Because z/Architecture has so many registers, #define'ing values for them is
// beneficial in code size and is worth the cost of some of the
// dangers of defines.
// If a particular file has a problem with these defines then it's possible
// to turn them off in that file by defining
! // DONT_USE_REGISTER_DEFINES. Register_definitions_s390.cpp does that
// so that it's able to provide real definitions of these registers
// for use in debuggers and such.
#ifndef DONT_USE_REGISTER_DEFINES
#define noreg ((Register)(noreg_RegisterEnumValue))
*** 184,193 ****
--- 195,209 ----
#define Z_R15 ((Register)(Z_R15_RegisterEnumValue))
#define Z_CR ((ConditionRegister)(Z_CR_ConditionRegisterEnumValue))
#endif // DONT_USE_REGISTER_DEFINES
+
+ //=========================
+ //=== Float Registers ===
+ //=========================
+
// Use FloatRegister as shortcut
class FloatRegisterImpl;
typedef FloatRegisterImpl* FloatRegister;
// The implementation of float registers for the z/Architecture.
*** 261,286 ****
#define Z_F13 ((FloatRegister)( Z_F13_FloatRegisterEnumValue))
#define Z_F14 ((FloatRegister)( Z_F14_FloatRegisterEnumValue))
#define Z_F15 ((FloatRegister)( Z_F15_FloatRegisterEnumValue))
#endif // DONT_USE_REGISTER_DEFINES
- // Need to know the total number of registers of all sorts for SharedInfo.
- // Define a class that exports it.
-
- class ConcreteRegisterImpl : public AbstractRegisterImpl {
- public:
- enum {
- number_of_registers =
- (RegisterImpl::number_of_registers +
- FloatRegisterImpl::number_of_registers)
- * 2 // register halves
- + 1 // condition code register
- };
- static const int max_gpr;
- static const int max_fpr;
- };
-
// Single, Double and Quad fp reg classes. These exist to map the ADLC
// encoding for a floating point register, to the FloatRegister number
// desired by the macroassembler. A FloatRegister is a number between
// 0 and 31 passed around as a pointer. For ADLC, an fp register encoding
// is the actual bit encoding used by the z/Architecture hardware. When ADLC used
--- 277,286 ----
*** 327,336 ****
--- 327,491 ----
return as_FloatRegister(((encoding & 1) << 5) | (encoding & 0x1c));
}
};
+ //==========================
+ //=== Vector Registers ===
+ //==========================
+
+ // Use VectorRegister as shortcut
+ class VectorRegisterImpl;
+ typedef VectorRegisterImpl* VectorRegister;
+
+ // The implementation of vector registers for z/Architecture.
+
+ inline VectorRegister as_VectorRegister(int encoding) {
+ return (VectorRegister)(long)encoding;
+ }
+
+ class VectorRegisterImpl: public AbstractRegisterImpl {
+ public:
+ enum {
+ number_of_registers = 32,
+ number_of_arg_registers = 0
+ };
+
+ // construction
+ inline friend VectorRegister as_VectorRegister(int encoding);
+
+ inline VMReg as_VMReg();
+
+ // accessors
+ int encoding() const {
+ assert(is_valid(), "invalid register"); return value();
+ }
+
+ bool is_valid() const { return 0 <= value() && value() < number_of_registers; }
+ bool is_volatile() const { return true; }
+ bool is_nonvolatile() const { return false; }
+
+ // Register fields in z/Architecture instructions are 4 bits wide, restricting the
+ // addressable register set size to 16.
+ // The vector register set size is 32, requiring an extension, by one bit, of the
+ // register encoding. This is accomplished by the introduction of a RXB field in the
+ // instruction. RXB = Register eXtension Bits.
+ // The RXB field contains the MSBs (most significant bit) of the vector register numbers
+ // used for this instruction. Assignment of MSB in RBX is by bit position of the
+ // register field in the instruction.
+ // Example:
+ // The register field starting at bit position 12 in the instruction is assigned RXB bit 0b0100.
+ int64_t RXB_mask(int pos) {
+ if (encoding() >= number_of_registers/2) {
+ switch (pos) {
+ case 8: return ((int64_t)0b1000) << 8; // actual bit pos: 36
+ case 12: return ((int64_t)0b0100) << 8; // actual bit pos: 37
+ case 16: return ((int64_t)0b0010) << 8; // actual bit pos: 38
+ case 32: return ((int64_t)0b0001) << 8; // actual bit pos: 39
+ default:
+ ShouldNotReachHere();
+ }
+ }
+ return 0;
+ }
+
+ const char* name() const;
+
+ VectorRegister successor() const { return as_VectorRegister(encoding() + 1); }
+ };
+
+ // The Vector registers of z/Architecture.
+
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, vnoreg, (-1));
+
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V0, (0));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V1, (1));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V2, (2));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V3, (3));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V4, (4));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V5, (5));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V6, (6));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V7, (7));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V8, (8));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V9, (9));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V10, (10));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V11, (11));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V12, (12));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V13, (13));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V14, (14));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V15, (15));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V16, (16));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V17, (17));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V18, (18));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V19, (19));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V20, (20));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V21, (21));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V22, (22));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V23, (23));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V24, (24));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V25, (25));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V26, (26));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V27, (27));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V28, (28));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V29, (29));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V30, (30));
+ CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V31, (31));
+
+ #ifndef DONT_USE_REGISTER_DEFINES
+ #define vnoreg ((VectorRegister)(vnoreg_VectorRegisterEnumValue))
+ #define Z_V0 ((VectorRegister)( Z_V0_VectorRegisterEnumValue))
+ #define Z_V1 ((VectorRegister)( Z_V1_VectorRegisterEnumValue))
+ #define Z_V2 ((VectorRegister)( Z_V2_VectorRegisterEnumValue))
+ #define Z_V3 ((VectorRegister)( Z_V3_VectorRegisterEnumValue))
+ #define Z_V4 ((VectorRegister)( Z_V4_VectorRegisterEnumValue))
+ #define Z_V5 ((VectorRegister)( Z_V5_VectorRegisterEnumValue))
+ #define Z_V6 ((VectorRegister)( Z_V6_VectorRegisterEnumValue))
+ #define Z_V7 ((VectorRegister)( Z_V7_VectorRegisterEnumValue))
+ #define Z_V8 ((VectorRegister)( Z_V8_VectorRegisterEnumValue))
+ #define Z_V9 ((VectorRegister)( Z_V9_VectorRegisterEnumValue))
+ #define Z_V10 ((VectorRegister)( Z_V10_VectorRegisterEnumValue))
+ #define Z_V11 ((VectorRegister)( Z_V11_VectorRegisterEnumValue))
+ #define Z_V12 ((VectorRegister)( Z_V12_VectorRegisterEnumValue))
+ #define Z_V13 ((VectorRegister)( Z_V13_VectorRegisterEnumValue))
+ #define Z_V14 ((VectorRegister)( Z_V14_VectorRegisterEnumValue))
+ #define Z_V15 ((VectorRegister)( Z_V15_VectorRegisterEnumValue))
+ #define Z_V16 ((VectorRegister)( Z_V16_VectorRegisterEnumValue))
+ #define Z_V17 ((VectorRegister)( Z_V17_VectorRegisterEnumValue))
+ #define Z_V18 ((VectorRegister)( Z_V18_VectorRegisterEnumValue))
+ #define Z_V19 ((VectorRegister)( Z_V19_VectorRegisterEnumValue))
+ #define Z_V20 ((VectorRegister)( Z_V20_VectorRegisterEnumValue))
+ #define Z_V21 ((VectorRegister)( Z_V21_VectorRegisterEnumValue))
+ #define Z_V22 ((VectorRegister)( Z_V22_VectorRegisterEnumValue))
+ #define Z_V23 ((VectorRegister)( Z_V23_VectorRegisterEnumValue))
+ #define Z_V24 ((VectorRegister)( Z_V24_VectorRegisterEnumValue))
+ #define Z_V25 ((VectorRegister)( Z_V25_VectorRegisterEnumValue))
+ #define Z_V26 ((VectorRegister)( Z_V26_VectorRegisterEnumValue))
+ #define Z_V27 ((VectorRegister)( Z_V27_VectorRegisterEnumValue))
+ #define Z_V28 ((VectorRegister)( Z_V28_VectorRegisterEnumValue))
+ #define Z_V29 ((VectorRegister)( Z_V29_VectorRegisterEnumValue))
+ #define Z_V30 ((VectorRegister)( Z_V30_VectorRegisterEnumValue))
+ #define Z_V31 ((VectorRegister)( Z_V31_VectorRegisterEnumValue))
+ #endif // DONT_USE_REGISTER_DEFINES
+
+
+ // Need to know the total number of registers of all sorts for SharedInfo.
+ // Define a class that exports it.
+
+ class ConcreteRegisterImpl : public AbstractRegisterImpl {
+ public:
+ enum {
+ number_of_registers =
+ (RegisterImpl::number_of_registers +
+ FloatRegisterImpl::number_of_registers)
+ * 2 // register halves
+ + 1 // condition code register
+ };
+ static const int max_gpr;
+ static const int max_fpr;
+ };
+
+
// Common register declarations used in assembler code.
REGISTER_DECLARATION(Register, Z_EXC_OOP, Z_R2);
REGISTER_DECLARATION(Register, Z_EXC_PC, Z_R3);
REGISTER_DECLARATION(Register, Z_RET, Z_R2);
REGISTER_DECLARATION(Register, Z_ARG1, Z_R2);
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