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src/cpu/s390/vm/templateInterpreterGenerator_s390.cpp
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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.
*** 1953,1963 ****
__ z_la(data, 3+1*wordSize, argP); // byte value (stack address).
// Being passed as an int, the single byte is at offset +3.
__ z_llgf(crc, 2 * wordSize, argP); // Current crc state, zero extend to 64 bit to have a clean register.
StubRoutines::zarch::generate_load_crc_table_addr(_masm, table);
! __ kernel_crc32_singleByte(crc, data, dataLen, table, Z_R1);
// Restore caller sp for c2i case.
__ resize_frame_absolute(Z_R10, Z_R0, true); // Cut the stack back to where the caller started.
__ z_br(Z_R14);
--- 1953,1963 ----
__ z_la(data, 3+1*wordSize, argP); // byte value (stack address).
// Being passed as an int, the single byte is at offset +3.
__ z_llgf(crc, 2 * wordSize, argP); // Current crc state, zero extend to 64 bit to have a clean register.
StubRoutines::zarch::generate_load_crc_table_addr(_masm, table);
! __ kernel_crc32_singleByte(crc, data, dataLen, table, Z_R1, true);
// Restore caller sp for c2i case.
__ resize_frame_absolute(Z_R10, Z_R0, true); // Cut the stack back to where the caller started.
__ z_br(Z_R14);
*** 2030,2040 ****
StubRoutines::zarch::generate_load_crc_table_addr(_masm, table);
__ resize_frame(-(6*8), Z_R0, true); // Resize frame to provide add'l space to spill 5 registers.
__ z_stmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 to make them available as work registers.
! __ kernel_crc32_1word(crc, data, dataLen, table, t0, t1, t2, t3);
__ z_lmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 back from stack.
// Restore caller sp for c2i case.
__ resize_frame_absolute(Z_R10, Z_R0, true); // Cut the stack back to where the caller started.
--- 2030,2040 ----
StubRoutines::zarch::generate_load_crc_table_addr(_masm, table);
__ resize_frame(-(6*8), Z_R0, true); // Resize frame to provide add'l space to spill 5 registers.
__ z_stmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 to make them available as work registers.
! __ kernel_crc32_1word(crc, data, dataLen, table, t0, t1, t2, t3, true);
__ z_lmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 back from stack.
// Restore caller sp for c2i case.
__ resize_frame_absolute(Z_R10, Z_R0, true); // Cut the stack back to where the caller started.
*** 2049,2060 ****
}
return NULL;
}
! // Not supported
address TemplateInterpreterGenerator::generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
return NULL;
}
void TemplateInterpreterGenerator::bang_stack_shadow_pages(bool native_call) {
// Quick & dirty stack overflow checking: bang the stack & handle trap.
--- 2049,2125 ----
}
return NULL;
}
!
! // Method entry for static native methods:
! // int java.util.zip.CRC32C.updateBytes(int crc, byte[] b, int off, int len)
! // int java.util.zip.CRC32C.updateDirectByteBuffer(int crc, long buf, int off, int len)
address TemplateInterpreterGenerator::generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
+
+ if (UseCRC32CIntrinsics) {
+ uint64_t entry_off = __ offset();
+
+ // We don't generate local frame and don't align stack because
+ // we call stub code and there is no safepoint on this path.
+
+ // Load parameters.
+ // Z_esp is callers operand stack pointer, i.e. it points to the parameters.
+ const Register argP = Z_esp;
+ const Register crc = Z_ARG1; // crc value
+ const Register data = Z_ARG2; // address of java byte array
+ const Register dataLen = Z_ARG3; // source data len
+ const Register table = Z_ARG4; // address of crc32 table
+ const Register t0 = Z_R10; // work reg for kernel* emitters
+ const Register t1 = Z_R11; // work reg for kernel* emitters
+ const Register t2 = Z_R12; // work reg for kernel* emitters
+ const Register t3 = Z_R13; // work reg for kernel* emitters
+
+ // Arguments are reversed on java expression stack.
+ // Calculate address of start element.
+ if (kind == Interpreter::java_util_zip_CRC32C_updateDirectByteBuffer) { // Used for "updateByteBuffer direct".
+ // crc @ (SP + 5W) (32bit)
+ // buf @ (SP + 3W) (64bit ptr to long array)
+ // off @ (SP + 2W) (32bit)
+ // dataLen @ (SP + 1W) (32bit)
+ // data = buf + off
+ BLOCK_COMMENT("CRC32C_updateDirectByteBuffer {");
+ __ z_llgf(crc, 5*wordSize, argP); // current crc state
+ __ z_lg(data, 3*wordSize, argP); // start of byte buffer
+ __ z_agf(data, 2*wordSize, argP); // Add byte buffer offset.
+ __ z_lgf(dataLen, 1*wordSize, argP); // #bytes to process
+ } else { // Used for "updateBytes update".
+ // crc @ (SP + 4W) (32bit)
+ // buf @ (SP + 3W) (64bit ptr to byte array)
+ // off @ (SP + 2W) (32bit)
+ // dataLen @ (SP + 1W) (32bit)
+ // data = buf + off + base_offset
+ BLOCK_COMMENT("CRC32C_updateBytes {");
+ __ z_llgf(crc, 4*wordSize, argP); // current crc state
+ __ z_lg(data, 3*wordSize, argP); // start of byte buffer
+ __ z_agf(data, 2*wordSize, argP); // Add byte buffer offset.
+ __ z_lgf(dataLen, 1*wordSize, argP); // #bytes to process
+ __ z_aghi(data, arrayOopDesc::base_offset_in_bytes(T_BYTE));
+ }
+
+ StubRoutines::zarch::generate_load_crc32c_table_addr(_masm, table);
+
+ __ resize_frame(-(6*8), Z_R0, true); // Resize frame to provide add'l space to spill 5 registers.
+ __ z_stmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 to make them available as work registers.
+ __ kernel_crc32_1word(crc, data, dataLen, table, t0, t1, t2, t3, false);
+ __ z_lmg(t0, t3, 1*8, Z_SP); // Spill regs 10..13 back from stack.
+
+ // Restore caller sp for c2i case.
+ __ resize_frame_absolute(Z_R10, Z_R0, true); // Cut the stack back to where the caller started.
+
+ __ z_br(Z_R14);
+
+ BLOCK_COMMENT("} CRC32C_update{Bytes|DirectByteBuffer}");
+ return __ addr_at(entry_off);
+ }
+
return NULL;
}
void TemplateInterpreterGenerator::bang_stack_shadow_pages(bool native_call) {
// Quick & dirty stack overflow checking: bang the stack & handle trap.
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