S390: Initial test changes and files checkin.

test/cctest/test-assembler-s390.cc

+// Copyright 2014 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "src/v8.h"
+
+#include "src/disassembler.h"
+#include "src/factory.h"
+#include "src/macro-assembler.h"
+#include "src/s390/assembler-s390-inl.h"
+#include "src/s390/simulator-s390.h"
+#include "test/cctest/cctest.h"
+
+using namespace v8::internal;
+
+// Define these function prototypes to match JSEntryFunction in execution.cc.
+typedef Object* (*F1)(int x, int p1, int p2, int p3, int p4);
+typedef Object* (*F2)(int x, int y, int p2, int p3, int p4);
+typedef Object* (*F3)(void* p0, int p1, int p2, int p3, int p4);
+typedef Object* (*F4)(void* p0, void* p1, int p2, int p3, int p4);
+
+#define __ assm.
+
+// Simple add parameter 1 to parameter 2 and return
+TEST(0) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  Assembler assm(isolate, NULL, 0);
+
+  __ lhi(r1, Operand(3));    // test 4-byte instr
+  __ llilf(r2, Operand(4));  // test 6-byte instr
+  __ lgr(r2, r2);            // test 2-byte opcode
+  __ ar(r2, r1);             // test 2-byte instr
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F2 f = FUNCTION_CAST<F2>(code->entry());
+  intptr_t res = reinterpret_cast<intptr_t>(
+      CALL_GENERATED_CODE(isolate, f, 3, 4, 0, 0, 0));
+  ::printf("f() = %" V8PRIxPTR "\n", res);
+  CHECK_EQ(7, static_cast<int>(res));
+}
+
+// Loop 100 times, adding loop counter to result
+TEST(1) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  Assembler assm(isolate, NULL, 0);
+  Label L, C;
+
+#if defined(_AIX)
+  __ function_descriptor();
+#endif
+
+  __ lr(r3, r2);
+  __ lhi(r2, Operand(0, kRelocInfo_NONEPTR));
+  __ b(&C);
+
+  __ bind(&L);
+  __ ar(r2, r3);
+  __ ahi(r3, Operand(-1 & 0xFFFF));
+
+  __ bind(&C);
+  __ cfi(r3, Operand(0, kRelocInfo_NONEPTR));
+  __ bne(&L);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F1 f = FUNCTION_CAST<F1>(code->entry());
+  intptr_t res = reinterpret_cast<intptr_t>(
+      CALL_GENERATED_CODE(isolate, f, 100, 0, 0, 0, 0));
+  ::printf("f() = %" V8PRIxPTR "\n", res);
+  CHECK_EQ(5050, static_cast<int>(res));
+}
+
+TEST(2) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  // Create a function that accepts &t, and loads, manipulates, and stores
+  // the doubles and floats.
+  Assembler assm(CcTest::i_isolate(), NULL, 0);
+  Label L, C;
+
+#if defined(_AIX)
+  __ function_descriptor();
+#endif
+
+  __ lgr(r3, r2);
+  __ lhi(r2, Operand(1));
+  __ b(&C);
+
+  __ bind(&L);
+  __ lr(r5, r2);    // Set up muliplicant in R4:R5
+  __ mr_z(r4, r3);  // this is actually R4:R5 = R5 * R2
+  __ lr(r2, r5);
+  __ ahi(r3, Operand(-1 & 0xFFFF));
+
+  __ bind(&C);
+  __ cfi(r3, Operand(0, kRelocInfo_NONEPTR));
+  __ bne(&L);
+  __ b(r14);
+
+  // some relocated stuff here, not executed
+  __ RecordComment("dead code, just testing relocations");
+  __ iilf(r0, Operand(isolate->factory()->true_value()));
+  __ RecordComment("dead code, just testing immediate operands");
+  __ iilf(r0, Operand(-1));
+  __ iilf(r0, Operand(0xFF000000));
+  __ iilf(r0, Operand(0xF0F0F0F0));
+  __ iilf(r0, Operand(0xFFF0FFFF));
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F1 f = FUNCTION_CAST<F1>(code->entry());
+  intptr_t res = reinterpret_cast<intptr_t>(
+      CALL_GENERATED_CODE(isolate, f, 10, 0, 0, 0, 0));
+  ::printf("f() = %" V8PRIxPTR "\n", res);
+  CHECK_EQ(3628800, static_cast<int>(res));
+}
+
+TEST(3) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  Assembler assm(isolate, NULL, 0);
+
+  __ ar(r14, r13);
+  __ sr(r14, r13);
+  __ mr_z(r14, r13);
+  __ dr(r14, r13);
+  __ or_z(r14, r13);
+  __ nr(r14, r13);
+  __ xr(r14, r13);
+
+  __ agr(r14, r13);
+  __ sgr(r14, r13);
+  __ ogr(r14, r13);
+  __ ngr(r14, r13);
+  __ xgr(r14, r13);
+
+  __ ahi(r13, Operand(123));
+  __ aghi(r13, Operand(123));
+  __ stm(r1, r2, MemOperand(r3, r0, 123));
+  __ slag(r1, r2, Operand(123));
+  __ lay(r1, MemOperand(r2, r3, -123));
+  __ a(r13, MemOperand(r1, r2, 123));
+  __ ay(r13, MemOperand(r1, r2, 123));
+  __ brc(Condition(14), Operand(123));
+  __ brc(Condition(14), Operand(-123));
+  __ brcl(Condition(14), Operand(123), false);
+  __ brcl(Condition(14), Operand(-123), false);
+  __ iilf(r13, Operand(123456789));
+  __ iihf(r13, Operand(-123456789));
+  __ mvc(MemOperand(r0, 123), MemOperand(r4, 567), 89);
+  __ sll(r13, Operand(10));
+
+  v8::internal::byte* bufPos = assm.buffer_pos();
+  ::printf("buffer position = %p", bufPos);
+  ::fflush(stdout);
+  // OS::DebugBreak();
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  USE(code);
+  ::exit(0);
+}
+
+#if 0
+TEST(4) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  Assembler assm(isolate, NULL, 0);
+  Label L2, L3, L4;
+
+  __ chi(r2, Operand(10));
+  __ ble(&L2);
+  __ lr(r2, r4);
+  __ ar(r2, r3);
+  __ b(&L3);
+
+  __ bind(&L2);
+  __ chi(r2, Operand(5));
+  __ bgt(&L4);
+
+  __ lhi(r2, Operand::Zero());
+  __ b(&L3);
+
+  __ bind(&L4);
+  __ lr(r2, r3);
+  __ sr(r2, r4);
+
+  __ bind(&L3);
+  __ lgfr(r2, r3);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F2 f = FUNCTION_CAST<F2>(code->entry());
+  intptr_t res = reinterpret_cast<intptr_t>(
+      CALL_GENERATED_CODE(isolate, f, 3, 4, 3, 0, 0));
+  ::printf("f() = %" V8PRIdPTR "\n", res);
+  CHECK_EQ(4, static_cast<int>(res));
+}
+
+
+// Test ExtractBitRange
+TEST(5) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  MacroAssembler assm(isolate, NULL, 0);
+
+  __ mov(r2, Operand(0x12345678));
+  __ ExtractBitRange(r3, r2, 3, 2);
+  __ lgfr(r2, r3);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F2 f = FUNCTION_CAST<F2>(code->entry());
+  intptr_t res =
+    reinterpret_cast<intptr_t>(CALL_GENERATED_CODE(isolate, f, 3, 4, 3, 0, 0));
+  ::printf("f() = %" V8PRIdPTR "\n", res);
+  CHECK_EQ(2, static_cast<int>(res));
+}
+
+
+// Test JumpIfSmi
+TEST(6) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  MacroAssembler assm(isolate, NULL, 0);
+
+  Label yes;
+
+  __ mov(r2, Operand(0x12345678));
+  __ JumpIfSmi(r2, &yes);
+  __ beq(&yes);
+  __ Load(r2, Operand::Zero());
+  __ b(r14);
+  __ bind(&yes);
+  __ Load(r2, Operand(1));
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F2 f = FUNCTION_CAST<F2>(code->entry());
+  intptr_t res =
+    reinterpret_cast<intptr_t>(CALL_GENERATED_CODE(isolate, f, 3, 4, 3, 0, 0));
+  ::printf("f() = %" V8PRIdPTR "\n", res);
+  CHECK_EQ(1, static_cast<int>(res));
+}
+
+
+// Test fix<->floating point conversion.
+TEST(7) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  MacroAssembler assm(isolate, NULL, 0);
+
+  Label yes;
+
+  __ mov(r3, Operand(0x1234));
+  __ cdfbr(d1, r3);
+  __ ldr(d2, d1);
+  __ adbr(d1, d2);
+  __ cfdbr(Condition(0), r2, d1);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F2 f = FUNCTION_CAST<F2>(code->entry());
+  intptr_t res =
+    reinterpret_cast<intptr_t>(CALL_GENERATED_CODE(isolate, f, 3, 4, 3, 0, 0));
+  ::printf("f() = %" V8PRIdPTR "\n", res);
+  CHECK_EQ(0x2468, static_cast<int>(res));
+}
+
+
+// Test DSGR
+TEST(8) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  MacroAssembler assm(isolate, NULL, 0);
+
+  // Zero upper bits of r3/r4
+  __ llihf(r3, Operand::Zero());
+  __ llihf(r4, Operand::Zero());
+  __ mov(r3, Operand(0x0002));
+  __ mov(r4, Operand(0x0002));
+  __ dsgr(r2, r4);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F1 f = FUNCTION_CAST<F1>(code->entry());
+  intptr_t res =
+    reinterpret_cast<intptr_t>(CALL_GENERATED_CODE(isolate, f, 100, 0,
+                                                   0, 0, 0));
+  ::printf("f() = %" V8PRIdPTR  "\n", res);
+  CHECK_EQ(0, static_cast<int>(res));
+}
+
+
+// Test LZDR
+TEST(9) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope scope(isolate);
+
+  MacroAssembler assm(isolate, NULL, 0);
+
+  __ lzdr(d4);
+  __ b(r14);
+
+  CodeDesc desc;
+  assm.GetCode(&desc);
+  Handle<Code> code = isolate->factory()->NewCode(
+      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
+#ifdef DEBUG
+  code->Print();
+#endif
+  F1 f = FUNCTION_CAST<F1>(code->entry());
+  intptr_t res =
+    reinterpret_cast<intptr_t>(CALL_GENERATED_CODE(isolate, f, 0, 0, 0, 0, 0));
+  ::printf("f() = %" V8PRIdPTR  "\n", res);
+}
+#endif
+
+#undef __