Experimental parser: merge to r19637

test/cctest/test-code-stubs-mips.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Rrdistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Rrdistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Rrdistributions 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
@@ skipping 14 matching lines @@
 // (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 <stdlib.h>
 
 #include "v8.h"
 
 #include "cctest.h"
 #include "code-stubs.h"
 #include "test-code-stubs.h"
+#include "mips/constants-mips.h"
 #include "factory.h"
 #include "macro-assembler.h"
 #include "platform.h"
 #include "simulator.h"
 
 using namespace v8::internal;
 
 #define __ masm.
 
 ConvertDToIFunc MakeConvertDToIFuncTrampoline(Isolate* isolate,
                                               Register source_reg,
                                               Register destination_reg,
                                               bool inline_fastpath) {
   // Allocate an executable page of memory.
   size_t actual_size;
   byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
                                                  &actual_size,
                                                  true));
   CHECK(buffer);
   HandleScope handles(isolate);
   MacroAssembler masm(isolate, buffer, static_cast<int>(actual_size));
   DoubleToIStub stub(source_reg, destination_reg, 0, true, inline_fastpath);
 
   byte* start = stub.GetCode(isolate)->instruction_start();
   Label done;
 
   // Save callee save registers.
-  __ Push(r7, r6, r5, r4);
-  __ Push(lr);
+  __ MultiPush(kCalleeSaved | ra.bit());
 
-  // For softfp, move the input value into d0.
-  if (!masm.use_eabi_hardfloat()) {
-    __ vmov(d0, r0, r1);
+  // For softfp, move the input value into f12.
+  if (IsMipsSoftFloatABI) {
+    __ Move(f12, a0, a1);
   }
   // Push the double argument.
-  __ sub(sp, sp, Operand(kDoubleSize));
-  __ vstr(d0, sp, 0);
-  if (!source_reg.is(sp)) {
-    __ mov(source_reg, sp);
-  }
+  __ Subu(sp, sp, Operand(kDoubleSize));
+  __ sdc1(f12, MemOperand(sp));
+  __ Move(source_reg, sp);
 
   // Save registers make sure they don't get clobbered.
   int source_reg_offset = kDoubleSize;
-  int reg_num = 0;
+  int reg_num = 2;
   for (;reg_num < Register::NumAllocatableRegisters(); ++reg_num) {
     Register reg = Register::from_code(reg_num);
     if (!reg.is(destination_reg)) {
       __ push(reg);
       source_reg_offset += kPointerSize;
     }
   }
 
   // Re-push the double argument.
-  __ sub(sp, sp, Operand(kDoubleSize));
-  __ vstr(d0, sp, 0);
+  __ Subu(sp, sp, Operand(kDoubleSize));
+  __ sdc1(f12, MemOperand(sp));
 
   // Call through to the actual stub
   if (inline_fastpath) {
-    __ vldr(d0, MemOperand(source_reg));
-    __ TryInlineTruncateDoubleToI(destination_reg, d0, &done);
+    __ ldc1(f12, MemOperand(source_reg));
+    __ TryInlineTruncateDoubleToI(destination_reg, f12, &done);
     if (destination_reg.is(source_reg) && !source_reg.is(sp)) {
       // Restore clobbered source_reg.
-      __ add(source_reg, sp, Operand(source_reg_offset));
+      __ Addu(source_reg, sp, Operand(source_reg_offset));
     }
   }
   __ Call(start, RelocInfo::EXTERNAL_REFERENCE);
   __ bind(&done);
 
-  __ add(sp, sp, Operand(kDoubleSize));
+  __ Addu(sp, sp, Operand(kDoubleSize));
 
   // Make sure no registers have been unexpectedly clobbered
-  for (--reg_num; reg_num >= 0; --reg_num) {
+  for (--reg_num; reg_num >= 2; --reg_num) {
     Register reg = Register::from_code(reg_num);
     if (!reg.is(destination_reg)) {
-      __ ldr(ip, MemOperand(sp, 0));
-      __ cmp(reg, ip);
-      __ Assert(eq, kRegisterWasClobbered);
-      __ add(sp, sp, Operand(kPointerSize));
+      __ lw(at, MemOperand(sp, 0));
+      __ Assert(eq, kRegisterWasClobbered, reg, Operand(at));
+      __ Addu(sp, sp, Operand(kPointerSize));
     }
   }
 
-  __ add(sp, sp, Operand(kDoubleSize));
+  __ Addu(sp, sp, Operand(kDoubleSize));
 
-  if (!destination_reg.is(r0))
-    __ mov(r0, destination_reg);
+  __ Move(v0, destination_reg);
+  Label ok;
+  __ Branch(&ok, eq, v0, Operand(zero_reg));
+  __ bind(&ok);
 
   // Restore callee save registers.
-  __ Pop(lr);
-  __ Pop(r7, r6, r5, r4);
+  __ MultiPop(kCalleeSaved | ra.bit());
 
-  __ Ret(0);
+  Label ok1;
+  __ Branch(&ok1, eq, v0, Operand(zero_reg));
+  __ bind(&ok1);
+  __ Ret();
 
   CodeDesc desc;
   masm.GetCode(&desc);
   CPU::FlushICache(buffer, actual_size);
   return (reinterpret_cast<ConvertDToIFunc>(
       reinterpret_cast<intptr_t>(buffer)));
 }
 
 #undef __
 
 
 static Isolate* GetIsolateFrom(LocalContext* context) {
   return reinterpret_cast<Isolate*>((*context)->GetIsolate());
 }
 
 
 int32_t RunGeneratedCodeCallWrapper(ConvertDToIFunc func,
                                     double from) {
 #ifdef USE_SIMULATOR
-  return CALL_GENERATED_FP_INT(func, from, 0);
+  Simulator::current(Isolate::Current())->CallFP(FUNCTION_ADDR(func), from, 0.);
+  return Simulator::current(Isolate::Current())->get_register(v0.code());
 #else
   return (*func)(from);
 #endif
 }
 
 
 TEST(ConvertDToI) {
   CcTest::InitializeVM();
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   HandleScope scope(isolate);
 
 #if DEBUG
   // Verify that the tests actually work with the C version. In the release
   // code, the compiler optimizes it away because it's all constant, but does it
   // wrong, triggering an assert on gcc.
   RunAllTruncationTests(&ConvertDToICVersion);
 #endif
 
-  Register source_registers[] = {sp, r0, r1, r2, r3, r4, r5, r6, r7};
-  Register dest_registers[] = {r0, r1, r2, r3, r4, r5, r6, r7};
+  Register source_registers[] = {
+      sp, v0, v1, a0, a1, a2, a3, t0, t1, t2, t3, t4, t5};
+  Register dest_registers[] = {
+      v0, v1, a0, a1, a2, a3, t0, t1, t2, t3, t4, t5};
 
   for (size_t s = 0; s < sizeof(source_registers) / sizeof(Register); s++) {
     for (size_t d = 0; d < sizeof(dest_registers) / sizeof(Register); d++) {
       RunAllTruncationTests(
           RunGeneratedCodeCallWrapper,
           MakeConvertDToIFuncTrampoline(isolate,
                                         source_registers[s],
                                         dest_registers[d],
                                         false));
       RunAllTruncationTests(
           RunGeneratedCodeCallWrapper,
           MakeConvertDToIFuncTrampoline(isolate,
                                         source_registers[s],
                                         dest_registers[d],
                                         true));
     }
   }
 }