MIPS[64]: Port `[deoptimizer] Fill the single precision registers in the deoptimizer entry stub.`

src/mips/deoptimizer-mips.cc

Index: src/mips/deoptimizer-mips.cc
diff --git a/src/mips/deoptimizer-mips.cc b/src/mips/deoptimizer-mips.cc
index 40490018c7f345db1abe09873b7266b53251c229..4ae13811975197192d198e818f7b0e6bf8249f00 100644
--- a/src/mips/deoptimizer-mips.cc
+++ b/src/mips/deoptimizer-mips.cc
@@ -114,6 +114,7 @@ void Deoptimizer::TableEntryGenerator::Generate() {
   RegList saved_regs = restored_regs | sp.bit() | ra.bit();
 
   const int kDoubleRegsSize = kDoubleSize * DoubleRegister::kMaxNumRegisters;
+  const int kFloatRegsSize = kFloatSize * FloatRegister::kMaxNumRegisters;
 
   // Save all FPU registers before messing with them.
   __ Subu(sp, sp, Operand(kDoubleRegsSize));
@@ -125,6 +126,14 @@ void Deoptimizer::TableEntryGenerator::Generate() {
     __ Sdc1(fpu_reg, MemOperand(sp, offset));
   }
 
+  __ Subu(sp, sp, Operand(kFloatRegsSize));
+  for (int i = 0; i < config->num_allocatable_float_registers(); ++i) {
+    int code = config->GetAllocatableFloatCode(i);
+    const FloatRegister fpu_reg = FloatRegister::from_code(code);
+    int offset = code * kFloatSize;
+    __ swc1(fpu_reg, MemOperand(sp, offset));
+  }
+
   // Push saved_regs (needed to populate FrameDescription::registers_).
   // Leave gaps for other registers.
   __ Subu(sp, sp, kNumberOfRegisters * kPointerSize);
@@ -138,7 +147,7 @@ void Deoptimizer::TableEntryGenerator::Generate() {
   __ sw(fp, MemOperand(a2));
 
   const int kSavedRegistersAreaSize =
-      (kNumberOfRegisters * kPointerSize) + kDoubleRegsSize;
+      (kNumberOfRegisters * kPointerSize) + kDoubleRegsSize + kFloatRegsSize;
 
   // Get the bailout id from the stack.
   __ lw(a2, MemOperand(sp, kSavedRegistersAreaSize));
@@ -198,11 +207,23 @@ void Deoptimizer::TableEntryGenerator::Generate() {
   for (int i = 0; i < config->num_allocatable_double_registers(); ++i) {
     int code = config->GetAllocatableDoubleCode(i);
     int dst_offset = code * kDoubleSize + double_regs_offset;
-    int src_offset = code * kDoubleSize + kNumberOfRegisters * kPointerSize;
+    int src_offset =
+        code * kDoubleSize + kNumberOfRegisters * kPointerSize + kFloatRegsSize;
     __ Ldc1(f0, MemOperand(sp, src_offset));
     __ Sdc1(f0, MemOperand(a1, dst_offset));
   }
 
+  // Copy FPU registers to
+  // float_registers_[FloarRegister::kNumAllocatableRegisters]

[Jarin, 2017/03/23 12:31:32]

Floar -> Float?

+  int float_regs_offset = FrameDescription::float_registers_offset();
+  for (int i = 0; i < config->num_allocatable_float_registers(); ++i) {
+    int code = config->GetAllocatableFloatCode(i);
+    int dst_offset = code * kFloatSize + float_regs_offset;
+    int src_offset = code * kFloatSize + kNumberOfRegisters * kPointerSize;
+    __ lwc1(f0, MemOperand(sp, src_offset));
+    __ swc1(f0, MemOperand(a1, dst_offset));
+  }
+
   // Remove the bailout id and the saved registers from the stack.
   __ Addu(sp, sp, Operand(kSavedRegistersAreaSize + (1 * kPointerSize)));