Revision: 19732
Author: pal...@homejinni.com
Date: Fri Mar 7 22:08:20 2014 UTC
Log: MIPS: Introduce intrinsics for double values in Javascript.
Port r19704 (120500a)
Patch from Balazs Kilvady <kilva...@homejinni.com>.
BUG=
R=plin...@gmail.com
Review URL: https://codereview.chromium.org/189913005
http://code.google.com/p/v8/source/detail?r=19732
Modified:
/branches/bleeding_edge/src/mips/lithium-codegen-mips.cc
/branches/bleeding_edge/src/mips/lithium-mips.cc
/branches/bleeding_edge/src/mips/lithium-mips.h
=======================================
--- /branches/bleeding_edge/src/mips/lithium-codegen-mips.cc Fri Mar 7
15:48:50 2014 UTC
+++ /branches/bleeding_edge/src/mips/lithium-codegen-mips.cc Fri Mar 7
22:08:20 2014 UTC
@@ -5181,6 +5181,25 @@
__ bind(&done);
}
+
+
+void LCodeGen::DoDoubleBits(LDoubleBits* instr) {
+ DoubleRegister value_reg = ToDoubleRegister(instr->value());
+ Register result_reg = ToRegister(instr->result());
+ if (instr->hydrogen()->bits() == HDoubleBits::HIGH) {
+ __ FmoveHigh(result_reg, value_reg);
+ } else {
+ __ FmoveLow(result_reg, value_reg);
+ }
+}
+
+
+void LCodeGen::DoConstructDouble(LConstructDouble* instr) {
+ Register hi_reg = ToRegister(instr->hi());
+ Register lo_reg = ToRegister(instr->lo());
+ DoubleRegister result_reg = ToDoubleRegister(instr->result());
+ __ Move(result_reg, lo_reg, hi_reg);
+}
void LCodeGen::DoAllocate(LAllocate* instr) {
=======================================
--- /branches/bleeding_edge/src/mips/lithium-mips.cc Tue Mar 4 20:22:56
2014 UTC
+++ /branches/bleeding_edge/src/mips/lithium-mips.cc Fri Mar 7 22:08:20
2014 UTC
@@ -1866,6 +1866,20 @@
return AssignEnvironment(DefineAsRegister(result));
}
}
+
+
+LInstruction* LChunkBuilder::DoDoubleBits(HDoubleBits* instr) {
+ HValue* value = instr->value();
+ ASSERT(value->representation().IsDouble());
+ return DefineAsRegister(new(zone()) LDoubleBits(UseRegister(value)));
+}
+
+
+LInstruction* LChunkBuilder::DoConstructDouble(HConstructDouble* instr) {
+ LOperand* lo = UseRegister(instr->lo());
+ LOperand* hi = UseRegister(instr->hi());
+ return DefineAsRegister(new(zone()) LConstructDouble(hi, lo));
+}
LInstruction* LChunkBuilder::DoReturn(HReturn* instr) {
=======================================
--- /branches/bleeding_edge/src/mips/lithium-mips.h Tue Mar 4 20:16:24
2014 UTC
+++ /branches/bleeding_edge/src/mips/lithium-mips.h Fri Mar 7 22:08:20
2014 UTC
@@ -80,6 +80,7 @@
V(ConstantI) \
V(ConstantS) \
V(ConstantT) \
+ V(ConstructDouble) \
V(Context) \
V(DateField) \
V(DebugBreak) \
@@ -87,6 +88,7 @@
V(Deoptimize) \
V(DivI) \
V(DoubleToI) \
+ V(DoubleBits) \
V(DoubleToSmi) \
V(Drop) \
V(Dummy) \
@@ -2360,6 +2362,33 @@
};
+class LDoubleBits V8_FINAL : public LTemplateInstruction<1, 1, 0> {
+ public:
+ explicit LDoubleBits(LOperand* value) {
+ inputs_[0] = value;
+ }
+
+ LOperand* value() { return inputs_[0]; }
+
+ DECLARE_CONCRETE_INSTRUCTION(DoubleBits, "double-bits")
+ DECLARE_HYDROGEN_ACCESSOR(DoubleBits)
+};
+
+
+class LConstructDouble V8_FINAL : public LTemplateInstruction<1, 2, 0> {
+ public:
+ LConstructDouble(LOperand* hi, LOperand* lo) {
+ inputs_[0] = hi;
+ inputs_[1] = lo;
+ }
+
+ LOperand* hi() { return inputs_[0]; }
+ LOperand* lo() { return inputs_[1]; }
+
+ DECLARE_CONCRETE_INSTRUCTION(ConstructDouble, "construct-double")
+};
+
+
class LAllocate V8_FINAL : public LTemplateInstruction<1, 2, 2> {
public:
LAllocate(LOperand* context,
--
--
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