Revert "Revert "X86: Use the constant area for more operations.""
This reverts commit cf8d1bb97e193e02b430d707d3b669565fababb4.
Handle the case of an intrinsic where CurrentMethod is still an input.
This will be the case when there are unresolved classes in the
hierarchy.
Add a test case to confirm that we don't crash when handling Math.abs,
which wants to add a pointer to the constant area for the bitmask to be
used to remove the sign bit.
Enhance 565-checker-condition-liveness to check for the case of deeply
nested EmitAtUseSite chains.
Change-Id: I022e8b96a32f5bf464331d0c318c56b9d0ac3c9a
diff --git a/compiler/optimizing/pc_relative_fixups_x86.cc b/compiler/optimizing/pc_relative_fixups_x86.cc
index a2180bc..a6f1461 100644
--- a/compiler/optimizing/pc_relative_fixups_x86.cc
+++ b/compiler/optimizing/pc_relative_fixups_x86.cc
@@ -53,6 +53,10 @@
BinaryFP(div);
}
+ void VisitCompare(HCompare* compare) OVERRIDE {
+ BinaryFP(compare);
+ }
+
void VisitReturn(HReturn* ret) OVERRIDE {
HConstant* value = ret->InputAt(0)->AsConstant();
if ((value != nullptr && Primitive::IsFloatingPointType(value->GetType()))) {
@@ -74,11 +78,50 @@
void BinaryFP(HBinaryOperation* bin) {
HConstant* rhs = bin->InputAt(1)->AsConstant();
- if (rhs != nullptr && Primitive::IsFloatingPointType(bin->GetResultType())) {
+ if (rhs != nullptr && Primitive::IsFloatingPointType(rhs->GetType())) {
ReplaceInput(bin, rhs, 1, false);
}
}
+ void VisitEqual(HEqual* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitNotEqual(HNotEqual* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitLessThan(HLessThan* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitLessThanOrEqual(HLessThanOrEqual* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitGreaterThan(HGreaterThan* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitGreaterThanOrEqual(HGreaterThanOrEqual* cond) OVERRIDE {
+ BinaryFP(cond);
+ }
+
+ void VisitNeg(HNeg* neg) OVERRIDE {
+ if (Primitive::IsFloatingPointType(neg->GetType())) {
+ // We need to replace the HNeg with a HX86FPNeg in order to address the constant area.
+ InitializePCRelativeBasePointer();
+ HGraph* graph = GetGraph();
+ HBasicBlock* block = neg->GetBlock();
+ HX86FPNeg* x86_fp_neg = new (graph->GetArena()) HX86FPNeg(
+ neg->GetType(),
+ neg->InputAt(0),
+ base_,
+ neg->GetDexPc());
+ block->ReplaceAndRemoveInstructionWith(neg, x86_fp_neg);
+ }
+ }
+
void VisitPackedSwitch(HPackedSwitch* switch_insn) OVERRIDE {
if (switch_insn->GetNumEntries() <=
InstructionCodeGeneratorX86::kPackedSwitchJumpTableThreshold) {
@@ -127,12 +170,23 @@
// If this is an invoke-static/-direct with PC-relative dex cache array
// addressing, we need the PC-relative address base.
HInvokeStaticOrDirect* invoke_static_or_direct = invoke->AsInvokeStaticOrDirect();
+ // We can't add a pointer to the constant area if we already have a current
+ // method pointer. This may arise when sharpening doesn't remove the current
+ // method pointer from the invoke.
+ if (invoke_static_or_direct != nullptr &&
+ invoke_static_or_direct->HasCurrentMethodInput()) {
+ DCHECK(!invoke_static_or_direct->HasPcRelativeDexCache());
+ return;
+ }
+
+ bool base_added = false;
if (invoke_static_or_direct != nullptr && invoke_static_or_direct->HasPcRelativeDexCache()) {
InitializePCRelativeBasePointer();
// Add the extra parameter base_.
- DCHECK(!invoke_static_or_direct->HasCurrentMethodInput());
invoke_static_or_direct->AddSpecialInput(base_);
+ base_added = true;
}
+
// Ensure that we can load FP arguments from the constant area.
for (size_t i = 0, e = invoke->InputCount(); i < e; i++) {
HConstant* input = invoke->InputAt(i)->AsConstant();
@@ -140,6 +194,25 @@
ReplaceInput(invoke, input, i, true);
}
}
+
+ // These intrinsics need the constant area.
+ switch (invoke->GetIntrinsic()) {
+ case Intrinsics::kMathAbsDouble:
+ case Intrinsics::kMathAbsFloat:
+ case Intrinsics::kMathMaxDoubleDouble:
+ case Intrinsics::kMathMaxFloatFloat:
+ case Intrinsics::kMathMinDoubleDouble:
+ case Intrinsics::kMathMinFloatFloat:
+ if (!base_added) {
+ DCHECK(invoke_static_or_direct != nullptr);
+ DCHECK(!invoke_static_or_direct->HasCurrentMethodInput());
+ InitializePCRelativeBasePointer();
+ invoke_static_or_direct->AddSpecialInput(base_);
+ }
+ break;
+ default:
+ break;
+ }
}
// The generated HX86ComputeBaseMethodAddress in the entry block needed as an