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author | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2022-11-29 11:52:36 +0100 |
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committer | Allan Sandfeld Jensen <allan.jensen@qt.io> | 2022-11-29 11:52:36 +0100 |
commit | c1ffb5f937251798307c1834cca3d79266000c06 (patch) | |
tree | 65517eab882e238de91a4e7827fda9ab2666ca1c /chromium/v8/src/compiler/effect-control-linearizer.cc | |
parent | d878f684916cef110d8e4474eac3658e47f63e9e (diff) | |
parent | 45f9ded08bb7526984b24ccb5a5327aaf6821676 (diff) | |
download | qtwebengine-chromium-c1ffb5f937251798307c1834cca3d79266000c06.tar.gz |
Merge branch 'upstream-master' into 106-based
Change-Id: I772959dc154151e6eaf38cdeaf586c3acf1e90e8
Diffstat (limited to 'chromium/v8/src/compiler/effect-control-linearizer.cc')
-rw-r--r-- | chromium/v8/src/compiler/effect-control-linearizer.cc | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/chromium/v8/src/compiler/effect-control-linearizer.cc b/chromium/v8/src/compiler/effect-control-linearizer.cc index a887771cabc..cddd956b576 100644 --- a/chromium/v8/src/compiler/effect-control-linearizer.cc +++ b/chromium/v8/src/compiler/effect-control-linearizer.cc @@ -5221,6 +5221,8 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) { auto if_double = __ MakeDeferredLabel(); auto done = __ MakeLabel(MachineRepresentation::kTagged); + auto loaded_field = __ MakeLabel(MachineRepresentation::kTagged); + auto done_double = __ MakeLabel(MachineRepresentation::kFloat64); // Check if field is a mutable double field. __ GotoIfNot(__ IntPtrEqual(__ WordAnd(index, one), zero), &if_double); @@ -5237,8 +5239,8 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) { Node* offset = __ IntAdd(__ WordShl(index, __ IntPtrConstant(kTaggedSizeLog2 - 1)), __ IntPtrConstant(JSObject::kHeaderSize - kHeapObjectTag)); - Node* result = __ Load(MachineType::AnyTagged(), object, offset); - __ Goto(&done, result); + Node* field = __ Load(MachineType::AnyTagged(), object, offset); + __ Goto(&loaded_field, field); } // The field is located in the properties backing store of {object}. @@ -5252,8 +5254,8 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) { __ IntPtrConstant(kTaggedSizeLog2 - 1)), __ IntPtrConstant((FixedArray::kHeaderSize - kTaggedSize) - kHeapObjectTag)); - Node* result = __ Load(MachineType::AnyTagged(), properties, offset); - __ Goto(&done, result); + Node* field = __ Load(MachineType::AnyTagged(), properties, offset); + __ Goto(&loaded_field, field); } } @@ -5261,9 +5263,6 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) { // architectures, or a mutable HeapNumber. __ Bind(&if_double); { - auto loaded_field = __ MakeLabel(MachineRepresentation::kTagged); - auto done_double = __ MakeLabel(MachineRepresentation::kFloat64); - index = __ WordSar(index, one); // Check if field is in-object or out-of-object. @@ -5291,27 +5290,27 @@ Node* EffectControlLinearizer::LowerLoadFieldByIndex(Node* node) { Node* field = __ Load(MachineType::AnyTagged(), properties, offset); __ Goto(&loaded_field, field); } + } - __ Bind(&loaded_field); - { - Node* field = loaded_field.PhiAt(0); - // We may have transitioned in-place away from double, so check that - // this is a HeapNumber -- otherwise the load is fine and we don't need - // to copy anything anyway. - __ GotoIf(ObjectIsSmi(field), &done, field); - Node* field_map = __ LoadField(AccessBuilder::ForMap(), field); - __ GotoIfNot(__ TaggedEqual(field_map, __ HeapNumberMapConstant()), &done, - field); - - Node* value = __ LoadField(AccessBuilder::ForHeapNumberValue(), field); - __ Goto(&done_double, value); - } + __ Bind(&loaded_field); + { + Node* field = loaded_field.PhiAt(0); + // We may have transitioned in-place away from double, so check that + // this is a HeapNumber -- otherwise the load is fine and we don't need + // to copy anything anyway. + __ GotoIf(ObjectIsSmi(field), &done, field); + Node* field_map = __ LoadField(AccessBuilder::ForMap(), field); + __ GotoIfNot(__ TaggedEqual(field_map, __ HeapNumberMapConstant()), &done, + field); - __ Bind(&done_double); - { - Node* result = AllocateHeapNumberWithValue(done_double.PhiAt(0)); - __ Goto(&done, result); - } + Node* value = __ LoadField(AccessBuilder::ForHeapNumberValue(), field); + __ Goto(&done_double, value); + } + + __ Bind(&done_double); + { + Node* result = AllocateHeapNumberWithValue(done_double.PhiAt(0)); + __ Goto(&done, result); } __ Bind(&done); |