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8026251: New type profiling points: parameters to methods

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X86 interpreter and c1 type profiling for parameters on method entries

Reviewed-by: kvn, twisti
This commit is contained in:
Roland Westrelin 2013-10-22 09:51:47 +02:00
parent 4db165a8d7
commit b94884a330
26 changed files with 750 additions and 430 deletions
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31
hotspot/src/share/vm/ci/ciMethodData.hpp
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@ -43,6 +43,7 @@ class ciMultiBranchData;
class ciArgInfoData;
class ciCallTypeData;
class ciVirtualCallTypeData;
class ciParametersTypeData;
typedef ProfileData ciProfileData;
@ -124,7 +125,7 @@ public:
ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); }
ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); }
void translate_type_data_from(const ProfileData* data) {
void translate_from(const ProfileData* data) {
if (has_arguments()) {
args()->translate_type_data_from(data->as_CallTypeData()->args());
}
@ -290,6 +291,25 @@ public:
ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {};
};
class ciParametersTypeData : public ParametersTypeData {
public:
ciParametersTypeData(DataLayout* layout) : ParametersTypeData(layout) {}
virtual void translate_from(const ProfileData* data) {
parameters()->translate_type_data_from(data->as_ParametersTypeData()->parameters());
}
ciTypeStackSlotEntries* parameters() const { return (ciTypeStackSlotEntries*)ParametersTypeData::parameters(); }
ciKlass* valid_parameter_type(int i) const {
return parameters()->valid_type(i);
}
#ifndef PRODUCT
void print_data_on(outputStream* st) const;
#endif
};
// ciMethodData
//
// This class represents a MethodData* in the HotSpot virtual
@ -335,6 +355,10 @@ private:
// Coherent snapshot of original header.
MethodData _orig;
// Dedicated area dedicated to parameters. Null if no parameter
// profiling for this method.
DataLayout* _parameters;
ciMethodData(MethodData* md);
ciMethodData();
@ -403,6 +427,7 @@ public:
// If the compiler finds a profiled type that is known statically
// for sure, set it in the MethodData
void set_argument_type(int bci, int i, ciKlass* k);
void set_parameter_type(int i, ciKlass* k);
void set_return_type(int bci, ciKlass* k);
void load_data();
@ -467,6 +492,10 @@ public:
bool is_arg_returned(int i) const;
uint arg_modified(int arg) const;
ciParametersTypeData* parameters_type_data() const {
return _parameters != NULL ? new ciParametersTypeData(_parameters) : NULL;
}
// Code generation helper
ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data);
int byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); }