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8267800: Remove the '_dirty' set in BCEscapeAnalyzer

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Reviewed-by: kvn, thartmann
This commit is contained in:
Denghui Dong 2021-05-27 08:36:34 +00:00 committed by Tobias Hartmann
parent bfa46f0af3
commit 7278f56bb6
2 changed files with 0 additions and 9 deletions
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7
src/hotspot/share/ci/bcEscapeAnalyzer.cpp
View File

@ -188,10 +188,6 @@ void BCEscapeAnalyzer::set_global_escape(ArgumentMap vars, bool merge) {
}
}
void BCEscapeAnalyzer::set_dirty(ArgumentMap vars) {
clear_bits(vars, _dirty);
}
void BCEscapeAnalyzer::set_modified(ArgumentMap vars, int offs, int size) {
for (int i = 0; i < _arg_size; i++) {
@ -490,7 +486,6 @@ void BCEscapeAnalyzer::iterate_one_block(ciBlock *blk, StateInfo &state, Growabl
ArgumentMap array = state.apop();
set_method_escape(array);
state.apush(unknown_obj);
set_dirty(array);
}
break;
case Bytecodes::_istore:
@ -1451,7 +1446,6 @@ BCEscapeAnalyzer::BCEscapeAnalyzer(ciMethod* method, BCEscapeAnalyzer* parent)
, _arg_local(_arena)
, _arg_stack(_arena)
, _arg_returned(_arena)
, _dirty(_arena)
, _return_local(false)
, _return_allocated(false)
, _allocated_escapes(false)
@ -1463,7 +1457,6 @@ BCEscapeAnalyzer::BCEscapeAnalyzer(ciMethod* method, BCEscapeAnalyzer* parent)
_arg_local.clear();
_arg_stack.clear();
_arg_returned.clear();
_dirty.clear();
Arena* arena = CURRENT_ENV->arena();
_arg_modified = (uint *) arena->Amalloc(_arg_size * sizeof(uint));
Copy::zero_to_bytes(_arg_modified, _arg_size * sizeof(uint));

2
src/hotspot/share/ci/bcEscapeAnalyzer.hpp
View File

@ -54,7 +54,6 @@ class BCEscapeAnalyzer : public ResourceObj {
VectorSet _arg_local;
VectorSet _arg_stack;
VectorSet _arg_returned;
VectorSet _dirty;
enum{ ARG_OFFSET_MAX = 31};
uint *_arg_modified;
@ -84,7 +83,6 @@ class BCEscapeAnalyzer : public ResourceObj {
void clear_bits(ArgumentMap vars, VectorSet &bs);
void set_method_escape(ArgumentMap vars);
void set_global_escape(ArgumentMap vars, bool merge = false);
void set_dirty(ArgumentMap vars);
void set_modified(ArgumentMap vars, int offs, int size);
bool is_recursive_call(ciMethod* callee);