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8190934: Regressions on Haswell Xeon due to JDK-8178811

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Reviewed-by: neliasso, kvn
This commit is contained in:
Vivek Deshpande 2017-12-15 10:44:06 -08:00
parent d2db163edb
commit 25e03a8e65
4 changed files with 43 additions and 11 deletions
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20
src/hotspot/share/opto/library_call.cpp
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@ -328,6 +328,13 @@ class LibraryCallKit : public GraphKit {
bool inline_profileBoolean();
bool inline_isCompileConstant();
void clear_upper_avx() {
#ifdef X86
if (UseAVX >= 2) {
C->set_clear_upper_avx(true);
}
#endif
}
};
//---------------------------make_vm_intrinsic----------------------------
@ -1082,6 +1089,7 @@ Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1_start, Node
// All these intrinsics have checks.
C->set_has_split_ifs(true); // Has chance for split-if optimization
clear_upper_avx();
return _gvn.transform(result);
}
@ -1156,6 +1164,8 @@ bool LibraryCallKit::inline_array_equals(StrIntrinsicNode::ArgEnc ae) {
const TypeAryPtr* mtype = (ae == StrIntrinsicNode::UU) ? TypeAryPtr::CHARS : TypeAryPtr::BYTES;
set_result(_gvn.transform(new AryEqNode(control(), memory(mtype), arg1, arg2, ae)));
clear_upper_avx();
return true;
}
@ -1227,6 +1237,7 @@ bool LibraryCallKit::inline_preconditions_checkIndex() {
result = _gvn.transform(result);
set_result(result);
replace_in_map(index, result);
clear_upper_avx();
return true;
}
@ -1325,6 +1336,7 @@ bool LibraryCallKit::inline_string_indexOfI(StrIntrinsicNode::ArgEnc ae) {
set_control(_gvn.transform(region));
record_for_igvn(region);
set_result(_gvn.transform(phi));
clear_upper_avx();
return true;
}
@ -1488,6 +1500,8 @@ bool LibraryCallKit::inline_string_copy(bool compress) {
if (compress) {
set_result(_gvn.transform(count));
}
clear_upper_avx();
return true;
}
@ -1585,6 +1599,8 @@ bool LibraryCallKit::inline_string_toBytesU() {
if (!stopped()) {
set_result(newcopy);
}
clear_upper_avx();
return true;
}
@ -5286,6 +5302,8 @@ bool LibraryCallKit::inline_arraycopy() {
assert(validated, "shouldn't transform if all arguments not validated");
set_all_memory(n);
}
clear_upper_avx();
return true;
}
@ -5406,6 +5424,8 @@ bool LibraryCallKit::inline_encodeISOArray() {
Node* res_mem = _gvn.transform(new SCMemProjNode(enc));
set_memory(res_mem, mtype);
set_result(enc);
clear_upper_avx();
return true;
}