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6614597: Performance variability in jvm2008 xml.validation

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Fix incorrect marking of methods as not compilable.

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2010-02-01 16:49:49 -08:00
parent 4e8608a124
commit 0c27c5537e
18 changed files with 213 additions and 133 deletions
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7
hotspot/src/share/vm/runtime/deoptimization.hpp
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@ -33,12 +33,15 @@ class Deoptimization : AllStatic {
enum DeoptReason {
Reason_many = -1, // indicates presence of several reasons
Reason_none = 0, // indicates absence of a relevant deopt.
// Next 7 reasons are recorded per bytecode in DataLayout::trap_bits
Reason_null_check, // saw unexpected null or zero divisor (@bci)
Reason_null_assert, // saw unexpected non-null or non-zero (@bci)
Reason_range_check, // saw unexpected array index (@bci)
Reason_class_check, // saw unexpected object class (@bci)
Reason_array_check, // saw unexpected array class (aastore @bci)
Reason_intrinsic, // saw unexpected operand to intrinsic (@bci)
Reason_bimorphic, // saw unexpected object class in bimorphic inlining (@bci)
Reason_unloaded, // unloaded class or constant pool entry
Reason_uninitialized, // bad class state (uninitialized)
Reason_unreached, // code is not reached, compiler
@ -49,7 +52,7 @@ class Deoptimization : AllStatic {
Reason_predicate, // compiler generated predicate failed
Reason_LIMIT,
// Note: Keep this enum in sync. with _trap_reason_name.
Reason_RECORDED_LIMIT = Reason_unloaded // some are not recorded per bc
Reason_RECORDED_LIMIT = Reason_bimorphic // some are not recorded per bc
// Note: Reason_RECORDED_LIMIT should be < 8 to fit into 3 bits of
// DataLayout::trap_bits. This dependency is enforced indirectly
// via asserts, to avoid excessive direct header-to-header dependencies.
@ -279,7 +282,7 @@ class Deoptimization : AllStatic {
int trap_state);
static bool reason_is_recorded_per_bytecode(DeoptReason reason) {
return reason > Reason_none && reason < Reason_RECORDED_LIMIT;
return reason > Reason_none && reason <= Reason_RECORDED_LIMIT;
}
static DeoptReason reason_recorded_per_bytecode_if_any(DeoptReason reason) {