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6892658: C2 should optimize some stringbuilder patterns

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Reviewed-by: kvn, twisti
This commit is contained in:
Tom Rodriguez 2009-11-12 09:24:21 -08:00
parent 63cc2211ed
commit 9db2092b1b
35 changed files with 2245 additions and 115 deletions
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6
hotspot/src/share/vm/runtime/globals.cpp
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@ -46,7 +46,8 @@ bool Flag::is_unlocker() const {
bool Flag::is_unlocked() const {
if (strcmp(kind, "{diagnostic}") == 0) {
return UnlockDiagnosticVMOptions;
} else if (strcmp(kind, "{experimental}") == 0) {
} else if (strcmp(kind, "{experimental}") == 0 ||
strcmp(kind, "{C2 experimental}") == 0) {
return UnlockExperimentalVMOptions;
} else {
return true;
@ -169,6 +170,7 @@ void Flag::print_as_flag(outputStream* st) {
#define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 product}", DEFAULT },
#define C2_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C2 pd product}", DEFAULT },
#define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 diagnostic}", DEFAULT },
#define C2_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 experimental}", DEFAULT },
#ifdef PRODUCT
#define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */
#define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */
@ -190,7 +192,7 @@ static Flag flagTable[] = {
C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT)
#endif
#ifdef COMPILER2
C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, C2_PD_DEVELOP_FLAG_STRUCT, C2_PRODUCT_FLAG_STRUCT, C2_PD_PRODUCT_FLAG_STRUCT, C2_DIAGNOSTIC_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT)
C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, C2_PD_DEVELOP_FLAG_STRUCT, C2_PRODUCT_FLAG_STRUCT, C2_PD_PRODUCT_FLAG_STRUCT, C2_DIAGNOSTIC_FLAG_STRUCT, C2_EXPERIMENTAL_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT)
#endif
{0, NULL, NULL}
};