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6797305: Add LoadUB and LoadUI opcode class

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Add a LoadUB (unsigned byte) and LoadUI (unsigned int) opcode class so we have these load optimizations in the first place and do not need to handle them in the matcher.

Reviewed-by: never, kvn
This commit is contained in:
Christian Thalinger 2009-03-09 03:17:11 -07:00
parent 26d192003f
commit 89cea91c48
17 changed files with 726 additions and 186 deletions
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3
hotspot/src/share/vm/adlc/forms.cpp
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@ -70,6 +70,7 @@ const char *NameList::iter() {
else return (_iter <_cur-1 ? _names[++_iter] : NULL);
}
const char *NameList::current() { return (_iter < _cur ? _names[_iter] : NULL); }
const char *NameList::peek(int skip) { return (_iter + skip < _cur ? _names[_iter + skip] : NULL); }
// Return 'true' if current entry is signal
bool NameList::current_is_signal() {
@ -248,11 +249,13 @@ Form::DataType Form::ideal_to_Reg_type(const char *name) const {
// True if 'opType', an ideal name, loads or stores.
Form::DataType Form::is_load_from_memory(const char *opType) const {
if( strcmp(opType,"LoadB")==0 ) return Form::idealB;
if( strcmp(opType,"LoadUB")==0 ) return Form::idealB;
if( strcmp(opType,"LoadUS")==0 ) return Form::idealC;
if( strcmp(opType,"LoadD")==0 ) return Form::idealD;
if( strcmp(opType,"LoadD_unaligned")==0 ) return Form::idealD;
if( strcmp(opType,"LoadF")==0 ) return Form::idealF;
if( strcmp(opType,"LoadI")==0 ) return Form::idealI;
if( strcmp(opType,"LoadUI2L")==0 ) return Form::idealI;
if( strcmp(opType,"LoadKlass")==0 ) return Form::idealP;
if( strcmp(opType,"LoadNKlass")==0 ) return Form::idealN;
if( strcmp(opType,"LoadL")==0 ) return Form::idealL;