OpenJDK / jdk7u / jdk7u / hotspot
changeset 5668:f826faea93e0
8071731: Better scaling for C1
Reviewed-by: kvn, iveresov
| author | roland |
|---|---|
| date | Fri, 03 Jul 2015 21:30:02 +0100 |
| parents | e22137065c4c |
| children | ecdd49fa23ad |
| files | src/share/vm/c1/c1_LIRGenerator.cpp |
| diffstat | 1 files changed, 9 insertions(+), 1 deletions(-) [+] |
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--- a/src/share/vm/c1/c1_LIRGenerator.cpp Fri Jul 03 16:46:09 2015 +0100 +++ b/src/share/vm/c1/c1_LIRGenerator.cpp Fri Jul 03 21:30:02 2015 +0100 @@ -2154,7 +2154,15 @@ #ifdef _LP64 } #endif - __ shift_left(index_op, log2_scale, index_op); + LIR_Opr tmp = new_pointer_register(); + if (TwoOperandLIRForm) { + __ move(index_op, tmp); + index_op = tmp; + } + __ shift_left(index_op, log2_scale, tmp); + if (!TwoOperandLIRForm) { + index_op = tmp; + } } #ifdef _LP64 else if(!index_op->is_illegal() && index_op->type() == T_INT) {