Mercurial > hg > graal-compiler
changeset 23127:7d8302d428bd
TraceRA: TraceLinearScanEliminateSpillMovePhase: do not introduce spill moves for intervals that StartInMemory.
| author | Josef Eisl <josef.eisl@jku.at> |
|---|---|
| date | Tue, 01 Dec 2015 16:15:46 +0100 |
| parents | aadd99d250fe |
| children | c8eb711096d2 |
| files | graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLinearScanEliminateSpillMovePhase.java |
| diffstat | 1 files changed, 9 insertions(+), 8 deletions(-) [+] |
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--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLinearScanEliminateSpillMovePhase.java Tue Dec 01 16:14:17 2015 +0100 +++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLinearScanEliminateSpillMovePhase.java Tue Dec 01 16:15:46 2015 +0100 @@ -144,19 +144,20 @@ while (interval != TraceInterval.EndMarker && interval.spillDefinitionPos() == opId) { Debug.log("handle %s", interval); - if (!interval.canMaterialize()) { - if (!insertionBuffer.initialized()) { - /* - * prepare insertion buffer (appended when all - * instructions in the block are processed) - */ - insertionBuffer.init(instructions); - } + if (!interval.canMaterialize() && interval.spillState() != SpillState.StartInMemory) { AllocatableValue fromLocation = interval.getSplitChildAtOpId(opId, OperandMode.DEF, allocator).location(); AllocatableValue toLocation = TraceLinearScan.canonicalSpillOpr(interval); if (!fromLocation.equals(toLocation)) { + if (!insertionBuffer.initialized()) { + /* + * prepare insertion buffer (appended when all + * instructions in the block are processed) + */ + insertionBuffer.init(instructions); + } + assert isRegister(fromLocation) : "from operand must be a register but is: " + fromLocation + " toLocation=" + toLocation + " spillState=" + interval.spillState(); assert isStackSlotValue(toLocation) : "to operand must be a stack slot";