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In bottom-up mode, defer the materialization of local constant values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103139 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -84,6 +84,17 @@ unsigned FastISel::getRegForValue(const Value *V) {
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if (Reg != 0)
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return Reg;
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// In bottom-up mode, just create the virtual register which will be used
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// to hold the value. It will be materialized later.
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if (IsBottomUp) {
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Reg = createResultReg(TLI.getRegClassFor(VT));
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if (isa<Instruction>(V))
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ValueMap[V] = Reg;
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else
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LocalValueMap[V] = Reg;
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return Reg;
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}
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return materializeRegForValue(V, VT);
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}
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