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Add a comment to CreateRegForValue that clarifies the handling of

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aggregate types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-04-28 18:19:43 +00:00
parent 0fe00906c8
commit 10a6b7ab65
1 changed files with 4 additions and 0 deletions
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4
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@@ -369,6 +369,10 @@ FunctionLoweringInfo::FunctionLoweringInfo(TargetLowering &tli,
/// CreateRegForValue - Allocate the appropriate number of virtual registers of
/// the correctly promoted or expanded types. Assign these registers
/// consecutive vreg numbers and return the first assigned number.
///
/// In the case that the given value has struct or array type, this function
/// will assign registers for each member or element.
///
unsigned FunctionLoweringInfo::CreateRegForValue(const Value *V) {
SmallVector<MVT::ValueType, 4> ValueVTs;
ComputeValueVTs(TLI, V->getType(), ValueVTs);