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[SelectionDAG] Make an argument optional in RFV::getCopyToRegs. NFC.

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Summary:
We default the value argument to nullptr.  The only use of the value is
in diagnosePossiblyInvalidConstraint and that seems to be resilient to
it being nullptr.

Reviewers: atrick, reames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9479

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236555 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjoy Das 2015-05-05 23:06:57 +00:00
parent 7aab5ee93d
commit 000e7d10e8
1 changed files with 6 additions and 5 deletions
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11
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
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@ -935,13 +935,14 @@ struct RegsForValue {
SDValue &Chain, SDValue *Flag,
const Value *V = nullptr) const;
/// getCopyToRegs - Emit a series of CopyToReg nodes that copies the
/// specified value into the registers specified by this object. This uses
/// Chain/Flag as the input and updates them for the output Chain/Flag.
/// If the Flag pointer is NULL, no flag is used.
/// getCopyToRegs - Emit a series of CopyToReg nodes that copies the specified
/// value into the registers specified by this object. This uses Chain/Flag
/// as the input and updates them for the output Chain/Flag. If the Flag
/// pointer is nullptr, no flag is used. If V is not nullptr, then it is used
/// in printing better diagnostic messages on error.
void
getCopyToRegs(SDValue Val, SelectionDAG &DAG, SDLoc dl, SDValue &Chain,
SDValue *Flag, const Value *V,
SDValue *Flag, const Value *V = nullptr,
ISD::NodeType PreferredExtendType = ISD::ANY_EXTEND) const;
/// AddInlineAsmOperands - Add this value to the specified inlineasm node