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| author | Stuart Hastings <stuart@apple.com> | 2011-03-02 19:36:30 +0000 |
|---|---|---|
| committer | Stuart Hastings <stuart@apple.com> | 2011-03-02 19:36:30 +0000 |
| commit | 7e33418671728359325f51faf69a14f630ba7f91 (patch) | |
| tree | ee4c40a584d3e467536873bdbe5477f7eff676ab /lib/CodeGen | |
| parent | f1cc70ca9356b23369b689e17b89c5596d4c913f (diff) | |
| download | external_llvm-7e33418671728359325f51faf69a14f630ba7f91.zip external_llvm-7e33418671728359325f51faf69a14f630ba7f91.tar.gz external_llvm-7e33418671728359325f51faf69a14f630ba7f91.tar.bz2 | |
Can't introduce floating-point immediate constants after legalization.
Radar 9056407.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126864 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 7957098..4c70bc3 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -5142,7 +5142,9 @@ SDValue DAGCombiner::visitSINT_TO_FP(SDNode *N) { EVT OpVT = N0.getValueType(); // fold (sint_to_fp c1) -> c1fp - if (N0C && OpVT != MVT::ppcf128) + if (N0C && OpVT != MVT::ppcf128 && + // ...but only if the target supports immediate floating-point values + (Level == llvm::Unrestricted || TLI.isOperationLegalOrCustom(llvm::ISD::ConstantFP, VT))) return DAG.getNode(ISD::SINT_TO_FP, N->getDebugLoc(), VT, N0); // If the input is a legal type, and SINT_TO_FP is not legal on this target, @@ -5164,7 +5166,9 @@ SDValue DAGCombiner::visitUINT_TO_FP(SDNode *N) { EVT OpVT = N0.getValueType(); // fold (uint_to_fp c1) -> c1fp - if (N0C && OpVT != MVT::ppcf128) + if (N0C && OpVT != MVT::ppcf128 && + // ...but only if the target supports immediate floating-point values + (Level == llvm::Unrestricted || TLI.isOperationLegalOrCustom(llvm::ISD::ConstantFP, VT))) return DAG.getNode(ISD::UINT_TO_FP, N->getDebugLoc(), VT, N0); // If the input is a legal type, and UINT_TO_FP is not legal on this target, |