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| author | Tim Northover <tnorthover@apple.com> | 2014-05-22 07:41:37 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-05-22 07:41:37 +0000 |
| commit | 0f6272271e77b3b2b6325141c9798aed6ac966b8 (patch) | |
| tree | a657fb3cb01cfd41872ae87194542d9836cb4b40 | |
| parent | 71d04225cf752e0324e8ceb116d3618daec08e42 (diff) | |
| download | bcm5719-llvm-0f6272271e77b3b2b6325141c9798aed6ac966b8.tar.gz bcm5719-llvm-0f6272271e77b3b2b6325141c9798aed6ac966b8.zip | |
ARM64: assert if we see i64 -> i64 extend in the DAG.
Should be no change in behaviour, but it makes the intended
functionality a bit clearer and means we only have to reason about
real extend operations.
llvm-svn: 209409
| -rw-r--r-- | llvm/lib/Target/ARM64/ARM64ISelDAGToDAG.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/llvm/lib/Target/ARM64/ARM64ISelDAGToDAG.cpp b/llvm/lib/Target/ARM64/ARM64ISelDAGToDAG.cpp index 45a837e69f6..ce4203f321c 100644 --- a/llvm/lib/Target/ARM64/ARM64ISelDAGToDAG.cpp +++ b/llvm/lib/Target/ARM64/ARM64ISelDAGToDAG.cpp @@ -369,8 +369,7 @@ getExtendTypeForNode(SDValue N, bool IsLoadStore = false) { return ARM64_AM::SXTH; else if (SrcVT == MVT::i32) return ARM64_AM::SXTW; - else if (SrcVT == MVT::i64) - return ARM64_AM::SXTX; + assert(SrcVT != MVT::i64 && "extend from 64-bits?"); return ARM64_AM::InvalidShiftExtend; } else if (N.getOpcode() == ISD::ZERO_EXTEND || @@ -382,8 +381,7 @@ getExtendTypeForNode(SDValue N, bool IsLoadStore = false) { return ARM64_AM::UXTH; else if (SrcVT == MVT::i32) return ARM64_AM::UXTW; - else if (SrcVT == MVT::i64) - return ARM64_AM::UXTX; + assert(SrcVT != MVT::i64 && "extend from 64-bits?"); return ARM64_AM::InvalidShiftExtend; } else if (N.getOpcode() == ISD::AND) { |
