diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/scalarize-bitcast.ll | 29 |
2 files changed, 31 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 1a3370f0a06..0c37f526292 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -7961,7 +7961,8 @@ SDValue SelectionDAGLegalize::ScalarizeVectorOp(SDValue Op) { break; case ISD::BIT_CONVERT: { SDValue Op0 = Op.getOperand(0); - if (Op0.getValueType().getVectorNumElements() == 1) + if (Op0.getValueType().isVector() && + Op0.getValueType().getVectorNumElements() == 1) Op0 = ScalarizeVectorOp(Op0); Result = DAG.getNode(ISD::BIT_CONVERT, dl, NewVT, Op0); break; diff --git a/llvm/test/CodeGen/X86/scalarize-bitcast.ll b/llvm/test/CodeGen/X86/scalarize-bitcast.ll new file mode 100644 index 00000000000..a07f9396040 --- /dev/null +++ b/llvm/test/CodeGen/X86/scalarize-bitcast.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | llc -march=x86-64 +; PR3886 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "x86_64-pc-linux-gnu" + +define void @mmxCombineMaskU(i32* nocapture %src, i32* nocapture %mask) nounwind { +entry: + %tmp1 = load i32* %src ; <i32> [#uses=1] + %0 = insertelement <2 x i32> undef, i32 %tmp1, i32 0 ; <<2 x i32>> [#uses=1] + %1 = insertelement <2 x i32> %0, i32 0, i32 1 ; <<2 x i32>> [#uses=1] + %conv.i.i = bitcast <2 x i32> %1 to <1 x i64> ; <<1 x i64>> [#uses=1] + %tmp2.i.i = extractelement <1 x i64> %conv.i.i, i32 0 ; <i64> [#uses=1] + %tmp22.i = bitcast i64 %tmp2.i.i to <1 x i64> ; <<1 x i64>> [#uses=1] + %tmp15.i = extractelement <1 x i64> %tmp22.i, i32 0 ; <i64> [#uses=1] + %conv.i26.i = bitcast i64 %tmp15.i to <8 x i8> ; <<8 x i8>> [#uses=1] + %shuffle.i.i = shufflevector <8 x i8> %conv.i26.i, <8 x i8> <i8 0, i8 0, i8 0, i8 0, i8 undef, i8 undef, i8 undef, i8 undef>, <8 x i32> <i32 0, i32 8, i32 1, i32 9, i32 2, i32 10, i32 3, i32 11> ; <<8 x i8>> [#uses=1] + %conv6.i.i = bitcast <8 x i8> %shuffle.i.i to <1 x i64> ; <<1 x i64>> [#uses=1] + %tmp12.i.i = extractelement <1 x i64> %conv6.i.i, i32 0 ; <i64> [#uses=1] + %tmp10.i = bitcast i64 %tmp12.i.i to <1 x i64> ; <<1 x i64>> [#uses=1] + %tmp24.i = extractelement <1 x i64> %tmp10.i, i32 0 ; <i64> [#uses=1] + %tmp10 = bitcast i64 %tmp24.i to <1 x i64> ; <<1 x i64>> [#uses=1] + %tmp7 = extractelement <1 x i64> %tmp10, i32 0 ; <i64> [#uses=1] + %call6 = tail call i32 (...)* @store8888(i64 %tmp7) ; <i32> [#uses=1] + store i32 %call6, i32* %src + ret void +} + +declare i32 @store8888(...) |
