diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/vec_shuffle-29.ll | 14 |
2 files changed, 15 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index f48d752..6ec97e2 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3677,7 +3677,7 @@ SDValue LowerVECTOR_SHUFFLEv8i16(SDValue V1, SDValue V2, ++V2InOrder; } else if (EltIdx < 8) { V1Elts.push_back(Elt); - V2Elts.push_back(DAG.getConstant(i+8, MaskEVT)); + V2Elts.push_back(DAG.getConstant(EltIdx+8, MaskEVT)); ++V1FromV1; } else { V1Elts.push_back(Elt); diff --git a/test/CodeGen/X86/vec_shuffle-29.ll b/test/CodeGen/X86/vec_shuffle-29.ll new file mode 100644 index 0000000..aac63c3 --- /dev/null +++ b/test/CodeGen/X86/vec_shuffle-29.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=sse41 -disable-mmx -o %t -f +; RUN: not grep pextrw %t +; RUN: grep pinsrw %t + +; Test for v8xi16 lowering where we extract the first element of the vector and +; placed it in the second element of the result. + +define void @test_cl(<8 x i16> addrspace(1)* %dest, <8 x i16> addrspace(1)* %old) nounwind { +entry: + %tmp3 = load <8 x i16> addrspace(1)* %old ; <<8 x i16>> [#uses=1] + %tmp6 = shufflevector <8 x i16> %tmp3, <8 x i16> < i16 0, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef >, <8 x i32> < i32 8, i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef > ; <<8 x i16>> [#uses=1] + store <8 x i16> %tmp6, <8 x i16> addrspace(1)* %dest + ret void +}
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