diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 8 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/sse3-avx-addsub-2.ll | 2 |
2 files changed, 2 insertions, 8 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index b5bf866b22d..6465fececc8 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -6485,11 +6485,6 @@ static SDValue matchAddSub(const BuildVectorSDNode *BV, SelectionDAG &DAG, assert((VT == MVT::v8f32 || VT == MVT::v4f64 || VT == MVT::v4f32 || VT == MVT::v2f64) && "build_vector with an invalid type found!"); - // Don't try to emit a VSELECT that cannot be lowered into a blend. - const TargetLowering &TLI = DAG.getTargetLoweringInfo(); - if (!TLI.isOperationLegalOrCustom(ISD::VSELECT, VT)) - return SDValue(); - // Odd-numbered elements in the input build vector are obtained from // adding two integer/float elements. // Even-numbered elements in the input build vector are obtained from @@ -6562,8 +6557,7 @@ static SDValue matchAddSub(const BuildVectorSDNode *BV, SelectionDAG &DAG, std::swap(ExpectedOpcode, NextExpectedOpcode); } - // Don't try to fold this build_vector into a VSELECT if it has - // too many UNDEF operands. + // Don't try to fold this build_vector into an ADDSUB if the inputs are undef. if (AddFound && SubFound && InVec0.getOpcode() != ISD::UNDEF && InVec1.getOpcode() != ISD::UNDEF) return DAG.getNode(X86ISD::ADDSUB, DL, VT, InVec0, InVec1); diff --git a/llvm/test/CodeGen/X86/sse3-avx-addsub-2.ll b/llvm/test/CodeGen/X86/sse3-avx-addsub-2.ll index b7706cc34bb..5b2de28c0f5 100644 --- a/llvm/test/CodeGen/X86/sse3-avx-addsub-2.ll +++ b/llvm/test/CodeGen/X86/sse3-avx-addsub-2.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 | FileCheck %s -check-prefix=CHECK -check-prefix=SSE +; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s -check-prefix=CHECK -check-prefix=SSE ; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7-avx | FileCheck %s -check-prefix=CHECK -check-prefix=AVX |
