diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index 2113051815c..b19d5cb7714 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -253,6 +253,7 @@ int X86TTIImpl::getArithmeticInstrCost( { ISD::MUL, MVT::v32i8, 13 }, // extend/pmullw/trunc sequence. { ISD::MUL, MVT::v16i8, 5 }, // extend/pmullw/trunc sequence. + { ISD::MUL, MVT::v16i32, 1 }, // pmulld { ISD::MUL, MVT::v8i64, 8 } // 3*pmuludq/3*shift/2*add }; @@ -338,6 +339,7 @@ int X86TTIImpl::getArithmeticInstrCost( { ISD::MUL, MVT::v32i8, 17 }, // extend/pmullw/trunc sequence. { ISD::MUL, MVT::v16i8, 7 }, // extend/pmullw/trunc sequence. + { ISD::MUL, MVT::v8i32, 1 }, // pmulld { ISD::MUL, MVT::v4i64, 8 }, // 3*pmuludq/3*shift/2*add { ISD::FDIV, MVT::f32, 7 }, // Haswell from http://www.agner.org/ @@ -474,6 +476,8 @@ int X86TTIImpl::getArithmeticInstrCost( { ISD::SRA, MVT::v16i16, 2*14 }, // pblendvb sequence. { ISD::SRA, MVT::v4i32, 12 }, // Shift each lane + blend. { ISD::SRA, MVT::v8i32, 2*12 }, // Shift each lane + blend. + + { ISD::MUL, MVT::v4i32, 1 } // pmulld }; if (ST->hasSSE41()) { @@ -504,6 +508,7 @@ int X86TTIImpl::getArithmeticInstrCost( { ISD::SRA, MVT::v4i64, 2*12 }, // srl/xor/sub sequence. { ISD::MUL, MVT::v16i8, 12 }, // extend/pmullw/trunc sequence. + { ISD::MUL, MVT::v4i32, 6 }, // 3*pmuludq/4*shuffle { ISD::MUL, MVT::v2i64, 8 }, // 3*pmuludq/3*shift/2*add { ISD::FDIV, MVT::f32, 23 }, // Pentium IV from http://www.agner.org/ @@ -562,12 +567,6 @@ int X86TTIImpl::getArithmeticInstrCost( return LT.first * Entry->Cost; } - // Special lowering of v4i32 mul on sse2, sse3: Lower v4i32 mul as 2x shuffle, - // 2x pmuludq, 2x shuffle. - if (ISD == ISD::MUL && LT.second == MVT::v4i32 && ST->hasSSE2() && - !ST->hasSSE41()) - return LT.first * 6; - static const CostTblEntry SSE1FloatCostTable[] = { { ISD::FDIV, MVT::f32, 17 }, // Pentium III from http://www.agner.org/ { ISD::FDIV, MVT::v4f32, 34 }, // Pentium III from http://www.agner.org/ |
