Index: llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp =================================================================== --- llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp +++ llvm/trunk/lib/Target/AArch64/AArch64TargetTransformInfo.cpp @@ -313,6 +313,8 @@ } // All other insert/extracts cost this much. + if (ST->isKryo()) + return 2; return 3; } Index: llvm/trunk/test/Analysis/CostModel/AArch64/kryo.ll =================================================================== --- llvm/trunk/test/Analysis/CostModel/AArch64/kryo.ll +++ llvm/trunk/test/Analysis/CostModel/AArch64/kryo.ll @@ -0,0 +1,26 @@ +; RUN: opt < %s -cost-model -analyze -mcpu=kryo | FileCheck %s + +target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128" +target triple = "aarch64--linux-gnu" + +; CHECK-LABEL: vectorInstrCost +define void @vectorInstrCost() { + + ; Vector extracts - extracting the first element should have a zero cost; + ; all other elements should have a cost of two. + ; + ; CHECK: cost of 0 {{.*}} extractelement <2 x i64> undef, i32 0 + ; CHECK: cost of 2 {{.*}} extractelement <2 x i64> undef, i32 1 + %t1 = extractelement <2 x i64> undef, i32 0 + %t2 = extractelement <2 x i64> undef, i32 1 + + ; Vector inserts - inserting the first element should have a zero cost; all + ; other elements should have a cost of two. + ; + ; CHECK: cost of 0 {{.*}} insertelement <2 x i64> undef, i64 undef, i32 0 + ; CHECK: cost of 2 {{.*}} insertelement <2 x i64> undef, i64 undef, i32 1 + %t3 = insertelement <2 x i64> undef, i64 undef, i32 0 + %t4 = insertelement <2 x i64> undef, i64 undef, i32 1 + + ret void +}