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-rw-r--r--llvm/lib/Target/AArch64/AArch64Subtarget.cpp1
-rw-r--r--llvm/test/Analysis/CostModel/AArch64/falkor.ll26
2 files changed, 27 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
index f58bbbd2613..03e01329e03 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -71,6 +71,7 @@ void AArch64Subtarget::initializeProperties() {
break;
case Falkor:
MaxInterleaveFactor = 4;
+ VectorInsertExtractBaseCost = 2;
break;
case Kryo:
MaxInterleaveFactor = 4;
diff --git a/llvm/test/Analysis/CostModel/AArch64/falkor.ll b/llvm/test/Analysis/CostModel/AArch64/falkor.ll
new file mode 100644
index 00000000000..e9563191f07
--- /dev/null
+++ b/llvm/test/Analysis/CostModel/AArch64/falkor.ll
@@ -0,0 +1,26 @@
+; RUN: opt < %s -cost-model -analyze -mcpu=falkor | 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
+}
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