--- a/test/CodeGen/AArch64/arm64-st1.ll	Fri Feb 16 19:10:49 2018 +0900
+++ b/test/CodeGen/AArch64/arm64-st1.ll	Sat Feb 17 09:57:20 2018 +0900
@@ -1,4 +1,6 @@
 ; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple -verify-machineinstrs | FileCheck %s
+; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple -verify-machineinstrs -mcpu=exynos-m1 | FileCheck --check-prefix=EXYNOS %s
+; The instruction latencies of Exynos-M1 trigger the transform we see under the Exynos check.
 
 define void @st1lane_16b(<16 x i8> %A, i8* %D) {
 ; CHECK-LABEL: st1lane_16b
@@ -375,6 +377,10 @@
 define void @st2_8b(<8 x i8> %A, <8 x i8> %B, i8* %P) nounwind {
 ; CHECK-LABEL: st2_8b
 ; CHECK: st2.8b
+; EXYNOS-LABEL: st2_8b
+; EXYNOS: zip1.8b
+; EXYNOS: zip2.8b
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v8i8.p0i8(<8 x i8> %A, <8 x i8> %B, i8* %P)
 	ret void
 }
@@ -389,6 +395,17 @@
 define void @st4_8b(<8 x i8> %A, <8 x i8> %B, <8 x i8> %C, <8 x i8> %D, i8* %P) nounwind {
 ; CHECK-LABEL: st4_8b
 ; CHECK: st4.8b
+; EXYNOS-LABEL: st4_8b
+; EXYNOS: zip1.8b
+; EXYNOS: zip2.8b
+; EXYNOS: zip1.8b
+; EXYNOS: zip2.8b
+; EXYNOS: zip1.8b
+; EXYNOS: zip2.8b
+; EXYNOS: stp
+; EXYNOS: zip1.8b
+; EXYNOS: zip2.8b
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v8i8.p0i8(<8 x i8> %A, <8 x i8> %B, <8 x i8> %C, <8 x i8> %D, i8* %P)
 	ret void
 }
@@ -400,6 +417,10 @@
 define void @st2_16b(<16 x i8> %A, <16 x i8> %B, i8* %P) nounwind {
 ; CHECK-LABEL: st2_16b
 ; CHECK: st2.16b
+; EXYNOS-LABEL: st2_16b
+; EXYNOS: zip1.16b
+; EXYNOS: zip2.16b
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v16i8.p0i8(<16 x i8> %A, <16 x i8> %B, i8* %P)
 	ret void
 }
@@ -414,6 +435,17 @@
 define void @st4_16b(<16 x i8> %A, <16 x i8> %B, <16 x i8> %C, <16 x i8> %D, i8* %P) nounwind {
 ; CHECK-LABEL: st4_16b
 ; CHECK: st4.16b
+; EXYNOS-LABEL: st4_16b
+; EXYNOS: zip1.16b
+; EXYNOS: zip2.16b
+; EXYNOS: zip1.16b
+; EXYNOS: zip2.16b
+; EXYNOS: zip1.16b
+; EXYNOS: zip2.16b
+; EXYNOS: stp
+; EXYNOS: zip1.16b
+; EXYNOS: zip2.16b
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v16i8.p0i8(<16 x i8> %A, <16 x i8> %B, <16 x i8> %C, <16 x i8> %D, i8* %P)
 	ret void
 }
@@ -425,6 +457,10 @@
 define void @st2_4h(<4 x i16> %A, <4 x i16> %B, i16* %P) nounwind {
 ; CHECK-LABEL: st2_4h
 ; CHECK: st2.4h
+; EXYNOS-LABEL: st2_4h
+; EXYNOS: zip1.4h
+; EXYNOS: zip2.4h
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v4i16.p0i16(<4 x i16> %A, <4 x i16> %B, i16* %P)
 	ret void
 }
@@ -439,6 +475,17 @@
 define void @st4_4h(<4 x i16> %A, <4 x i16> %B, <4 x i16> %C, <4 x i16> %D, i16* %P) nounwind {
 ; CHECK-LABEL: st4_4h
 ; CHECK: st4.4h
+; EXYNOS-LABEL: st4_4h
+; EXYNOS: zip1.4h
+; EXYNOS: zip2.4h
+; EXYNOS: zip1.4h
+; EXYNOS: zip2.4h
+; EXYNOS: zip1.4h
+; EXYNOS: zip2.4h
+; EXYNOS: stp
+; EXYNOS: zip1.4h
+; EXYNOS: zip2.4h
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v4i16.p0i16(<4 x i16> %A, <4 x i16> %B, <4 x i16> %C, <4 x i16> %D, i16* %P)
 	ret void
 }
@@ -450,6 +497,10 @@
 define void @st2_8h(<8 x i16> %A, <8 x i16> %B, i16* %P) nounwind {
 ; CHECK-LABEL: st2_8h
 ; CHECK: st2.8h
+; EXYNOS-LABEL: st2_8h
+; EXYNOS: zip1.8h
+; EXYNOS: zip2.8h
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v8i16.p0i16(<8 x i16> %A, <8 x i16> %B, i16* %P)
 	ret void
 }
@@ -464,6 +515,17 @@
 define void @st4_8h(<8 x i16> %A, <8 x i16> %B, <8 x i16> %C, <8 x i16> %D, i16* %P) nounwind {
 ; CHECK-LABEL: st4_8h
 ; CHECK: st4.8h
+; EXYNOS-LABEL: st4_8h
+; EXYNOS: zip1.8h
+; EXYNOS: zip2.8h
+; EXYNOS: zip1.8h
+; EXYNOS: zip2.8h
+; EXYNOS: zip1.8h
+; EXYNOS: zip2.8h
+; EXYNOS: stp
+; EXYNOS: zip1.8h
+; EXYNOS: zip2.8h
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v8i16.p0i16(<8 x i16> %A, <8 x i16> %B, <8 x i16> %C, <8 x i16> %D, i16* %P)
 	ret void
 }
@@ -475,6 +537,10 @@
 define void @st2_2s(<2 x i32> %A, <2 x i32> %B, i32* %P) nounwind {
 ; CHECK-LABEL: st2_2s
 ; CHECK: st2.2s
+; EXYNOS-LABEL: st2_2s
+; EXYNOS: zip1.2s
+; EXYNOS: zip2.2s
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v2i32.p0i32(<2 x i32> %A, <2 x i32> %B, i32* %P)
 	ret void
 }
@@ -489,6 +555,17 @@
 define void @st4_2s(<2 x i32> %A, <2 x i32> %B, <2 x i32> %C, <2 x i32> %D, i32* %P) nounwind {
 ; CHECK-LABEL: st4_2s
 ; CHECK: st4.2s
+; EXYNOS-LABEL: st4_2s
+; EXYNOS: zip1.2s
+; EXYNOS: zip2.2s
+; EXYNOS: zip1.2s
+; EXYNOS: zip2.2s
+; EXYNOS: zip1.2s
+; EXYNOS: zip2.2s
+; EXYNOS: stp
+; EXYNOS: zip1.2s
+; EXYNOS: zip2.2s
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v2i32.p0i32(<2 x i32> %A, <2 x i32> %B, <2 x i32> %C, <2 x i32> %D, i32* %P)
 	ret void
 }
@@ -500,6 +577,10 @@
 define void @st2_4s(<4 x i32> %A, <4 x i32> %B, i32* %P) nounwind {
 ; CHECK-LABEL: st2_4s
 ; CHECK: st2.4s
+; EXYNOS-LABEL: st2_4s
+; EXYNOS: zip1.4s
+; EXYNOS: zip2.4s
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v4i32.p0i32(<4 x i32> %A, <4 x i32> %B, i32* %P)
 	ret void
 }
@@ -514,6 +595,17 @@
 define void @st4_4s(<4 x i32> %A, <4 x i32> %B, <4 x i32> %C, <4 x i32> %D, i32* %P) nounwind {
 ; CHECK-LABEL: st4_4s
 ; CHECK: st4.4s
+; EXYNOS-LABEL: st4_4s
+; EXYNOS: zip1.4s
+; EXYNOS: zip2.4s
+; EXYNOS: zip1.4s
+; EXYNOS: zip2.4s
+; EXYNOS: zip1.4s
+; EXYNOS: zip2.4s
+; EXYNOS: stp
+; EXYNOS: zip1.4s
+; EXYNOS: zip2.4s
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v4i32.p0i32(<4 x i32> %A, <4 x i32> %B, <4 x i32> %C, <4 x i32> %D, i32* %P)
 	ret void
 }
@@ -551,6 +643,10 @@
 define void @st2_2d(<2 x i64> %A, <2 x i64> %B, i64* %P) nounwind {
 ; CHECK-LABEL: st2_2d
 ; CHECK: st2.2d
+; EXYNOS-LABEL: st2_2d
+; EXYNOS: zip1.2d
+; EXYNOS: zip2.2d
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st2.v2i64.p0i64(<2 x i64> %A, <2 x i64> %B, i64* %P)
 	ret void
 }
@@ -565,6 +661,17 @@
 define void @st4_2d(<2 x i64> %A, <2 x i64> %B, <2 x i64> %C, <2 x i64> %D, i64* %P) nounwind {
 ; CHECK-LABEL: st4_2d
 ; CHECK: st4.2d
+; EXYNOS-LABEL: st4_2d
+; EXYNOS: zip1.2d
+; EXYNOS: zip2.2d
+; EXYNOS: zip1.2d
+; EXYNOS: zip2.2d
+; EXYNOS: zip1.2d
+; EXYNOS: zip2.2d
+; EXYNOS: stp
+; EXYNOS: zip1.2d
+; EXYNOS: zip2.2d
+; EXYNOS: stp
 	call void @llvm.aarch64.neon.st4.v2i64.p0i64(<2 x i64> %A, <2 x i64> %B, <2 x i64> %C, <2 x i64> %D, i64* %P)
 	ret void
 }