Add tests for NEON encoding of vsubhn and vrsubhn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117269 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/MC/ARM/neon-sub-encoding.ll b/test/MC/ARM/neon-sub-encoding.ll
index bbb7ef3a8c63402f797d1d886499d132c685e494..94a2639d202c77c0a2f8bec2ba5ec5e748b952f2 100644 (file)
--- a/test/MC/ARM/neon-sub-encoding.ll
+++ b/test/MC/ARM/neon-sub-encoding.ll
@@ -472,3 +472,65 @@ define <2 x i64> @vqsubu_2xi64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
        %tmp3 = call <2 x i64> @llvm.arm.neon.vqsubu.v2i64(<2 x i64> %tmp1, <2 x i64> %tmp2)
        ret <2 x i64> %tmp3
 }
+
+declare <8 x i8>  @llvm.arm.neon.vsubhn.v8i8(<8 x i16>, <8 x i16>) nounwind readnone
+declare <4 x i16> @llvm.arm.neon.vsubhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone
+declare <2 x i32> @llvm.arm.neon.vsubhn.v2i32(<2 x i64>, <2 x i64>) nounwind readnone
+
+; CHECK: vsubhn_8xi16
+define <8 x i8> @vsubhn_8xi16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+       %tmp1 = load <8 x i16>* %A
+       %tmp2 = load <8 x i16>* %B
+; CHECK: vsubhn.i16    d16, q8, q9     @ encoding: [0xa2,0x06,0xc0,0xf2]
+       %tmp3 = call <8 x i8> @llvm.arm.neon.vsubhn.v8i8(<8 x i16> %tmp1, <8 x i16> %tmp2)
+       ret <8 x i8> %tmp3
+}
+
+; CHECK: vsubhn_4xi32
+define <4 x i16> @vsubhn_4xi32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+       %tmp1 = load <4 x i32>* %A
+       %tmp2 = load <4 x i32>* %B
+; CHECK: vsubhn.i32    d16, q8, q9     @ encoding: [0xa2,0x06,0xd0,0xf2]
+       %tmp3 = call <4 x i16> @llvm.arm.neon.vsubhn.v4i16(<4 x i32> %tmp1, <4 x i32> %tmp2)
+       ret <4 x i16> %tmp3
+}
+
+; CHECK: vsubhn_2xi64
+define <2 x i32> @vsubhn_2xi64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
+       %tmp1 = load <2 x i64>* %A
+       %tmp2 = load <2 x i64>* %B
+; CHECK: vsubhn.i64    d16, q8, q9     @ encoding: [0xa2,0x06,0xe0,0xf2]
+       %tmp3 = call <2 x i32> @llvm.arm.neon.vsubhn.v2i32(<2 x i64> %tmp1, <2 x i64> %tmp2)
+       ret <2 x i32> %tmp3
+}
+
+declare <8 x i8>  @llvm.arm.neon.vrsubhn.v8i8(<8 x i16>, <8 x i16>) nounwind readnone
+declare <4 x i16> @llvm.arm.neon.vrsubhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone
+declare <2 x i32> @llvm.arm.neon.vrsubhn.v2i32(<2 x i64>, <2 x i64>) nounwind readnone
+
+; CHECK: vrsubhn_8xi16
+define <8 x i8> @vrsubhn_8xi16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+       %tmp1 = load <8 x i16>* %A
+       %tmp2 = load <8 x i16>* %B
+; CHECK: vrsubhn.i16   d16, q8, q9     @ encoding: [0xa2,0x06,0xc0,0xf3]
+       %tmp3 = call <8 x i8> @llvm.arm.neon.vrsubhn.v8i8(<8 x i16> %tmp1, <8 x i16> %tmp2)
+       ret <8 x i8> %tmp3
+}
+
+; CHECK: vrsubhn_4xi32
+define <4 x i16> @vrsubhn_4xi32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+       %tmp1 = load <4 x i32>* %A
+       %tmp2 = load <4 x i32>* %B
+; CHECK: vrsubhn.i32   d16, q8, q9     @ encoding: [0xa2,0x06,0xd0,0xf3]
+       %tmp3 = call <4 x i16> @llvm.arm.neon.vrsubhn.v4i16(<4 x i32> %tmp1, <4 x i32> %tmp2)
+       ret <4 x i16> %tmp3
+}
+
+; CHECK: vrsubhn_2xi64
+define <2 x i32> @vrsubhn_2xi64(<2 x i64>* %A, <2 x i64>* %B) nounwind {
+       %tmp1 = load <2 x i64>* %A
+       %tmp2 = load <2 x i64>* %B
+; CHECK: vrsubhn.i64   d16, q8, q9     @ encoding: [0xa2,0x06,0xe0,0xf3]
+       %tmp3 = call <2 x i32> @llvm.arm.neon.vrsubhn.v2i32(<2 x i64> %tmp1, <2 x i64> %tmp2)
+       ret <2 x i32> %tmp3
+}