defm FRECPE : SIMDTwoScalarSD< 0, 1, 0b11101, "frecpe">;
defm FRECPX : SIMDTwoScalarSD< 0, 1, 0b11111, "frecpx">;
defm FRSQRTE : SIMDTwoScalarSD< 1, 1, 0b11101, "frsqrte">;
-defm NEG : SIMDTwoScalarD< 1, 0b01011, "neg">;
+defm NEG : SIMDTwoScalarD< 1, 0b01011, "neg",
+ UnOpFrag<(sub immAllZerosV, node:$LHS)> >;
defm SCVTF : SIMDTwoScalarCVTSD< 0, 0, 0b11101, "scvtf", ARM64sitof>;
defm SQABS : SIMDTwoScalarBHSD< 0, 0b00111, "sqabs", int_arm64_neon_sqabs>;
defm SQNEG : SIMDTwoScalarBHSD< 1, 0b00111, "sqneg", int_arm64_neon_sqneg>;
--- /dev/null
+; RUN: llc -mtriple=arm64-linux-gnu -o - %s | FileCheck %s
+
+define i32 @test_neg_i32(i32 %in) {
+; CHECK-LABEL: test_neg_i32:
+; CHECK: neg w0, w0
+ %res = sub i32 0, %in
+ ret i32 %res
+}
+
+define i64 @test_neg_i64(i64 %in) {
+; CHECK-LABEL: test_neg_i64:
+; CHECK: neg x0, x0
+ %res = sub i64 0, %in
+ ret i64 %res
+}
+
+define <8 x i8> @test_neg_v8i8(<8 x i8> %in) {
+; CHECK-LABEL: test_neg_v8i8:
+; CHECK: neg v0.8b, v0.8b
+ %res = sub <8 x i8> zeroinitializer, %in
+ ret <8 x i8> %res
+}
+
+define <4 x i16> @test_neg_v4i16(<4 x i16> %in) {
+; CHECK-LABEL: test_neg_v4i16:
+; CHECK: neg v0.4h, v0.4h
+ %res = sub <4 x i16> zeroinitializer, %in
+ ret <4 x i16> %res
+}
+
+define <2 x i32> @test_neg_v2i32(<2 x i32> %in) {
+; CHECK-LABEL: test_neg_v2i32:
+; CHECK: neg v0.2s, v0.2s
+ %res = sub <2 x i32> zeroinitializer, %in
+ ret <2 x i32> %res
+}
+
+define <16 x i8> @test_neg_v16i8(<16 x i8> %in) {
+; CHECK-LABEL: test_neg_v16i8:
+; CHECK: neg v0.16b, v0.16b
+ %res = sub <16 x i8> zeroinitializer, %in
+ ret <16 x i8> %res
+}
+
+define <8 x i16> @test_neg_v8i16(<8 x i16> %in) {
+; CHECK-LABEL: test_neg_v8i16:
+; CHECK: neg v0.8h, v0.8h
+ %res = sub <8 x i16> zeroinitializer, %in
+ ret <8 x i16> %res
+}
+
+define <4 x i32> @test_neg_v4i32(<4 x i32> %in) {
+; CHECK-LABEL: test_neg_v4i32:
+; CHECK: neg v0.4s, v0.4s
+ %res = sub <4 x i32> zeroinitializer, %in
+ ret <4 x i32> %res
+}
+
+define <2 x i64> @test_neg_v2i64(<2 x i64> %in) {
+; CHECK-LABEL: test_neg_v2i64:
+; CHECK: neg v0.2d, v0.2d
+ %res = sub <2 x i64> zeroinitializer, %in
+ ret <2 x i64> %res
+}
+
+define <1 x i64> @test_neg_v1i64(<1 x i64> %in) {
+; CHECK-LABEL: test_neg_v1i64:
+; CHECK: neg d0, d0
+ %res = sub <1 x i64> zeroinitializer, %in
+ ret <1 x i64> %res
+}