[llvm] r205208 - ARM64: add extra scalar neg pattern & tests.

[Tim Northover]

Author: tnorthover
Date: Mon Mar 31 10:46:42 2014
New Revision: 205208

URL: http://llvm.org/viewvc/llvm-project?rev=205208&view=rev
Log:
ARM64: add extra scalar neg pattern & tests.

Added:
    llvm/trunk/test/CodeGen/ARM64/neg.ll
Modified:
    llvm/trunk/lib/Target/ARM64/ARM64InstrInfo.td

Modified: llvm/trunk/lib/Target/ARM64/ARM64InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM64/ARM64InstrInfo.td?rev=205208&r1=205207&r2=205208&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM64/ARM64InstrInfo.td (original)
+++ llvm/trunk/lib/Target/ARM64/ARM64InstrInfo.td Mon Mar 31 10:46:42 2014
@@ -2563,7 +2563,8 @@ defm FCVTZU : SIMDTwoScalarSD<   1, 1, 0
 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>;

Added: llvm/trunk/test/CodeGen/ARM64/neg.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM64/neg.ll?rev=205208&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/ARM64/neg.ll (added)
+++ llvm/trunk/test/CodeGen/ARM64/neg.ll Mon Mar 31 10:46:42 2014
@@ -0,0 +1,71 @@
+; 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
+}