[PATCH] D60319: [ARM] [FIX] Add missing f16 vector operations lowering

[Diogo N. Sampaio via Phabricator via llvm-commits]

dnsampaio updated this revision to Diff 194114.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60319/new/

https://reviews.llvm.org/D60319

Files:
  lib/Target/ARM/ARMISelDAGToDAG.cpp
  lib/Target/ARM/ARMInstrNEON.td
  test/CodeGen/ARM/armv8.2a-fp16-vector-intrinsics.ll


Index: test/CodeGen/ARM/armv8.2a-fp16-vector-intrinsics.ll
===================================================================
--- test/CodeGen/ARM/armv8.2a-fp16-vector-intrinsics.ll
+++ test/CodeGen/ARM/armv8.2a-fp16-vector-intrinsics.ll
@@ -1225,6 +1225,42 @@
   ret <8 x half> %shuffle.i
 }
 
+define <4 x half> @test_vld_dup1_4xhalf(half* %b) {
+; CHECK-LABEL: test_vld_dup1_4xhalf:
+; CHECK:       vld1.16 {d0[]}, [r0:16]
+; CHECK-NEXT:  bx      lr
+
+entry:
+  %b1 = load half, half* %b, align 2
+  %vecinit = insertelement <4 x half> undef, half %b1, i32 0
+  %vecinit2 = insertelement <4 x half> %vecinit, half %b1, i32 1
+  %vecinit3 = insertelement <4 x half> %vecinit2, half %b1, i32 2
+  %vecinit4 = insertelement <4 x half> %vecinit3, half %b1, i32 3
+  ret <4 x half> %vecinit4
+}
+
+define <8 x half> @test_vld_dup1_8xhalf(half* %b) local_unnamed_addr {
+; CHECK-LABEL: test_vld_dup1_8xhalf:
+; CHECK:       vld1.16 {d0[], d1[]}, [r0:16]
+; CHECK-NEXT:  bx      lr
+
+entry:
+  %b1 = load half, half* %b, align 2
+  %vecinit = insertelement <8 x half> undef, half %b1, i32 0
+  %vecinit8 = shufflevector <8 x half> %vecinit, <8 x half> undef, <8 x i32> zeroinitializer
+  ret <8 x half> %vecinit8
+}
+
+define <8 x half> @test_shufflevector8xhalf(<4 x half> %a) {
+; CHECK-LABEL: test_shufflevector8xhalf:
+; CHECK:       vmov.f64        d1, d0
+; CHECK-NEXT:  bx      lr
+
+entry:
+  %r = shufflevector <4 x half> %a, <4 x half> %a, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x half> %r
+}
+
 declare <4 x half> @llvm.fabs.v4f16(<4 x half>)
 declare <8 x half> @llvm.fabs.v8f16(<8 x half>)
 declare <4 x i16> @llvm.arm.neon.vcvtas.v4i16.v4f16(<4 x half>)
Index: lib/Target/ARM/ARMInstrNEON.td
===================================================================
--- lib/Target/ARM/ARMInstrNEON.td
+++ lib/Target/ARM/ARMInstrNEON.td
@@ -7576,6 +7576,8 @@
           (REG_SEQUENCE QPR, DPR:$Dn, dsub_0, DPR:$Dm, dsub_1)>;
 def : Pat<(v4f32 (concat_vectors DPR:$Dn, DPR:$Dm)),
           (REG_SEQUENCE QPR, DPR:$Dn, dsub_0, DPR:$Dm, dsub_1)>;
+def : Pat<(v8f16 (concat_vectors DPR:$Dn, DPR:$Dm)),
+          (REG_SEQUENCE QPR, DPR:$Dn, dsub_0, DPR:$Dm, dsub_1)>;
 
 //===----------------------------------------------------------------------===//
 // Assembler aliases
Index: lib/Target/ARM/ARMISelDAGToDAG.cpp
===================================================================
--- lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -2212,7 +2212,10 @@
   case MVT::v8i8:
   case MVT::v16i8: OpcodeIndex = 0; break;
   case MVT::v4i16:
-  case MVT::v8i16: OpcodeIndex = 1; break;
+  case MVT::v8i16:
+  case MVT::v4f16:
+  case MVT::v8f16:
+                  OpcodeIndex = 1; break;
   case MVT::v2f32:
   case MVT::v2i32:
   case MVT::v4f32:


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