================
@@ -0,0 +1,65 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
UTC_ARGS: --version 6
+; RUN: llc -mtriple aarch64 -mattr=+f16f32dot %s -o - | FileCheck %s
+
+define <2 x float> @test_vdot_f32(<2 x float> %r, <4 x half> %a, <4 x half>
%b) {
+; CHECK-LABEL: test_vdot_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: fdot v0.2s, v1.4h, v2.4h
+; CHECK-NEXT: ret
+ %res = call <2 x float> @llvm.aarch64.neon.fdot.v2f32.v4f16(<2 x float> %r,
<4 x half> %a, <4 x half> %b)
+ ret <2 x float> %res
+}
+
+define <4 x float> @test_vdotq_f32(<4 x float> %r, <8 x half> %a, <8 x half>
%b) {
+; CHECK-LABEL: test_vdotq_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: fdot v0.4s, v1.8h, v2.8h
+; CHECK-NEXT: ret
+ %res = call <4 x float> @llvm.aarch64.neon.fdot.v4f32.v8f16(<4 x float> %r,
<8 x half> %a, <8 x half> %b)
+ ret <4 x float> %res
+}
+
+define <2 x float> @test_vdot_lane_f32(<2 x float> %r, <4 x half> %a, <4 x
half> %b) {
+; CHECK-LABEL: test_vdot_lane_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $d2 killed $d2 def $q2
+; CHECK-NEXT: fdot v0.2s, v1.4h, v2.2h[0]
+; CHECK-NEXT: ret
+ %lane = shufflevector <4 x half> %b, <4 x half> poison, <4 x i32>
zeroinitializer
+ %res = call <2 x float> @llvm.aarch64.neon.fdot.v2f32.v4f16(<2 x float> %r,
<4 x half> %a, <4 x half> %lane)
+ ret <2 x float> %res
+}
+
+define <4 x float> @test_vdotq_laneq_f32(<4 x float> %r, <8 x half> %a, <8 x
half> %b) {
+; CHECK-LABEL: test_vdotq_laneq_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: fdot v0.4s, v1.8h, v2.2h[3]
+; CHECK-NEXT: ret
+ %lane = shufflevector <8 x half> %b, <8 x half> poison, <8 x i32> <i32 3,
i32 3, i32 3, i32 3, i32 3, i32 3, i32 3, i32 3>
+ %res = call <4 x float> @llvm.aarch64.neon.fdot.v4f32.v8f16(<4 x float> %r,
<8 x half> %a, <8 x half> %lane)
+ ret <4 x float> %res
+}
+
+define <2 x float> @test_vdot_laneq_f32(<2 x float> %r, <4 x half> %a, <8 x
half> %b) {
+; CHECK-LABEL: test_vdot_laneq_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: fdot v0.2s, v1.4h, v2.2h[3]
+; CHECK-NEXT: ret
+ %lane = shufflevector <8 x half> %b, <8 x half> poison, <4 x i32> <i32 3,
i32 3, i32 3, i32 3>
+ %res = call <2 x float> @llvm.aarch64.neon.fdot.v2f32.v4f16(<2 x float> %r,
<4 x half> %a, <4 x half> %lane)
+ ret <2 x float> %res
+}
+
+define <4 x float> @test_vdotq_lane_f32(<4 x float> %r, <8 x half> %a, <4 x
half> %b) {
+; CHECK-LABEL: test_vdotq_lane_f32:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $d2 killed $d2 def $q2
+; CHECK-NEXT: fdot v0.4s, v1.8h, v2.2h[0]
+; CHECK-NEXT: ret
+ %lane = shufflevector <4 x half> %b, <4 x half> poison, <8 x i32>
zeroinitializer
+ %res = call <4 x float> @llvm.aarch64.neon.fdot.v4f32.v8f16(<4 x float> %r,
<8 x half> %a, <8 x half> %lane)
+ ret <4 x float> %res
+}
+
+declare <2 x float> @llvm.aarch64.neon.fdot.v2f32.v4f16(<2 x float>, <4 x
half>, <4 x half>)
+declare <4 x float> @llvm.aarch64.neon.fdot.v4f32.v8f16(<4 x float>, <8 x
half>, <8 x half>)
----------------
kmclaughlin-arm wrote:
nit: declarations can be removed
https://github.com/llvm/llvm-project/pull/189987
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