1 files changed, 83 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/vecreduce-fadd-legalization.ll b/llvm/test/CodeGen/AArch64/vecreduce-fadd-legalization.ll
new file mode 100644
index 00000000000..86511daadff
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/vecreduce-fadd-legalization.ll
@@ -0,0 +1,83 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -mattr=+neon | FileCheck %s --check-prefix=CHECK
+
+declare half @llvm.experimental.vector.reduce.fadd.f16.v1f16(half, <1 x half>)
+declare float @llvm.experimental.vector.reduce.fadd.f32.v1f32(float, <1 x float>)
+declare double @llvm.experimental.vector.reduce.fadd.f64.v1f64(double, <1 x double>)
+declare fp128 @llvm.experimental.vector.reduce.fadd.f128.v1f128(fp128, <1 x fp128>)
+
+declare float @llvm.experimental.vector.reduce.fadd.f32.v3f32(float, <3 x float>)
+declare fp128 @llvm.experimental.vector.reduce.fadd.f128.v2f128(fp128, <2 x fp128>)
+declare float @llvm.experimental.vector.reduce.fadd.f32.v16f32(float, <16 x float>)
+
+define half @test_v1f16(<1 x half> %a) nounwind {
+; CHECK-LABEL: test_v1f16:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ret
+  %b = call fast nnan half @llvm.experimental.vector.reduce.fadd.f16.v1f16(half 0.0, <1 x half> %a)
+  ret half %b
+}
+
+define float @test_v1f32(<1 x float> %a) nounwind {
+; CHECK-LABEL: test_v1f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    // kill: def $d0 killed $d0 def $q0
+; CHECK-NEXT:    // kill: def $s0 killed $s0 killed $q0
+; CHECK-NEXT:    ret
+  %b = call fast nnan float @llvm.experimental.vector.reduce.fadd.f32.v1f32(float 0.0, <1 x float> %a)
+  ret float %b
+}
+
+define double @test_v1f64(<1 x double> %a) nounwind {
+; CHECK-LABEL: test_v1f64:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ret
+  %b = call fast nnan double @llvm.experimental.vector.reduce.fadd.f64.v1f64(double 0.0, <1 x double> %a)
+  ret double %b
+}
+
+define fp128 @test_v1f128(<1 x fp128> %a) nounwind {
+; CHECK-LABEL: test_v1f128:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ret
+  %b = call fast nnan fp128 @llvm.experimental.vector.reduce.fadd.f128.v1f128(fp128 zeroinitializer, <1 x fp128> %a)
+  ret fp128 %b
+}
+
+define float @test_v3f32(<3 x float> %a) nounwind {
+; CHECK-LABEL: test_v3f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fmov s1, wzr
+; CHECK-NEXT:    mov v0.s[3], v1.s[0]
+; CHECK-NEXT:    ext v1.16b, v0.16b, v0.16b, #8
+; CHECK-NEXT:    fadd v0.2s, v0.2s, v1.2s
+; CHECK-NEXT:    faddp s0, v0.2s
+; CHECK-NEXT:    ret
+  %b = call fast nnan float @llvm.experimental.vector.reduce.fadd.f32.v3f32(float 0.0, <3 x float> %a)
+  ret float %b
+}
+
+define fp128 @test_v2f128(<2 x fp128> %a) nounwind {
+; CHECK-LABEL: test_v2f128:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
+; CHECK-NEXT:    bl __addtf3
+; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
+; CHECK-NEXT:    ret
+  %b = call fast nnan fp128 @llvm.experimental.vector.reduce.fadd.f128.v2f128(fp128 zeroinitializer, <2 x fp128> %a)
+  ret fp128 %b
+}
+
+define float @test_v16f32(<16 x float> %a) nounwind {
+; CHECK-LABEL: test_v16f32:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    fadd v1.4s, v1.4s, v3.4s
+; CHECK-NEXT:    fadd v0.4s, v0.4s, v2.4s
+; CHECK-NEXT:    fadd v0.4s, v0.4s, v1.4s
+; CHECK-NEXT:    ext v1.16b, v0.16b, v0.16b, #8
+; CHECK-NEXT:    fadd v0.2s, v0.2s, v1.2s
+; CHECK-NEXT:    faddp s0, v0.2s
+; CHECK-NEXT:    ret
+  %b = call fast nnan float @llvm.experimental.vector.reduce.fadd.f32.v16f32(float 0.0, <16 x float> %a)
+  ret float %b
+}