1 files changed, 43 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2010-05-21-BuildVector.ll b/test/CodeGen/ARM/2010-05-21-BuildVector.ll
new file mode 100644
index 000000000000..6b194902036a
--- /dev/null
+++ b/test/CodeGen/ARM/2010-05-21-BuildVector.ll
@@ -0,0 +1,43 @@
+; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s
+; Radar 7872877
+
+define arm_apcscc void @test(float* %fltp, i32 %packedValue, float* %table) nounwind {
+entry:
+  %0 = load float* %fltp
+  %1 = insertelement <4 x float> undef, float %0, i32 0
+  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> zeroinitializer
+  %3 = shl i32 %packedValue, 16
+  %4 = ashr i32 %3, 30
+  %.sum = add i32 %4, 4
+  %5 = getelementptr inbounds float* %table, i32 %.sum
+;CHECK: vldr.32 s
+  %6 = load float* %5, align 4
+  %tmp11 = insertelement <4 x float> undef, float %6, i32 0
+  %7 = shl i32 %packedValue, 18
+  %8 = ashr i32 %7, 30
+  %.sum12 = add i32 %8, 4
+  %9 = getelementptr inbounds float* %table, i32 %.sum12
+;CHECK: vldr.32 s
+  %10 = load float* %9, align 4
+  %tmp9 = insertelement <4 x float> %tmp11, float %10, i32 1
+  %11 = shl i32 %packedValue, 20
+  %12 = ashr i32 %11, 30
+  %.sum13 = add i32 %12, 4
+  %13 = getelementptr inbounds float* %table, i32 %.sum13
+;CHECK: vldr.32 s
+  %14 = load float* %13, align 4
+  %tmp7 = insertelement <4 x float> %tmp9, float %14, i32 2
+  %15 = shl i32 %packedValue, 22
+  %16 = ashr i32 %15, 30
+  %.sum14 = add i32 %16, 4
+  %17 = getelementptr inbounds float* %table, i32 %.sum14
+;CHECK: vldr.32 s
+  %18 = load float* %17, align 4
+  %tmp5 = insertelement <4 x float> %tmp7, float %18, i32 3
+  %19 = fmul <4 x float> %tmp5, %2
+  %20 = bitcast float* %fltp to i8*
+  tail call void @llvm.arm.neon.vst1.v4f32(i8* %20, <4 x float> %19)
+  ret void
+}
+
+declare void @llvm.arm.neon.vst1.v4f32(i8*, <4 x float>) nounwind