Add missing test case from r228046

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228182 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/PowerPC/vec_popcnt.ll

@@ -0,0 +1,72 @@
+; Check the vecpopcnt* instructions that were added in P8
+; In addition, check the conversions to/from the v2i64 VMX register that was also added in P8.
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 -mattr=-vsx < %s | FileCheck %s
+
+declare <16 x i8> @llvm.ctpop.v16i8(<16 x i8>) nounwind readnone
+declare <8 x i16> @llvm.ctpop.v8i16(<8 x i16>) nounwind readnone
+declare <4 x i32> @llvm.ctpop.v4i32(<4 x i32>) nounwind readnone
+declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>) nounwind readnone
+
+define <16 x i8> @test_v16i8_v2i64(<2 x i64> %x) nounwind readnone {
+       %tmp  = bitcast <2 x i64> %x to <16 x i8>;
+       %vcnt = tail call <16 x i8> @llvm.ctpop.v16i8(<16 x i8> %tmp)
+       ret <16 x i8> %vcnt
+; CHECK: @test_v16i8_v2i64
+; CHECK: vpopcntb 2, 2
+; CHECK: blr
+}
+
+define <8 x i16> @test_v8i16_v2i64(<2 x i64> %x) nounwind readnone {
+       %tmp = bitcast <2 x i64> %x to <8 x i16>
+       %vcnt = tail call <8 x i16> @llvm.ctpop.v8i16(<8 x i16> %tmp)
+       ret <8 x i16> %vcnt
+; CHECK: @test_v8i16_v2i64
+; CHECK: vpopcnth 2, 2
+; CHECK: blr
+}
+
+define <4 x i32> @test_v4i32_v2i64(<2 x i64> %x) nounwind readnone {
+       %tmp = bitcast <2 x i64> %x to <4 x i32>
+       %vcnt = tail call <4 x i32> @llvm.ctpop.v4i32(<4 x i32> %tmp)
+       ret <4 x i32> %vcnt
+; CHECK: @test_v4i32_v2i64
+; CHECK: vpopcntw 2, 2
+; CHECK: blr
+}
+
+define <2 x i64> @test_v2i64_v2i64(<2 x i64> %x) nounwind readnone {
+       %vcnt = tail call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %x)
+       ret <2 x i64> %vcnt
+; CHECK: @test_v2i64_v2i64
+; CHECK: vpopcntd 2, 2
+; CHECK: blr
+}
+
+define <2 x i64> @test_v2i64_v4i32(<4 x i32> %x) nounwind readnone {
+       %tmp = bitcast <4 x i32> %x to <2 x i64>
+       %vcnt = tail call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %tmp)
+       ret <2 x i64> %vcnt
+; CHECK: @test_v2i64_v4i32
+; CHECK: vpopcntd 2, 2
+; CHECK: blr
+}
+
+
+define <2 x i64> @test_v2i64_v8i16(<8 x i16> %x) nounwind readnone {
+       %tmp = bitcast <8 x i16> %x to <2 x i64>
+       %vcnt = tail call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %tmp)
+       ret <2 x i64> %vcnt
+; CHECK: @test_v2i64_v8i16
+; CHECK: vpopcntd 2, 2
+; CHECK: blr
+}
+
+define <2 x i64> @test_v2i64_v16i8(<16 x i8> %x) nounwind readnone {
+       %tmp = bitcast <16 x i8> %x to <2 x i64>
+       %vcnt = tail call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %tmp)
+       ret <2 x i64> %vcnt
+; CHECK: @test_v2i64_v16i8
+; CHECK: vpopcntd 2, 2
+; CHECK: blr
+}