llvm-project/llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll

; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -mattr=+power8-vector < %s | FileCheck %s
; RUN: llc -mcpu=pwr7 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck -check-prefix=CHECK-PWR7 %s

define void @VPKUDUM_unary(<2 x i64>* %A) {
entry:
        %tmp = load <2 x i64>, <2 x i64>* %A
        %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
        %tmp3 = extractelement <4 x i32> %tmp2, i32 1
        %tmp4 = extractelement <4 x i32> %tmp2, i32 3
        %tmp5 = insertelement <4 x i32> undef, i32 %tmp3, i32 0
        %tmp6 = insertelement <4 x i32> %tmp5, i32 %tmp4, i32 1
        %tmp7 = insertelement <4 x i32> %tmp6, i32 %tmp3, i32 2
        %tmp8 = insertelement <4 x i32> %tmp7, i32 %tmp4, i32 3
        %tmp9 = bitcast <4 x i32> %tmp8 to <2 x i64>
        store <2 x i64> %tmp9, <2 x i64>* %A
        ret void
}

; CHECK-LABEL: @VPKUDUM_unary
; CHECK-NOT:   vperm
; CHECK-NOT:   vmrglw
; CHECK-NOT:   vmrghw
; CHECK:       vpkudum
; CHECK-PWR7:  vmrglw
; CHECK-PWR7:  vmrghw
; CHECK-PWR7:  vmrglw

define void @VPKUDUM(<2 x i64>* %A, <2 x i64>* %B) {
entry:
        %tmp = load <2 x i64>, <2 x i64>* %A
        %tmp2 = bitcast <2 x i64> %tmp to <4 x i32>
        %tmp3 = load <2 x i64>, <2 x i64>* %B
        %tmp4 = bitcast <2 x i64> %tmp3 to <4 x i32>
        %tmp5 = extractelement <4 x i32> %tmp2, i32 1
        %tmp6 = extractelement <4 x i32> %tmp2, i32 3
        %tmp7 = extractelement <4 x i32> %tmp4, i32 1
        %tmp8 = extractelement <4 x i32> %tmp4, i32 3
        %tmp9 = insertelement <4 x i32> undef, i32 %tmp5, i32 0
        %tmp10 = insertelement <4 x i32> %tmp9, i32 %tmp6, i32 1
        %tmp11 = insertelement <4 x i32> %tmp10, i32 %tmp7, i32 2
        %tmp12 = insertelement <4 x i32> %tmp11, i32 %tmp8, i32 3
        %tmp13 = bitcast <4 x i32> %tmp12 to <2 x i64>
        store <2 x i64> %tmp13, <2 x i64>* %A
        ret void
}

; CHECK-LABEL: @VPKUDUM
; CHECK-NOT:   vperm
; CHECK-NOT:   vmrglw
; CHECK-NOT:   vmrghw
; CHECK:       vpkudum
; CHECK-PWR7:  vmrglw
; CHECK-PWR7:  vmrghw
; CHECK-PWR7:  vmrglw