File: load-v4i8-improved.ll

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llvm-toolchain-9 1%3A9.0.1-16
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; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu < %s \
; RUN:   -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names | FileCheck --check-prefix=CHECK-LE \
; RUN:   -implicit-check-not vmrg -implicit-check-not=vperm %s
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu < %s \
; RUN:   -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names | FileCheck \
; RUN:   -implicit-check-not vmrg -implicit-check-not=vperm %s

define <16 x i8> @test(i32* %s, i32* %t) {
; CHECK-LE-LABEL: test:
; CHECK-LE:       # %bb.0: # %entry
; CHECK-LE-NEXT:    lfiwzx f0, 0, r3
; CHECK-LE-NEXT:    xxpermdi vs0, f0, f0, 2
; CHECK-LE-NEXT:    xxspltw v2, vs0, 3
; CHECK-LE-NEXT:    blr

; CHECK-LABEL: test:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    lfiwzx f0, 0, r3
; CHECK-NEXT:    xxsldwi vs0, f0, f0, 1
; CHECK-NEXT:    xxspltw v2, vs0, 0
; CHECK-NEXT:    blr
entry:
  %0 = bitcast i32* %s to <4 x i8>*
  %1 = load <4 x i8>, <4 x i8>* %0, align 4
  %2 = shufflevector <4 x i8> %1, <4 x i8> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
  ret <16 x i8> %2
}