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[LoongArch] Pre-commit for lowering shuffle as lane permute and shuffle. #141205

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May 27, 2025
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[LoongArch] Pre-commit for lowering shuffle as lane permute and shuffle. #141205

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185 changes: 185 additions & 0 deletions llvm/test/CodeGen/LoongArch/lasx/shuffle-as-permute-and-shuffle.ll
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc --mtriple=loongarch64 --mattr=+lasx %s -o - | FileCheck %s

define <32 x i8> @shuffle_v32i8(<32 x i8> %a) {
; CHECK-LABEL: shuffle_v32i8:
; CHECK: # %bb.0:
; CHECK-NEXT: addi.d $sp, $sp, -64
; CHECK-NEXT: .cfi_def_cfa_offset 64
; CHECK-NEXT: st.d $ra, $sp, 56 # 8-byte Folded Spill
; CHECK-NEXT: st.d $fp, $sp, 48 # 8-byte Folded Spill
; CHECK-NEXT: .cfi_offset 1, -8
; CHECK-NEXT: .cfi_offset 22, -16
; CHECK-NEXT: addi.d $fp, $sp, 64
; CHECK-NEXT: .cfi_def_cfa 22, 0
; CHECK-NEXT: bstrins.d $sp, $zero, 4, 0
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvst $xr0, $sp, 0
; CHECK-NEXT: ld.h $a0, $sp, 16
; CHECK-NEXT: vinsgr2vr.h $vr0, $a0, 0
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 0
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 1
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 1
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 2
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 2
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 3
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 3
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 4
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 4
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 5
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 5
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 6
; CHECK-NEXT: vpickve2gr.h $a1, $vr1, 6
; CHECK-NEXT: vinsgr2vr.h $vr0, $a1, 7
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 0
; CHECK-NEXT: ld.h $a0, $sp, 18
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 1
; CHECK-NEXT: ld.h $a0, $sp, 20
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 2
; CHECK-NEXT: ld.h $a0, $sp, 22
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 3
; CHECK-NEXT: ld.h $a0, $sp, 24
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 4
; CHECK-NEXT: ld.h $a0, $sp, 26
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 5
; CHECK-NEXT: ld.h $a0, $sp, 28
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 6
; CHECK-NEXT: ld.h $a0, $sp, 30
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: xvori.b $xr1, $xr0, 0
; CHECK-NEXT: xvpermi.q $xr1, $xr0, 1
; CHECK-NEXT: vinsgr2vr.h $vr1, $a0, 7
; CHECK-NEXT: xvpermi.q $xr0, $xr1, 2
; CHECK-NEXT: addi.d $sp, $fp, -64
; CHECK-NEXT: ld.d $fp, $sp, 48 # 8-byte Folded Reload
; CHECK-NEXT: ld.d $ra, $sp, 56 # 8-byte Folded Reload
; CHECK-NEXT: addi.d $sp, $sp, 64
; CHECK-NEXT: ret
%shuffle = shufflevector <32 x i8> %a, <32 x i8> poison, <32 x i32> <i32 16, i32 17, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
ret <32 x i8> %shuffle
}


define <16 x i16> @shuffle_v16i16(<16 x i16> %a) {
; CHECK-LABEL: shuffle_v16i16:
; CHECK: # %bb.0:
; CHECK-NEXT: xvpickve2gr.w $a0, $xr0, 4
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a0, 0
; CHECK-NEXT: xvpickve2gr.w $a1, $xr0, 0
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a1, 1
; CHECK-NEXT: xvpickve2gr.w $a1, $xr0, 1
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a1, 2
; CHECK-NEXT: xvpickve2gr.w $a1, $xr0, 2
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a1, 3
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a0, 4
; CHECK-NEXT: xvpickve2gr.w $a0, $xr0, 5
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a0, 5
; CHECK-NEXT: xvpickve2gr.w $a0, $xr0, 6
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a0, 6
; CHECK-NEXT: xvpickve2gr.w $a0, $xr0, 7
; CHECK-NEXT: xvinsgr2vr.w $xr1, $a0, 7
; CHECK-NEXT: xvori.b $xr0, $xr1, 0
; CHECK-NEXT: ret
%shuffle = shufflevector <16 x i16> %a, <16 x i16> poison, <16 x i32> <i32 8, i32 9, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
ret <16 x i16> %shuffle
}

define <8 x i32> @shuffle_v8i32(<8 x i32> %a) {
; CHECK-LABEL: shuffle_v8i32:
; CHECK: # %bb.0:
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 2
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 0
; CHECK-NEXT: xvpickve2gr.d $a1, $xr0, 0
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a1, 1
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 2
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 3
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 3
; CHECK-NEXT: xvori.b $xr0, $xr1, 0
; CHECK-NEXT: ret
%shuffle = shufflevector <8 x i32> %a, <8 x i32> poison, <8 x i32> <i32 4, i32 5, i32 0, i32 1, i32 4, i32 5, i32 6, i32 7>
ret <8 x i32> %shuffle
}

define <4 x i64> @shuffle_v4i64(<4 x i64> %a) {
; CHECK-LABEL: shuffle_v4i64:
; CHECK: # %bb.0:
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 3
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 0
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 1
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 1
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 2
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 2
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 0
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 3
; CHECK-NEXT: xvori.b $xr0, $xr1, 0
; CHECK-NEXT: ret
%shuffle = shufflevector <4 x i64> %a, <4 x i64> poison, <4 x i32> <i32 3, i32 1, i32 2, i32 0>
ret <4 x i64> %shuffle
}

define <8 x float> @shuffle_v8f32(<8 x float> %a) {
; CHECK-LABEL: shuffle_v8f32:
; CHECK: # %bb.0:
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 2
; CHECK-NEXT: movgr2fr.d $fa1, $a0
; CHECK-NEXT: movfr2gr.d $a0, $fa1
; CHECK-NEXT: xvpickve2gr.d $a1, $xr0, 0
; CHECK-NEXT: movgr2fr.d $fa2, $a1
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 0
; CHECK-NEXT: movfr2gr.d $a1, $fa2
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a1, 1
; CHECK-NEXT: xvpickve2gr.d $a1, $xr0, 3
; CHECK-NEXT: movgr2fr.d $fa0, $a1
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 2
; CHECK-NEXT: movfr2gr.d $a0, $fa0
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 3
; CHECK-NEXT: xvori.b $xr0, $xr1, 0
; CHECK-NEXT: ret
%shuffle = shufflevector <8 x float> %a, <8 x float> poison, <8 x i32> <i32 4, i32 5, i32 0, i32 1, i32 4, i32 5, i32 6, i32 7>
ret <8 x float> %shuffle
}

define <4 x double> @shuffle_v4f64(<4 x double> %a) {
; CHECK-LABEL: shuffle_v4f64:
; CHECK: # %bb.0:
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 3
; CHECK-NEXT: movgr2fr.d $fa1, $a0
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 1
; CHECK-NEXT: movgr2fr.d $fa2, $a0
; CHECK-NEXT: movfr2gr.d $a0, $fa1
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 0
; CHECK-NEXT: movfr2gr.d $a0, $fa2
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 1
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 2
; CHECK-NEXT: movgr2fr.d $fa2, $a0
; CHECK-NEXT: xvpickve2gr.d $a0, $xr0, 0
; CHECK-NEXT: movgr2fr.d $fa0, $a0
; CHECK-NEXT: movfr2gr.d $a0, $fa2
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 2
; CHECK-NEXT: movfr2gr.d $a0, $fa0
; CHECK-NEXT: xvinsgr2vr.d $xr1, $a0, 3
; CHECK-NEXT: xvori.b $xr0, $xr1, 0
; CHECK-NEXT: ret
%shuffle = shufflevector <4 x double> %a, <4 x double> poison, <4 x i32> <i32 3, i32 1, i32 2, i32 0>
ret <4 x double> %shuffle
}