1 ; RUN: opt -S -instcombine %s | FileCheck %s 2 3 define <1 x i8> @test1(<8 x i8> %in) { 4 ; CHECK-LABEL: @test1 5 ; CHECK: shufflevector <8 x i8> %in, <8 x i8> undef, <1 x i32> <i32 5> 6 %val = extractelement <8 x i8> %in, i32 5 7 %vec = insertelement <1 x i8> undef, i8 %val, i32 0 8 ret <1 x i8> %vec 9 } 10 11 define <4 x i16> @test2(<8 x i16> %in, <8 x i16> %in2) { 12 ; CHECK-LABEL: @test2 13 ; CHECK: shufflevector <8 x i16> %in2, <8 x i16> %in, <4 x i32> <i32 11, i32 9, i32 0, i32 10> 14 %elt0 = extractelement <8 x i16> %in, i32 3 15 %elt1 = extractelement <8 x i16> %in, i32 1 16 %elt2 = extractelement <8 x i16> %in2, i32 0 17 %elt3 = extractelement <8 x i16> %in, i32 2 18 19 %vec.0 = insertelement <4 x i16> undef, i16 %elt0, i32 0 20 %vec.1 = insertelement <4 x i16> %vec.0, i16 %elt1, i32 1 21 %vec.2 = insertelement <4 x i16> %vec.1, i16 %elt2, i32 2 22 %vec.3 = insertelement <4 x i16> %vec.2, i16 %elt3, i32 3 23 24 ret <4 x i16> %vec.3 25 } 26 27 define <2 x i64> @test_vcopyq_lane_p64(<2 x i64> %a, <1 x i64> %b) { 28 ; CHECK-LABEL: @test_vcopyq_lane_p64 29 ; CHECK-NEXT: extractelement 30 ; CHECK-NEXT: insertelement 31 ; CHECK-NEXT: ret <2 x i64> %res 32 %elt = extractelement <1 x i64> %b, i32 0 33 %res = insertelement <2 x i64> %a, i64 %elt, i32 1 34 ret <2 x i64> %res 35 } 36 37 ; PR2109: https://llvm.org/bugs/show_bug.cgi?id=2109 38 39 define <4 x float> @widen_extract2(<4 x float> %ins, <2 x float> %ext) { 40 ; CHECK-LABEL: @widen_extract2( 41 ; CHECK-NEXT: extractelement 42 ; CHECK-NEXT: extractelement 43 ; CHECK-NEXT: insertelement 44 ; CHECK-NEXT: insertelement 45 ; CHECK-NEXT: ret <4 x float> %i2 46 %e1 = extractelement <2 x float> %ext, i32 0 47 %e2 = extractelement <2 x float> %ext, i32 1 48 %i1 = insertelement <4 x float> %ins, float %e1, i32 1 49 %i2 = insertelement <4 x float> %i1, float %e2, i32 3 50 ret <4 x float> %i2 51 } 52 53 define <4 x float> @widen_extract3(<4 x float> %ins, <3 x float> %ext) { 54 ; CHECK-LABEL: @widen_extract3( 55 ; CHECK-NEXT: extractelement 56 ; CHECK-NEXT: extractelement 57 ; CHECK-NEXT: extractelement 58 ; CHECK-NEXT: insertelement 59 ; CHECK-NEXT: insertelement 60 ; CHECK-NEXT: insertelement 61 ; CHECK-NEXT: ret <4 x float> %i3 62 %e1 = extractelement <3 x float> %ext, i32 0 63 %e2 = extractelement <3 x float> %ext, i32 1 64 %e3 = extractelement <3 x float> %ext, i32 2 65 %i1 = insertelement <4 x float> %ins, float %e1, i32 2 66 %i2 = insertelement <4 x float> %i1, float %e2, i32 1 67 %i3 = insertelement <4 x float> %i2, float %e3, i32 0 68 ret <4 x float> %i3 69 } 70 71 define <8 x float> @too_wide(<8 x float> %ins, <2 x float> %ext) { 72 ; CHECK-LABEL: @too_wide( 73 ; CHECK-NEXT: extractelement 74 ; CHECK-NEXT: insertelement 75 ; CHECK-NEXT: ret <8 x float> %i1 76 %e1 = extractelement <2 x float> %ext, i32 0 77 %i1 = insertelement <8 x float> %ins, float %e1, i32 2 78 ret <8 x float> %i1 79 } 80 81
