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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=instcombine -S | FileCheck %s3 4define double @a(<1 x i64> %y) {5; CHECK-LABEL: @a(6; CHECK-NEXT: [[BC:%.*]] = bitcast <1 x i64> [[Y:%.*]] to <1 x double>7; CHECK-NEXT: [[C:%.*]] = extractelement <1 x double> [[BC]], i64 08; CHECK-NEXT: ret double [[C]]9;10 %c = bitcast <1 x i64> %y to double11 ret double %c12}13 14define i64 @b(<1 x i64> %y) {15; CHECK-LABEL: @b(16; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i64> [[Y:%.*]], i64 017; CHECK-NEXT: ret i64 [[TMP1]]18;19 %c = bitcast <1 x i64> %y to i6420 ret i64 %c21}22 23define <1 x i64> @c(double %y) {24; CHECK-LABEL: @c(25; CHECK-NEXT: [[C:%.*]] = bitcast double [[Y:%.*]] to <1 x i64>26; CHECK-NEXT: ret <1 x i64> [[C]]27;28 %c = bitcast double %y to <1 x i64>29 ret <1 x i64> %c30}31 32define <1 x i64> @d(i64 %y) {33; CHECK-LABEL: @d(34; CHECK-NEXT: [[C:%.*]] = insertelement <1 x i64> poison, i64 [[Y:%.*]], i64 035; CHECK-NEXT: ret <1 x i64> [[C]]36;37 %c = bitcast i64 %y to <1 x i64>38 ret <1 x i64> %c39}40 41 42; FP source is ok.43 44define <3 x i64> @bitcast_inselt_undef(double %x, i32 %idx) {45; CHECK-LABEL: @bitcast_inselt_undef(46; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x double> undef, double [[X:%.*]], i32 [[IDX:%.*]]47; CHECK-NEXT: [[I:%.*]] = bitcast <3 x double> [[TMP1]] to <3 x i64>48; CHECK-NEXT: ret <3 x i64> [[I]]49;50 %xb = bitcast double %x to i6451 %i = insertelement <3 x i64> undef, i64 %xb, i32 %idx52 ret <3 x i64> %i53}54 55; Integer source is ok; index is anything.56 57define <3 x float> @bitcast_inselt_undef_fp(i32 %x, i567 %idx) {58; CHECK-LABEL: @bitcast_inselt_undef_fp(59; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x i32> undef, i32 [[X:%.*]], i567 [[IDX:%.*]]60; CHECK-NEXT: [[I:%.*]] = bitcast <3 x i32> [[TMP1]] to <3 x float>61; CHECK-NEXT: ret <3 x float> [[I]]62;63 %xb = bitcast i32 %x to float64 %i = insertelement <3 x float> undef, float %xb, i567 %idx65 ret <3 x float> %i66}67 68define <vscale x 3 x float> @bitcast_inselt_undef_vscale(i32 %x, i567 %idx) {69; CHECK-LABEL: @bitcast_inselt_undef_vscale(70; CHECK-NEXT: [[TMP1:%.*]] = insertelement <vscale x 3 x i32> undef, i32 [[X:%.*]], i567 [[IDX:%.*]]71; CHECK-NEXT: [[I:%.*]] = bitcast <vscale x 3 x i32> [[TMP1]] to <vscale x 3 x float>72; CHECK-NEXT: ret <vscale x 3 x float> [[I]]73;74 %xb = bitcast i32 %x to float75 %i = insertelement <vscale x 3 x float> undef, float %xb, i567 %idx76 ret <vscale x 3 x float> %i77}78 79declare void @use(i64)80 81; Negative test - extra use prevents canonicalization82 83define <3 x i64> @bitcast_inselt_undef_extra_use(double %x, i32 %idx) {84; CHECK-LABEL: @bitcast_inselt_undef_extra_use(85; CHECK-NEXT: [[XB:%.*]] = bitcast double [[X:%.*]] to i6486; CHECK-NEXT: call void @use(i64 [[XB]])87; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> undef, i64 [[XB]], i32 [[IDX:%.*]]88; CHECK-NEXT: ret <3 x i64> [[I]]89;90 %xb = bitcast double %x to i6491 call void @use(i64 %xb)92 %i = insertelement <3 x i64> undef, i64 %xb, i32 %idx93 ret <3 x i64> %i94}95 96; Negative test - source type must be scalar97 98define <3 x i64> @bitcast_inselt_undef_vec_src(<2 x i32> %x, i32 %idx) {99; CHECK-LABEL: @bitcast_inselt_undef_vec_src(100; CHECK-NEXT: [[XB:%.*]] = bitcast <2 x i32> [[X:%.*]] to i64101; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> undef, i64 [[XB]], i32 [[IDX:%.*]]102; CHECK-NEXT: ret <3 x i64> [[I]]103;104 %xb = bitcast <2 x i32> %x to i64105 %i = insertelement <3 x i64> undef, i64 %xb, i32 %idx106 ret <3 x i64> %i107}108 109; Reduce number of casts110 111define <2 x i64> @PR45748(double %x, double %y) {112; CHECK-LABEL: @PR45748(113; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> poison, double [[X:%.*]], i64 0114; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[Y:%.*]], i64 1115; CHECK-NEXT: [[I1:%.*]] = bitcast <2 x double> [[TMP2]] to <2 x i64>116; CHECK-NEXT: ret <2 x i64> [[I1]]117;118 %xb = bitcast double %x to i64119 %i0 = insertelement <2 x i64> undef, i64 %xb, i32 0120 %yb = bitcast double %y to i64121 %i1 = insertelement <2 x i64> %i0, i64 %yb, i32 1122 ret <2 x i64> %i1123}124