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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; FP source is ok.42 43define <3 x i64> @bitcast_inselt_undef(double %x, i32 %idx) {44; CHECK-LABEL: @bitcast_inselt_undef(45; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x double> poison, double [[X:%.*]], i32 [[IDX:%.*]]46; CHECK-NEXT: [[I:%.*]] = bitcast <3 x double> [[TMP1]] to <3 x i64>47; CHECK-NEXT: ret <3 x i64> [[I]]48;49 %xb = bitcast double %x to i6450 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx51 ret <3 x i64> %i52}53 54; Integer source is ok; index is anything.55 56define <3 x float> @bitcast_inselt_undef_fp(i32 %x, i567 %idx) {57; CHECK-LABEL: @bitcast_inselt_undef_fp(58; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x i32> poison, i32 [[X:%.*]], i567 [[IDX:%.*]]59; CHECK-NEXT: [[I:%.*]] = bitcast <3 x i32> [[TMP1]] to <3 x float>60; CHECK-NEXT: ret <3 x float> [[I]]61;62 %xb = bitcast i32 %x to float63 %i = insertelement <3 x float> poison, float %xb, i567 %idx64 ret <3 x float> %i65}66 67define <vscale x 3 x float> @bitcast_inselt_undef_vscale(i32 %x, i567 %idx) {68; CHECK-LABEL: @bitcast_inselt_undef_vscale(69; CHECK-NEXT: [[TMP1:%.*]] = insertelement <vscale x 3 x i32> poison, i32 [[X:%.*]], i567 [[IDX:%.*]]70; CHECK-NEXT: [[I:%.*]] = bitcast <vscale x 3 x i32> [[TMP1]] to <vscale x 3 x float>71; CHECK-NEXT: ret <vscale x 3 x float> [[I]]72;73 %xb = bitcast i32 %x to float74 %i = insertelement <vscale x 3 x float> poison, float %xb, i567 %idx75 ret <vscale x 3 x float> %i76}77 78declare void @use(i64)79 80; Negative test - extra use prevents canonicalization81 82define <3 x i64> @bitcast_inselt_undef_extra_use(double %x, i32 %idx) {83; CHECK-LABEL: @bitcast_inselt_undef_extra_use(84; CHECK-NEXT: [[XB:%.*]] = bitcast double [[X:%.*]] to i6485; CHECK-NEXT: call void @use(i64 [[XB]])86; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> poison, i64 [[XB]], i32 [[IDX:%.*]]87; CHECK-NEXT: ret <3 x i64> [[I]]88;89 %xb = bitcast double %x to i6490 call void @use(i64 %xb)91 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx92 ret <3 x i64> %i93}94 95; Negative test - source type must be scalar96 97define <3 x i64> @bitcast_inselt_undef_vec_src(<2 x i32> %x, i32 %idx) {98; CHECK-LABEL: @bitcast_inselt_undef_vec_src(99; CHECK-NEXT: [[XB:%.*]] = bitcast <2 x i32> [[X:%.*]] to i64100; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> poison, i64 [[XB]], i32 [[IDX:%.*]]101; CHECK-NEXT: ret <3 x i64> [[I]]102;103 %xb = bitcast <2 x i32> %x to i64104 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx105 ret <3 x i64> %i106}107 108; Reduce number of casts109 110define <2 x i64> @PR45748(double %x, double %y) {111; CHECK-LABEL: @PR45748(112; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> poison, double [[X:%.*]], i64 0113; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[Y:%.*]], i64 1114; CHECK-NEXT: [[I1:%.*]] = bitcast <2 x double> [[TMP2]] to <2 x i64>115; CHECK-NEXT: ret <2 x i64> [[I1]]116;117 %xb = bitcast double %x to i64118 %i0 = insertelement <2 x i64> poison, i64 %xb, i32 0119 %yb = bitcast double %y to i64120 %i1 = insertelement <2 x i64> %i0, i64 %yb, i32 1121 ret <2 x i64> %i1122}123