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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes=instcombine -S | FileCheck %s3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"4 5declare void @use(i8)6declare void @use16(i16)7 8define i1 @testi16i8(i16 %add) {9; CHECK-LABEL: @testi16i8(10; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD:%.*]], 12811; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], 25612; CHECK-NEXT: ret i1 [[CMP_NOT_I]]13;14 %sh = lshr i16 %add, 815 %conv.i = trunc i16 %sh to i816 %conv1.i = trunc i16 %add to i817 %shr2.i = ashr i8 %conv1.i, 718 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i19 ret i1 %cmp.not.i20}21 22define i1 @testi16i8_com(i16 %add) {23; CHECK-LABEL: @testi16i8_com(24; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD:%.*]], 12825; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], 25626; CHECK-NEXT: ret i1 [[CMP_NOT_I]]27;28 %sh = lshr i16 %add, 829 %conv.i = trunc i16 %sh to i830 %conv1.i = trunc i16 %add to i831 %shr2.i = ashr i8 %conv1.i, 732 %cmp.not.i = icmp eq i8 %conv.i, %shr2.i33 ret i1 %cmp.not.i34}35 36define i1 @testi16i8_ne(i16 %add) {37; CHECK-LABEL: @testi16i8_ne(38; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD:%.*]], -12839; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], -25640; CHECK-NEXT: ret i1 [[CMP_NOT_I]]41;42 %sh = lshr i16 %add, 843 %conv.i = trunc i16 %sh to i844 %conv1.i = trunc i16 %add to i845 %shr2.i = ashr i8 %conv1.i, 746 %cmp.not.i = icmp ne i8 %shr2.i, %conv.i47 ret i1 %cmp.not.i48}49 50define i1 @testi16i8_ne_com(i16 %add) {51; CHECK-LABEL: @testi16i8_ne_com(52; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD:%.*]], -12853; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], -25654; CHECK-NEXT: ret i1 [[CMP_NOT_I]]55;56 %sh = lshr i16 %add, 857 %conv.i = trunc i16 %sh to i858 %conv1.i = trunc i16 %add to i859 %shr2.i = ashr i8 %conv1.i, 760 %cmp.not.i = icmp ne i8 %conv.i, %shr2.i61 ret i1 %cmp.not.i62}63 64define i1 @testi64i32(i64 %add) {65; CHECK-LABEL: @testi64i32(66; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD:%.*]], 214748364867; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 429496729668; CHECK-NEXT: ret i1 [[CMP_NOT_I]]69;70 %sh = lshr i64 %add, 3271 %conv.i = trunc i64 %sh to i3272 %conv1.i = trunc i64 %add to i3273 %shr2.i = ashr i32 %conv1.i, 3174 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i75 ret i1 %cmp.not.i76}77 78define i1 @testi64i32_ne(i64 %add) {79; CHECK-LABEL: @testi64i32_ne(80; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD:%.*]], -214748364881; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], -429496729682; CHECK-NEXT: ret i1 [[CMP_NOT_I]]83;84 %sh = lshr i64 %add, 3285 %conv.i = trunc i64 %sh to i3286 %conv1.i = trunc i64 %add to i3287 %shr2.i = ashr i32 %conv1.i, 3188 %cmp.not.i = icmp ne i32 %shr2.i, %conv.i89 ret i1 %cmp.not.i90}91 92; Negative tests93 94define i1 @testi32i8(i32 %add) {95; CHECK-LABEL: @testi32i8(96; CHECK-NEXT: [[SH:%.*]] = lshr i32 [[ADD:%.*]], 897; CHECK-NEXT: [[CONV_I:%.*]] = trunc i32 [[SH]] to i898; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i32 [[ADD]] to i899; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7100; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]]101; CHECK-NEXT: ret i1 [[CMP_NOT_I]]102;103 %sh = lshr i32 %add, 8104 %conv.i = trunc i32 %sh to i8105 %conv1.i = trunc i32 %add to i8106 %shr2.i = ashr i8 %conv1.i, 7107 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i108 ret i1 %cmp.not.i109}110 111define i1 @wrongimm1(i16 %add) {112; CHECK-LABEL: @wrongimm1(113; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 7114; CHECK-NEXT: [[CONV_I:%.*]] = trunc i16 [[SH]] to i8115; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD]] to i8116; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7117; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]]118; CHECK-NEXT: ret i1 [[CMP_NOT_I]]119;120 %sh = lshr i16 %add, 7121 %conv.i = trunc i16 %sh to i8122 %conv1.i = trunc i16 %add to i8123 %shr2.i = ashr i8 %conv1.i, 7124 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i125 ret i1 %cmp.not.i126}127 128define i1 @wrongimm2(i16 %add) {129; CHECK-LABEL: @wrongimm2(130; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 8131; CHECK-NEXT: [[CONV_I:%.*]] = trunc nuw i16 [[SH]] to i8132; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD]] to i8133; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 6134; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]]135; CHECK-NEXT: ret i1 [[CMP_NOT_I]]136;137 %sh = lshr i16 %add, 8138 %conv.i = trunc i16 %sh to i8139 %conv1.i = trunc i16 %add to i8140 %shr2.i = ashr i8 %conv1.i, 6141 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i142 ret i1 %cmp.not.i143}144 145define i1 @slt(i64 %add) {146; CHECK-LABEL: @slt(147; CHECK-NEXT: [[SH:%.*]] = lshr i64 [[ADD:%.*]], 32148; CHECK-NEXT: [[CONV_I:%.*]] = trunc nuw i64 [[SH]] to i32149; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD]] to i32150; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i32 [[CONV1_I]], 31151; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp slt i32 [[SHR2_I]], [[CONV_I]]152; CHECK-NEXT: ret i1 [[CMP_NOT_I]]153;154 %sh = lshr i64 %add, 32155 %conv.i = trunc i64 %sh to i32156 %conv1.i = trunc i64 %add to i32157 %shr2.i = ashr i32 %conv1.i, 31158 %cmp.not.i = icmp slt i32 %shr2.i, %conv.i159 ret i1 %cmp.not.i160}161 162; Use checks163 164define i1 @extrause_a(i16 %add) {165; CHECK-LABEL: @extrause_a(166; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD:%.*]] to i8167; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7168; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD]], 128169; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], 256170; CHECK-NEXT: call void @use(i8 [[SHR2_I]])171; CHECK-NEXT: ret i1 [[CMP_NOT_I]]172;173 %sh = lshr i16 %add, 8174 %conv.i = trunc i16 %sh to i8175 %conv1.i = trunc i16 %add to i8176 %shr2.i = ashr i8 %conv1.i, 7177 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i178 call void @use(i8 %shr2.i)179 ret i1 %cmp.not.i180}181 182define i1 @extrause_l(i16 %add) {183; CHECK-LABEL: @extrause_l(184; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 8185; CHECK-NEXT: [[CONV_I:%.*]] = trunc nuw i16 [[SH]] to i8186; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD]], 128187; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], 256188; CHECK-NEXT: call void @use(i8 [[CONV_I]])189; CHECK-NEXT: ret i1 [[CMP_NOT_I]]190;191 %sh = lshr i16 %add, 8192 %conv.i = trunc i16 %sh to i8193 %conv1.i = trunc i16 %add to i8194 %shr2.i = ashr i8 %conv1.i, 7195 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i196 call void @use(i8 %conv.i)197 ret i1 %cmp.not.i198}199 200define i1 @extrause_la(i16 %add) {201; CHECK-LABEL: @extrause_la(202; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 8203; CHECK-NEXT: [[CONV_I:%.*]] = trunc nuw i16 [[SH]] to i8204; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD]] to i8205; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7206; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]]207; CHECK-NEXT: call void @use(i8 [[SHR2_I]])208; CHECK-NEXT: call void @use(i8 [[CONV_I]])209; CHECK-NEXT: ret i1 [[CMP_NOT_I]]210;211 %sh = lshr i16 %add, 8212 %conv.i = trunc i16 %sh to i8213 %conv1.i = trunc i16 %add to i8214 %shr2.i = ashr i8 %conv1.i, 7215 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i216 call void @use(i8 %shr2.i)217 call void @use(i8 %conv.i)218 ret i1 %cmp.not.i219}220