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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=newgvn -S %s | FileCheck %s3 4declare void @use.i16(ptr)5declare void @use.i32(i32)6 7; Test cases from PR35074, where the simplification dependencies need to be8; tracked for phi-of-ops root instructions.9 10define void @test1(i1 %arg) {11; CHECK-LABEL: @test1(12; CHECK-NEXT: entry:13; CHECK-NEXT: br label [[FOR_COND:%.*]]14; CHECK: for.cond:15; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[Y_0:%.*]], [[FOR_INC6:%.*]] ]16; CHECK-NEXT: [[Y_0]] = phi i32 [ 1, [[ENTRY]] ], [ [[INC7:%.*]], [[FOR_INC6]] ]17; CHECK-NEXT: br i1 %arg, label [[FOR_INC6]], label [[FOR_BODY_LR_PH:%.*]]18; CHECK: for.body.lr.ph:19; CHECK-NEXT: br label [[FOR_BODY4:%.*]]20; CHECK: for.body4:21; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[PHIOFOPS]], [[Y_0]]22; CHECK-NEXT: br i1 [[CMP]], label [[FOR_END:%.*]], label [[FOR_BODY4_1:%.*]]23; CHECK: for.end:24; CHECK-NEXT: ret void25; CHECK: for.inc6:26; CHECK-NEXT: [[INC7]] = add nuw nsw i32 [[Y_0]], 127; CHECK-NEXT: br label [[FOR_COND]]28; CHECK: for.body4.1:29; CHECK-NEXT: [[INC_1:%.*]] = add nuw nsw i32 [[Y_0]], 130; CHECK-NEXT: tail call void @use.i32(i32 [[INC_1]])31; CHECK-NEXT: br label [[FOR_END]]32;33entry:34 br label %for.cond35 36for.cond: ; preds = %for.inc6, %entry37 %y.0 = phi i32 [ 1, %entry ], [ %inc7, %for.inc6 ]38 br i1 %arg, label %for.inc6, label %for.body.lr.ph39 40for.body.lr.ph: ; preds = %for.cond41 %sub = add nsw i32 %y.0, -142 br label %for.body443 44for.body4: ; preds = %for.body.lr.ph45 %cmp = icmp ugt i32 %sub, %y.046 br i1 %cmp, label %for.end, label %for.body4.147 48for.end: ; preds = %for.body4.1, %for.body449 ret void50 51for.inc6: ; preds = %for.cond52 %inc7 = add nuw nsw i32 %y.0, 153 br label %for.cond54 55for.body4.1: ; preds = %for.body456 %inc.1 = add nuw nsw i32 %y.0, 157 tail call void @use.i32(i32 %inc.1)58 br label %for.end59}60 61define void @test2(i1 %c, ptr %ptr, i64 %N) {62; CHECK-LABEL: @test2(63; CHECK-NEXT: entry:64; CHECK-NEXT: br label [[HEADER:%.*]]65; CHECK: header:66; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i64 [ -1, [[ENTRY:%.*]] ], [ [[IV:%.*]], [[LATCH:%.*]] ]67; CHECK-NEXT: [[IV]] = phi i64 [ [[IV_NEXT:%.*]], [[LATCH]] ], [ 0, [[ENTRY]] ]68; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]69; CHECK: if.then:70; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i64 [[IV]], 071; CHECK-NEXT: br i1 [[CMP1]], label [[LATCH]], label [[LOR_RHS:%.*]]72; CHECK: lor.rhs:73; CHECK-NEXT: [[IV_ADD_1:%.*]] = add i64 [[IV]], 174; CHECK-NEXT: [[IDX_1:%.*]] = getelementptr inbounds i16, ptr [[PTR:%.*]], i64 [[IV_ADD_1]]75; CHECK-NEXT: call void @use.i16(ptr [[IDX_1]])76; CHECK-NEXT: ret void77; CHECK: if.else:78; CHECK-NEXT: [[IDX_2:%.*]] = getelementptr inbounds i16, ptr [[PTR]], i64 [[PHIOFOPS]]79; CHECK-NEXT: call void @use.i16(ptr [[IDX_2]])80; CHECK-NEXT: br label [[LATCH]]81; CHECK: latch:82; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 183; CHECK-NEXT: [[EC:%.*]] = icmp ugt i64 [[IV_NEXT]], [[N:%.*]]84; CHECK-NEXT: br i1 [[EC]], label [[HEADER]], label [[EXIT:%.*]]85; CHECK: exit:86; CHECK-NEXT: ret void87;88entry:89 br label %header90 91header: ; preds = %for.inc, %entry92 %iv = phi i64 [ %iv.next, %latch ], [ 0, %entry ]93 br i1 %c, label %if.then, label %if.else94 95if.then:96 %cmp1 = icmp eq i64 %iv, 097 br i1 %cmp1, label %latch, label %lor.rhs98 99lor.rhs: ; preds = %if.then100 %iv.add.1 = add i64 %iv, 1101 %idx.1 = getelementptr inbounds i16, ptr %ptr, i64 %iv.add.1102 call void @use.i16(ptr %idx.1)103 ret void104 105if.else:106 %iv.sub.1 = add i64 %iv, -1107 %idx.2 = getelementptr inbounds i16, ptr %ptr, i64 %iv.sub.1108 call void @use.i16(ptr %idx.2)109 br label %latch110 111latch:112 %iv.next = add i64 %iv, 1113 %ec = icmp ugt i64 %iv.next, %N114 br i1 %ec, label %header, label %exit115 116exit:117 ret void118}119 120define void @pr49873_cmp_simplification_dependency(ptr %ptr, i1 %c.0) {121; CHECK-LABEL: @pr49873_cmp_simplification_dependency(122; CHECK-NEXT: entry:123; CHECK-NEXT: br label [[LOOP_1:%.*]]124; CHECK: loop.1:125; CHECK-NEXT: br i1 [[C_0:%.*]], label [[LOOP_1_LATCH:%.*]], label [[LOOP_2:%.*]]126; CHECK: loop.2:127; CHECK-NEXT: [[I130:%.*]] = phi i32 [ [[I132:%.*]], [[LOOP_2]] ], [ 0, [[LOOP_1]] ]128; CHECK-NEXT: [[I132]] = add nuw i32 [[I130]], 1129; CHECK-NEXT: [[I133:%.*]] = load i32, ptr [[PTR:%.*]], align 4130; CHECK-NEXT: [[C_1:%.*]] = icmp ult i32 [[I132]], [[I133]]131; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_2]], label [[LOOP_2_EXIT:%.*]]132; CHECK: loop.2.exit:133; CHECK-NEXT: br label [[LOOP_1_LATCH]]134; CHECK: loop.1.latch:135; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i32 [ 0, [[LOOP_1]] ], [ [[I133]], [[LOOP_2_EXIT]] ]136; CHECK-NEXT: [[C_2:%.*]] = icmp ult i32 1, [[DOTLCSSA]]137; CHECK-NEXT: br i1 [[C_2]], label [[LOOP_1]], label [[EXIT:%.*]]138; CHECK: exit:139; CHECK-NEXT: ret void140;141entry:142 br label %loop.1143 144loop.1:145 %i65 = add nuw i32 0, 1146 br i1 %c.0, label %loop.1.latch, label %loop.2147 148loop.2:149 %i130 = phi i32 [ %i132, %loop.2 ], [ 0, %loop.1 ]150 %i132 = add nuw i32 %i130, 1151 %i133 = load i32, ptr %ptr, align 4152 %c.1 = icmp ult i32 %i132, %i133153 br i1 %c.1, label %loop.2, label %loop.2.exit154 155loop.2.exit:156 br label %loop.1.latch157 158loop.1.latch: ; preds = %loop.2.exit, %loop.1159 %.lcssa = phi i32 [ 0, %loop.1 ], [ %i133, %loop.2.exit ]160 %c.2 = icmp ult i32 %i65, %.lcssa161 br i1 %c.2, label %loop.1, label %exit162 163exit:164 ret void165}166