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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes 'loop-reduce' -scalar-evolution-max-arith-depth=2 -S < %s | FileCheck --check-prefixes=DEFAULT %s3; RUN: opt -loop-reduce -scalar-evolution-max-arith-depth=2 -S < %s | FileCheck --check-prefixes=LIMIT %s4 5; This test should just compile cleanly without assertions.6 7target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"8 9define void @test(i32 %A, i32 %B, i32 %C) {10; DEFAULT-LABEL: @test(11; DEFAULT-NEXT: entry:12; DEFAULT-NEXT: [[TMP0:%.*]] = mul i32 [[C:%.*]], -313; DEFAULT-NEXT: br label [[OUTER_LOOP:%.*]]14; DEFAULT: outer_loop:15; DEFAULT-NEXT: [[PHI2:%.*]] = phi i32 [ [[A:%.*]], [[ENTRY:%.*]] ], [ 204, [[OUTER_TAIL:%.*]] ]16; DEFAULT-NEXT: [[PHI3:%.*]] = phi i32 [ [[A]], [[ENTRY]] ], [ 243, [[OUTER_TAIL]] ]17; DEFAULT-NEXT: [[PHI4:%.*]] = phi i32 [ [[B:%.*]], [[ENTRY]] ], [ [[I35:%.*]], [[OUTER_TAIL]] ]18; DEFAULT-NEXT: br label [[GUARD:%.*]]19; DEFAULT: guard:20; DEFAULT-NEXT: [[LCMP_MOD:%.*]] = icmp eq i32 [[C]], 021; DEFAULT-NEXT: br i1 [[LCMP_MOD]], label [[OUTER_TAIL]], label [[PREHEADER:%.*]]22; DEFAULT: preheader:23; DEFAULT-NEXT: [[I15:%.*]] = shl i32 [[B]], 124; DEFAULT-NEXT: [[TMP1:%.*]] = mul i32 [[PHI2]], -125; DEFAULT-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], -126; DEFAULT-NEXT: [[TMP3:%.*]] = sub i32 [[PHI4]], [[TMP2]]27; DEFAULT-NEXT: [[TMP4:%.*]] = add i32 [[B]], [[PHI4]]28; DEFAULT-NEXT: [[TMP5:%.*]] = sub i32 [[TMP4]], [[TMP2]]29; DEFAULT-NEXT: [[TMP6:%.*]] = sub i32 14, [[TMP5]]30; DEFAULT-NEXT: [[TMP7:%.*]] = add i32 [[TMP0]], [[PHI2]]31; DEFAULT-NEXT: br label [[INNER_LOOP:%.*]]32; DEFAULT: inner_loop:33; DEFAULT-NEXT: [[LSR_IV3:%.*]] = phi i32 [ [[LSR_IV_NEXT4:%.*]], [[INNER_LOOP]] ], [ [[TMP6]], [[PREHEADER]] ]34; DEFAULT-NEXT: [[LSR_IV1:%.*]] = phi i32 [ [[LSR_IV_NEXT2:%.*]], [[INNER_LOOP]] ], [ [[TMP5]], [[PREHEADER]] ]35; DEFAULT-NEXT: [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[INNER_LOOP]] ], [ [[TMP3]], [[PREHEADER]] ]36; DEFAULT-NEXT: [[PHI5:%.*]] = phi i32 [ [[PHI3]], [[PREHEADER]] ], [ [[I30:%.*]], [[INNER_LOOP]] ]37; DEFAULT-NEXT: [[PHI6:%.*]] = phi i32 [ [[PHI2]], [[PREHEADER]] ], [ [[I33:%.*]], [[INNER_LOOP]] ]38; DEFAULT-NEXT: [[ITER:%.*]] = phi i32 [ [[C]], [[PREHEADER]] ], [ [[ITER_SUB:%.*]], [[INNER_LOOP]] ]39; DEFAULT-NEXT: [[I17:%.*]] = sub i32 [[PHI4]], [[PHI6]]40; DEFAULT-NEXT: [[I18:%.*]] = sub i32 14, [[PHI5]]41; DEFAULT-NEXT: [[I19:%.*]] = mul i32 [[I18]], [[C]]42; DEFAULT-NEXT: [[FACTOR_PROL:%.*]] = shl i32 [[PHI5]], 143; DEFAULT-NEXT: [[TMP8:%.*]] = add i32 [[LSR_IV1]], [[I19]]44; DEFAULT-NEXT: [[TMP9:%.*]] = add i32 [[TMP8]], [[FACTOR_PROL]]45; DEFAULT-NEXT: [[TMP10:%.*]] = shl i32 [[TMP9]], 146; DEFAULT-NEXT: [[TMP11:%.*]] = add i32 [[LSR_IV]], [[TMP10]]47; DEFAULT-NEXT: [[TMP12:%.*]] = sub i32 [[LSR_IV3]], [[I19]]48; DEFAULT-NEXT: [[TMP13:%.*]] = sub i32 [[TMP12]], [[FACTOR_PROL]]49; DEFAULT-NEXT: [[TMP14:%.*]] = mul i32 [[C]], [[TMP13]]50; DEFAULT-NEXT: [[TMP15:%.*]] = add i32 [[LSR_IV1]], [[I19]]51; DEFAULT-NEXT: [[TMP16:%.*]] = add i32 [[TMP15]], [[FACTOR_PROL]]52; DEFAULT-NEXT: [[TMP17:%.*]] = shl i32 [[TMP16]], 153; DEFAULT-NEXT: [[TMP18:%.*]] = add i32 [[TMP14]], [[TMP17]]54; DEFAULT-NEXT: [[TMP19:%.*]] = add i32 [[LSR_IV]], [[TMP18]]55; DEFAULT-NEXT: [[I29:%.*]] = mul i32 [[TMP11]], [[C]]56; DEFAULT-NEXT: [[FACTOR_2_PROL:%.*]] = shl i32 [[TMP19]], 157; DEFAULT-NEXT: [[I30]] = add i32 [[I17]], [[FACTOR_2_PROL]]58; DEFAULT-NEXT: [[I33]] = add i32 [[PHI6]], -359; DEFAULT-NEXT: [[ITER_SUB]] = add i32 [[ITER]], -160; DEFAULT-NEXT: [[LSR_IV_NEXT]] = add i32 [[LSR_IV]], 361; DEFAULT-NEXT: [[LSR_IV_NEXT2]] = add i32 [[LSR_IV1]], 362; DEFAULT-NEXT: [[LSR_IV_NEXT4]] = add i32 [[LSR_IV3]], -363; DEFAULT-NEXT: [[ITER_CMP:%.*]] = icmp eq i32 [[ITER_SUB]], 064; DEFAULT-NEXT: br i1 [[ITER_CMP]], label [[OUTER_TAIL_LOOPEXIT:%.*]], label [[INNER_LOOP]]65; DEFAULT: outer_tail.loopexit:66; DEFAULT-NEXT: br label [[OUTER_TAIL]]67; DEFAULT: outer_tail:68; DEFAULT-NEXT: [[PHI7:%.*]] = phi i32 [ [[PHI2]], [[GUARD]] ], [ [[TMP7]], [[OUTER_TAIL_LOOPEXIT]] ]69; DEFAULT-NEXT: [[I35]] = sub i32 [[A]], [[PHI7]]70; DEFAULT-NEXT: [[CMP:%.*]] = icmp sgt i32 [[I35]], 987671; DEFAULT-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[OUTER_LOOP]]72; DEFAULT: exit:73; DEFAULT-NEXT: ret void74;75; LIMIT-LABEL: @test(76; LIMIT-NEXT: entry:77; LIMIT-NEXT: [[TMP0:%.*]] = mul i32 [[C:%.*]], -378; LIMIT-NEXT: br label [[OUTER_LOOP:%.*]]79; LIMIT: outer_loop:80; LIMIT-NEXT: [[PHI2:%.*]] = phi i32 [ [[A:%.*]], [[ENTRY:%.*]] ], [ 204, [[OUTER_TAIL:%.*]] ]81; LIMIT-NEXT: [[PHI3:%.*]] = phi i32 [ [[A]], [[ENTRY]] ], [ 243, [[OUTER_TAIL]] ]82; LIMIT-NEXT: [[PHI4:%.*]] = phi i32 [ [[B:%.*]], [[ENTRY]] ], [ [[I35:%.*]], [[OUTER_TAIL]] ]83; LIMIT-NEXT: br label [[GUARD:%.*]]84; LIMIT: guard:85; LIMIT-NEXT: [[LCMP_MOD:%.*]] = icmp eq i32 [[C]], 086; LIMIT-NEXT: br i1 [[LCMP_MOD]], label [[OUTER_TAIL]], label [[PREHEADER:%.*]]87; LIMIT: preheader:88; LIMIT-NEXT: [[I15:%.*]] = shl i32 [[B]], 189; LIMIT-NEXT: [[TMP1:%.*]] = mul i32 [[PHI2]], -190; LIMIT-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], -191; LIMIT-NEXT: [[TMP3:%.*]] = sub i32 [[PHI4]], [[TMP2]]92; LIMIT-NEXT: [[TMP4:%.*]] = add i32 [[B]], [[PHI4]]93; LIMIT-NEXT: [[TMP5:%.*]] = sub i32 [[TMP4]], [[TMP2]]94; LIMIT-NEXT: [[TMP6:%.*]] = sub i32 14, [[TMP5]]95; LIMIT-NEXT: [[TMP7:%.*]] = add i32 [[TMP0]], [[PHI2]]96; LIMIT-NEXT: br label [[INNER_LOOP:%.*]]97; LIMIT: inner_loop:98; LIMIT-NEXT: [[LSR_IV3:%.*]] = phi i32 [ [[LSR_IV_NEXT4:%.*]], [[INNER_LOOP]] ], [ [[TMP6]], [[PREHEADER]] ]99; LIMIT-NEXT: [[LSR_IV1:%.*]] = phi i32 [ [[LSR_IV_NEXT2:%.*]], [[INNER_LOOP]] ], [ [[TMP5]], [[PREHEADER]] ]100; LIMIT-NEXT: [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[INNER_LOOP]] ], [ [[TMP3]], [[PREHEADER]] ]101; LIMIT-NEXT: [[PHI5:%.*]] = phi i32 [ [[PHI3]], [[PREHEADER]] ], [ [[I30:%.*]], [[INNER_LOOP]] ]102; LIMIT-NEXT: [[PHI6:%.*]] = phi i32 [ [[PHI2]], [[PREHEADER]] ], [ [[I33:%.*]], [[INNER_LOOP]] ]103; LIMIT-NEXT: [[ITER:%.*]] = phi i32 [ [[C]], [[PREHEADER]] ], [ [[ITER_SUB:%.*]], [[INNER_LOOP]] ]104; LIMIT-NEXT: [[I17:%.*]] = sub i32 [[PHI4]], [[PHI6]]105; LIMIT-NEXT: [[I18:%.*]] = sub i32 14, [[PHI5]]106; LIMIT-NEXT: [[I19:%.*]] = mul i32 [[I18]], [[C]]107; LIMIT-NEXT: [[FACTOR_PROL:%.*]] = shl i32 [[PHI5]], 1108; LIMIT-NEXT: [[TMP8:%.*]] = add i32 [[LSR_IV1]], [[I19]]109; LIMIT-NEXT: [[TMP9:%.*]] = add i32 [[TMP8]], [[FACTOR_PROL]]110; LIMIT-NEXT: [[TMP10:%.*]] = shl i32 [[TMP9]], 1111; LIMIT-NEXT: [[TMP11:%.*]] = add i32 [[LSR_IV]], [[TMP10]]112; LIMIT-NEXT: [[TMP12:%.*]] = sub i32 [[LSR_IV3]], [[I19]]113; LIMIT-NEXT: [[TMP13:%.*]] = sub i32 [[TMP12]], [[FACTOR_PROL]]114; LIMIT-NEXT: [[TMP14:%.*]] = mul i32 [[C]], [[TMP13]]115; LIMIT-NEXT: [[TMP15:%.*]] = add i32 [[LSR_IV1]], [[I19]]116; LIMIT-NEXT: [[TMP16:%.*]] = add i32 [[TMP15]], [[FACTOR_PROL]]117; LIMIT-NEXT: [[TMP17:%.*]] = shl i32 [[TMP16]], 1118; LIMIT-NEXT: [[TMP18:%.*]] = add i32 [[TMP14]], [[TMP17]]119; LIMIT-NEXT: [[TMP19:%.*]] = add i32 [[LSR_IV]], [[TMP18]]120; LIMIT-NEXT: [[I29:%.*]] = mul i32 [[TMP11]], [[C]]121; LIMIT-NEXT: [[FACTOR_2_PROL:%.*]] = shl i32 [[TMP19]], 1122; LIMIT-NEXT: [[I30]] = add i32 [[I17]], [[FACTOR_2_PROL]]123; LIMIT-NEXT: [[I33]] = add i32 [[PHI6]], -3124; LIMIT-NEXT: [[ITER_SUB]] = add i32 [[ITER]], -1125; LIMIT-NEXT: [[LSR_IV_NEXT]] = add i32 [[LSR_IV]], 3126; LIMIT-NEXT: [[LSR_IV_NEXT2]] = add i32 [[LSR_IV1]], 3127; LIMIT-NEXT: [[LSR_IV_NEXT4]] = add i32 [[LSR_IV3]], -3128; LIMIT-NEXT: [[ITER_CMP:%.*]] = icmp eq i32 [[ITER_SUB]], 0129; LIMIT-NEXT: br i1 [[ITER_CMP]], label [[OUTER_TAIL_LOOPEXIT:%.*]], label [[INNER_LOOP]]130; LIMIT: outer_tail.loopexit:131; LIMIT-NEXT: br label [[OUTER_TAIL]]132; LIMIT: outer_tail:133; LIMIT-NEXT: [[PHI7:%.*]] = phi i32 [ [[PHI2]], [[GUARD]] ], [ [[TMP7]], [[OUTER_TAIL_LOOPEXIT]] ]134; LIMIT-NEXT: [[I35]] = sub i32 [[A]], [[PHI7]]135; LIMIT-NEXT: [[CMP:%.*]] = icmp sgt i32 [[I35]], 9876136; LIMIT-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[OUTER_LOOP]]137; LIMIT: exit:138; LIMIT-NEXT: ret void139;140entry:141 br label %outer_loop142 143outer_loop:144 %phi2 = phi i32 [ %A, %entry ], [ 204, %outer_tail ]145 %phi3 = phi i32 [ %A, %entry ], [ 243, %outer_tail ]146 %phi4 = phi i32 [ %B, %entry ], [ %i35, %outer_tail ]147 br label %guard148 149guard:150 %lcmp.mod = icmp eq i32 %C, 0151 br i1 %lcmp.mod, label %outer_tail, label %preheader152 153preheader:154 %i15 = shl i32 %B, 1155 br label %inner_loop156 157inner_loop:158 %phi5 = phi i32 [ %phi3, %preheader ], [ %i30, %inner_loop ]159 %phi6 = phi i32 [ %phi2, %preheader ], [ %i33, %inner_loop ]160 %iter = phi i32 [ %C, %preheader ], [ %iter.sub, %inner_loop ]161 %i17 = sub i32 %phi4, %phi6162 %i18 = sub i32 14, %phi5163 %i19 = mul i32 %i18, %C164 %factor.prol = shl i32 %phi5, 1165 %i20 = add i32 %i17, %factor.prol166 %i21 = add i32 %i20, %B167 %i22 = add i32 %i21, %i19168 %i23 = sub i32 14, %i22169 %i24 = mul i32 %i23, %C170 %factor.1.prol = shl i32 %i22, 1171 %i25 = add i32 %i17, %factor.1.prol172 %i27 = add i32 %i25, %i24173 %i29 = mul i32 %i25, %C174 %factor.2.prol = shl i32 %i27, 1175 %i30 = add i32 %i17, %factor.2.prol176 %i33 = add nsw i32 %phi6, -3177 %iter.sub = add i32 %iter, -1178 %iter.cmp = icmp eq i32 %iter.sub, 0179 br i1 %iter.cmp, label %outer_tail, label %inner_loop180 181outer_tail:182 %phi7 = phi i32 [ %phi2, %guard ], [ %i33, %inner_loop ]183 %i35 = sub i32 %A, %phi7184 %cmp = icmp sgt i32 %i35, 9876185 br i1 %cmp, label %exit, label %outer_loop186 187exit:188 ret void189 190}191