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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 22; RUN: opt < %s -loop-reduce -gvn -S | FileCheck %s3 4target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"5 6; LoopStrengthReduce should reuse %mul as the stride.7define void @_Z3fooPfll(ptr nocapture readonly %input, i64 %n, i64 %s) {8; CHECK-LABEL: define void @_Z3fooPfll9; CHECK-SAME: (ptr readonly captures(none) [[INPUT:%.*]], i64 [[N:%.*]], i64 [[S:%.*]]) {10; CHECK-NEXT: entry:11; CHECK-NEXT: [[MUL:%.*]] = shl i64 [[S]], 212; CHECK-NEXT: tail call void @_Z3bazl(i64 [[MUL]])13; CHECK-NEXT: [[CMP_5:%.*]] = icmp sgt i64 [[N]], 014; CHECK-NEXT: br i1 [[CMP_5]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]15; CHECK: for.body.preheader:16; CHECK-NEXT: br label [[FOR_BODY:%.*]]17; CHECK: for.cond.cleanup.loopexit:18; CHECK-NEXT: br label [[FOR_COND_CLEANUP]]19; CHECK: for.cond.cleanup:20; CHECK-NEXT: ret void21; CHECK: for.body:22; CHECK-NEXT: [[LSR_IV:%.*]] = phi ptr [ [[SCEVGEP:%.*]], [[FOR_BODY]] ], [ [[INPUT]], [[FOR_BODY_PREHEADER]] ]23; CHECK-NEXT: [[I_06:%.*]] = phi i64 [ [[ADD:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]24; CHECK-NEXT: [[TMP0:%.*]] = load float, ptr [[LSR_IV]], align 425; CHECK-NEXT: tail call void @_Z3barf(float [[TMP0]])26; CHECK-NEXT: [[ADD]] = add i64 [[I_06]], [[S]]27; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, ptr [[LSR_IV]], i64 [[MUL]]28; CHECK-NEXT: [[CMP:%.*]] = icmp slt i64 [[ADD]], [[N]]29; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]]30;31entry:32 %mul = shl nsw i64 %s, 233 tail call void @_Z3bazl(i64 %mul) #234 %cmp.5 = icmp sgt i64 %n, 035 br i1 %cmp.5, label %for.body.preheader, label %for.cond.cleanup36 37for.body.preheader: ; preds = %entry38 br label %for.body39 40for.cond.cleanup.loopexit: ; preds = %for.body41 br label %for.cond.cleanup42 43for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry44 ret void45 46for.body: ; preds = %for.body.preheader, %for.body47 %i.06 = phi i64 [ %add, %for.body ], [ 0, %for.body.preheader ]48 %arrayidx = getelementptr inbounds float, ptr %input, i64 %i.0649 %0 = load float, ptr %arrayidx, align 450 tail call void @_Z3barf(float %0) #251 %add = add nsw i64 %i.06, %s52 %cmp = icmp slt i64 %add, %n53 br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit54}55 56declare void @_Z3bazl(i64)57 58declare void @_Z3barf(float)59