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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"4target triple = "x86_64-unknown-linux-gnu"5 6declare void @ff()7 8define void @test(ptr noalias nocapture %base, i64 %size) #1 {9; CHECK-LABEL: @test(10; CHECK-NEXT: entry:11; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i64 [[SIZE:%.*]], 012; CHECK-NEXT: br i1 [[CMP3]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]13; CHECK: for.body.preheader:14; CHECK-NEXT: br label [[FOR_BODY:%.*]]15; CHECK: for.body:16; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]17; CHECK-NEXT: tail call void @ff()18; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[BASE:%.*]], i64 [[INDVARS_IV]]19; CHECK-NEXT: store i8 0, ptr [[ARRAYIDX]], align 120; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 121; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], [[SIZE]]22; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]]23; CHECK: for.end.loopexit:24; CHECK-NEXT: br label [[FOR_END]]25; CHECK: for.end:26; CHECK-NEXT: ret void27;28entry:29 %cmp3 = icmp eq i64 %size, 030 br i1 %cmp3, label %for.end, label %for.body.preheader31 32for.body.preheader: ; preds = %entry33 br label %for.body34 35for.body: ; preds = %for.body.preheader, %for.body36 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]37 tail call void @ff()38 %arrayidx = getelementptr inbounds i8, ptr %base, i64 %indvars.iv39 store i8 0, ptr %arrayidx, align 140 %indvars.iv.next = add i64 %indvars.iv, 141 %exitcond = icmp ne i64 %indvars.iv.next, %size42 br i1 %exitcond, label %for.body, label %for.end.loopexit43 44for.end.loopexit: ; preds = %for.body45 br label %for.end46 47for.end: ; preds = %for.end.loopexit, %entry48 ret void49}50 51attributes #1 = { uwtable }52