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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes='loop-mssa(simple-loop-unswitch<nontrivial>,loop-reduce,loop-simplifycfg)' -verify-memoryssa -S %s | FileCheck %s3 4; Test case for PR47557.5 6; REQUIRES: x86-registered-target7 8target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"9target triple = "x86_64-unknown-linux-gnu"10 11@a = external global i32, align 412@c = external global [1 x i32], align 413 14define ptr @test() {15; CHECK-LABEL: @test(16; CHECK-NEXT: entry:17; CHECK-NEXT: switch i32 0, label [[ENTRY_SPLIT:%.*]] [18; CHECK-NEXT: i32 1, label [[FOR_BODY3SPLIT:%.*]]19; CHECK-NEXT: i32 2, label [[FOR_COND2_2_FOR_BODY3_CRIT_EDGE:%.*]]20; CHECK-NEXT: ]21; CHECK: entry.split:22; CHECK-NEXT: br label [[FOR_COND:%.*]]23; CHECK: for.cond:24; CHECK-NEXT: [[STOREMERGE:%.*]] = phi i64 [ 0, [[ENTRY_SPLIT]] ], [ [[INC7:%.*]], [[FOR_COND]] ]25; CHECK-NEXT: [[INC7]] = add nsw i64 [[STOREMERGE]], 126; CHECK-NEXT: br label [[FOR_COND]]27; CHECK: for.body3split:28; CHECK-NEXT: br label [[FOR_BODY3:%.*]]29; CHECK: for.cond2.2.for.body3_crit_edge:30; CHECK-NEXT: br label [[FOR_BODY3]]31; CHECK: for.body3:32; CHECK-NEXT: [[STOREMERGE_LCSSA:%.*]] = phi i64 [ poison, [[FOR_COND2_2_FOR_BODY3_CRIT_EDGE]] ], [ poison, [[FOR_BODY3SPLIT]] ]33; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [1 x i32], ptr @c, i64 0, i64 [[STOREMERGE_LCSSA]]34; CHECK-NEXT: ret ptr [[ARRAYIDX]]35;36entry: ; preds = %entry37 br label %for.cond38 39for.cond: ; preds = %cleanup, %entry40 %storemerge = phi i64 [ 0, %entry ], [ %inc7, %cleanup ]41 br label %for.cond2.142 43for.body3: ; preds = %for.cond2.2, %for.cond2.144 %arrayidx = getelementptr inbounds [1 x i32], ptr @c, i64 0, i64 %storemerge45 ret ptr %arrayidx46 47cleanup: ; preds = %for.end5, %if.then48 %inc7 = add nsw i64 %storemerge, 149 br label %for.cond50 51for.cond2.1: ; preds = %for.cond52 br i1 true, label %for.inc.1, label %for.body353 54for.inc.1: ; preds = %for.end.155 br i1 false, label %for.body.2, label %cleanup56 57for.body.2: ; preds = %for.inc.158 store i32 0, ptr @a, align 459 br label %for.cond2.260 61for.cond2.2: ; preds = %for.body.262 br i1 true, label %cleanup, label %for.body363}64