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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt -passes='loop-mssa(simple-loop-unswitch<nontrivial>,licm)' -verify-memoryssa -S < %s | FileCheck %s3 4; Check that running LICM after SimpleLoopUnswitch does not result in a crash.5 6define i32 @foo(i1 %arg, ptr %arg1) {7; CHECK-LABEL: define i32 @foo(8; CHECK-SAME: i1 [[ARG:%.*]], ptr [[ARG1:%.*]]) {9; CHECK-NEXT: [[START:.*:]]10; CHECK-NEXT: [[ARG_FR:%.*]] = freeze i1 [[ARG]]11; CHECK-NEXT: br i1 [[ARG_FR]], label %[[START_SPLIT_US:.*]], label %[[START_SPLIT:.*]]12; CHECK: [[START_SPLIT_US]]:13; CHECK-NEXT: br label %[[LOOP_US:.*]]14; CHECK: [[LOOP_US]]:15; CHECK-NEXT: br label %[[BB0:.*]]16; CHECK: [[BB0]]:17; CHECK-NEXT: br label %[[BB1:.*]]18; CHECK: [[BB1]]:19; CHECK-NEXT: [[UNSWITCHED_SELECT_US:%.*]] = phi ptr [ [[ARG1]], %[[BB0]] ]20; CHECK-NEXT: [[I3_US:%.*]] = call i32 [[UNSWITCHED_SELECT_US]]()21; CHECK-NEXT: br i1 true, label %[[LOOP_US]], label %[[RET_SPLIT_US:.*]]22; CHECK: [[RET_SPLIT_US]]:23; CHECK-NEXT: [[I3_LCSSA_US:%.*]] = phi i32 [ [[I3_US]], %[[BB1]] ]24; CHECK-NEXT: br label %[[RET:.*]]25; CHECK: [[START_SPLIT]]:26; CHECK-NEXT: br label %[[LOOP:.*]]27; CHECK: [[LOOP]]:28; CHECK-NEXT: br label %[[BB2:.*]]29; CHECK: [[BB2]]:30; CHECK-NEXT: br i1 false, label %[[LOOP]], label %[[RET_SPLIT:.*]]31; CHECK: [[RET_SPLIT]]:32; CHECK-NEXT: [[I3_LE:%.*]] = call i32 @bar()33; CHECK-NEXT: br label %[[RET]]34; CHECK: [[RET]]:35; CHECK-NEXT: [[DOTUS_PHI:%.*]] = phi i32 [ [[I3_LE]], %[[RET_SPLIT]] ], [ [[I3_LCSSA_US]], %[[RET_SPLIT_US]] ]36; CHECK-NEXT: ret i32 [[DOTUS_PHI]]37;38start:39 br label %loop40 41loop: ; preds = %loop, %bb42 %i = select i1 %arg, ptr %arg1, ptr @bar43 %i3 = call i32 %i()44 br i1 %arg, label %loop, label %ret45 46ret: ; preds = %loop47 ret i32 %i348}49 50declare i32 @bar() nounwind willreturn memory(none)51