1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes="simplifycfg<forward-switch-cond;no-keep-loops>" < %s | FileCheck %s 3 4define i8 @test() { 5; CHECK-LABEL: @test( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: br label [[LOOP2:%.*]] 8; CHECK: loop2: 9; CHECK-NEXT: [[PHI2:%.*]] = phi i8 [ 0, [[ENTRY:%.*]] ], [ [[SPEC_SELECT:%.*]], [[LOOP2]] ] 10; CHECK-NEXT: [[COND:%.*]] = icmp eq i8 [[PHI2]], 0 11; CHECK-NEXT: [[SPEC_SELECT]] = select i1 [[COND]], i8 0, i8 [[PHI2]] 12; CHECK-NEXT: br label [[LOOP2]] 13; 14entry: 15 br label %loop 16 17loop: 18 %phi1 = phi i8 [ 0, %entry ], [ %phi2, %loop2 ] 19 br label %loop2 20 21loop2: 22 %phi2 = phi i8 [ %phi1, %loop ], [ 0, %loop2 ] 23 switch i8 %phi2, label %loop [ 24 i8 0, label %loop2 25 i8 1, label %exit 26 ] 27 28exit: 29 ret i8 0 30} 31