1*e11354c0SNikita Popov; RUN: opt -simple-loop-unswitch -verify-memoryssa -S < %s | FileCheck %s 2cee313d2SEric Christopher 3cee313d2SEric Christopherdefine void @f(i32 %n, i32* %ptr) { 4cee313d2SEric Christopher; CHECK-LABEL: @f( 5cee313d2SEric Christopherentry: 6cee313d2SEric Christopher br label %loop 7cee313d2SEric Christopher 8cee313d2SEric Christopherloop: 9cee313d2SEric Christopher %iv = phi i32 [ 0, %entry ], [ %iv.inc, %be ] 10cee313d2SEric Christopher %iv.inc = add i32 %iv, 1 11cee313d2SEric Christopher %unswitch_cond_root = icmp ne i32 %iv.inc, 42 12cee313d2SEric Christopher %us.0 = and i1 %unswitch_cond_root, %unswitch_cond_root 13cee313d2SEric Christopher %us.1 = and i1 %us.0, %us.0 14cee313d2SEric Christopher %us.2 = and i1 %us.1, %us.1 15cee313d2SEric Christopher %us.3 = and i1 %us.2, %us.2 16cee313d2SEric Christopher %us.4 = and i1 %us.3, %us.3 17cee313d2SEric Christopher %us.5 = and i1 %us.4, %us.4 18cee313d2SEric Christopher %us.6 = and i1 %us.5, %us.5 19cee313d2SEric Christopher %us.7 = and i1 %us.6, %us.6 20cee313d2SEric Christopher %us.8 = and i1 %us.7, %us.7 21cee313d2SEric Christopher %us.9 = and i1 %us.8, %us.8 22cee313d2SEric Christopher %us.10 = and i1 %us.9, %us.9 23cee313d2SEric Christopher %us.11 = and i1 %us.10, %us.10 24cee313d2SEric Christopher %us.12 = and i1 %us.11, %us.11 25cee313d2SEric Christopher %us.13 = and i1 %us.12, %us.12 26cee313d2SEric Christopher %us.14 = and i1 %us.13, %us.13 27cee313d2SEric Christopher %us.15 = and i1 %us.14, %us.14 28cee313d2SEric Christopher %us.16 = and i1 %us.15, %us.15 29cee313d2SEric Christopher %us.17 = and i1 %us.16, %us.16 30cee313d2SEric Christopher %us.18 = and i1 %us.17, %us.17 31cee313d2SEric Christopher %us.19 = and i1 %us.18, %us.18 32cee313d2SEric Christopher %us.20 = and i1 %us.19, %us.19 33cee313d2SEric Christopher %us.21 = and i1 %us.20, %us.20 34cee313d2SEric Christopher %us.22 = and i1 %us.21, %us.21 35cee313d2SEric Christopher %us.23 = and i1 %us.22, %us.22 36cee313d2SEric Christopher %us.24 = and i1 %us.23, %us.23 37cee313d2SEric Christopher %us.25 = and i1 %us.24, %us.24 38cee313d2SEric Christopher %us.26 = and i1 %us.25, %us.25 39cee313d2SEric Christopher %us.27 = and i1 %us.26, %us.26 40cee313d2SEric Christopher %us.28 = and i1 %us.27, %us.27 41cee313d2SEric Christopher %us.29 = and i1 %us.28, %us.28 42cee313d2SEric Christopher br i1 %us.29, label %leave, label %be 43cee313d2SEric Christopher 44cee313d2SEric Christopherbe: 45cee313d2SEric Christopher store volatile i32 0, i32* %ptr 46cee313d2SEric Christopher %becond = icmp ult i32 %iv.inc, %n 47cee313d2SEric Christopher br i1 %becond, label %leave, label %loop 48cee313d2SEric Christopher 49cee313d2SEric Christopherleave: 50cee313d2SEric Christopher ret void 51cee313d2SEric Christopher} 52