1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=arm64-apple-ios -mcpu=cyclone < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; Do not generate redundant select in early if-converstion pass. 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i32 %a, i32 %b) { 5*9880d681SAndroid Build Coastguard Workerentry: 6*9880d681SAndroid Build Coastguard Worker;CHECK-LABEL: foo: 7*9880d681SAndroid Build Coastguard Worker;CHECK: csinc 8*9880d681SAndroid Build Coastguard Worker;CHECK-NOT: csel 9*9880d681SAndroid Build Coastguard Worker %sub = sub nsw i32 %b, %a 10*9880d681SAndroid Build Coastguard Worker %cmp10 = icmp sgt i32 %a, 0 11*9880d681SAndroid Build Coastguard Worker br i1 %cmp10, label %while.body.lr.ph, label %while.end 12*9880d681SAndroid Build Coastguard Worker 13*9880d681SAndroid Build Coastguard Workerwhile.body.lr.ph: 14*9880d681SAndroid Build Coastguard Worker br label %while.body 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Workerwhile.body: 17*9880d681SAndroid Build Coastguard Worker %j.012 = phi i32 [ %sub, %while.body.lr.ph ], [ %inc, %if.then ], [ %inc, %if.else ] 18*9880d681SAndroid Build Coastguard Worker %i.011 = phi i32 [ %a, %while.body.lr.ph ], [ %inc2, %if.then ], [ %dec, %if.else ] 19*9880d681SAndroid Build Coastguard Worker %cmp1 = icmp slt i32 %i.011, %j.012 20*9880d681SAndroid Build Coastguard Worker br i1 %cmp1, label %while.end, label %while.cond 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerwhile.cond: 23*9880d681SAndroid Build Coastguard Worker %inc = add nsw i32 %j.012, 5 24*9880d681SAndroid Build Coastguard Worker %cmp2 = icmp slt i32 %inc, %b 25*9880d681SAndroid Build Coastguard Worker br i1 %cmp2, label %if.then, label %if.else 26*9880d681SAndroid Build Coastguard Worker 27*9880d681SAndroid Build Coastguard Workerif.then: 28*9880d681SAndroid Build Coastguard Worker %inc2 = add nsw i32 %i.011, 1 29*9880d681SAndroid Build Coastguard Worker br label %while.body 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerif.else: 32*9880d681SAndroid Build Coastguard Worker %dec = add nsw i32 %i.011, -1 33*9880d681SAndroid Build Coastguard Worker br label %while.body 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Workerwhile.end: 36*9880d681SAndroid Build Coastguard Worker %j.0.lcssa = phi i32 [ %j.012, %while.body ], [ %sub, %entry ] 37*9880d681SAndroid Build Coastguard Worker %i.0.lcssa = phi i32 [ %i.011, %while.body ], [ %a, %entry ] 38*9880d681SAndroid Build Coastguard Worker %add = add nsw i32 %j.0.lcssa, %i.0.lcssa 39*9880d681SAndroid Build Coastguard Worker ret i32 %add 40*9880d681SAndroid Build Coastguard Worker} 41*9880d681SAndroid Build Coastguard Worker 42