1; RUN: llc < %s -verify-machineinstrs -enable-misched -verify-misched 2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 3target triple = "x86_64-apple-macosx10" 4 5; This function contains a cmp instruction with two users. 6; Hoisting the last use requires trimming the EFLAGS live range to the second. 7define void @rdar13353090(i8* %plane, i64 %_x1, i64 %_x2) { 8entry: 9 %cmp = icmp ult i64 %_x1, %_x2 10 %cond = select i1 %cmp, i64 %_x1, i64 %_x2 11 %cond10 = select i1 %cmp, i64 %_x2, i64 %_x1 12 %0 = load i64, i64* null, align 8 13 %cmp16 = icmp ult i64 %cond, %0 14 %cmp23 = icmp ugt i64 %cond10, 0 15 br i1 %cmp16, label %land.lhs.true21, label %return 16 17land.lhs.true21: ; preds = %entry 18 %sub = add i64 %0, -1 19 br i1 %cmp23, label %if.then24, label %return 20 21if.then24: ; preds = %land.lhs.true21 22 %cmp16.i = icmp ult i64 %cond, %sub 23 %cond20.i = select i1 %cmp16.i, i64 %cond, i64 %sub 24 %add21.i = add i64 0, %cond20.i 25 br label %for.body34.i 26 27for.body34.i: ; preds = %for.inc39.i, %if.then24 28 %index.178.i = phi i64 [ %add21.i, %if.then24 ], [ %inc41.i, %for.inc39.i ] 29 %arrayidx35.i = getelementptr inbounds i8, i8* %plane, i64 %index.178.i 30 %1 = load i8, i8* %arrayidx35.i, align 1 31 %tobool36.i = icmp eq i8 %1, 0 32 br i1 %tobool36.i, label %for.inc39.i, label %return 33 34for.inc39.i: ; preds = %for.body34.i 35 %inc41.i = add i64 %index.178.i, 1 36 br i1 undef, label %return, label %for.body34.i 37 38return: ; preds = %for.inc39.i, %for.body34.i, %land.lhs.true21, %entry 39 ret void 40} 41