1 ; REQUIRES: asserts 2 ; RUN: llc -mtriple=x86_64-apple-darwin -march=x86-64 < %s -o /dev/null -stats -info-output-file - | grep "hoisted out of loops" | grep 4 3 4 ; MachineLICM should be able to hoist the symbolic addresses out of 5 ; the inner loops. 6 7 @main.flags = internal global [8193 x i8] zeroinitializer, align 16 ; <[8193 x i8]*> [#uses=3] 8 @.str = private constant [11 x i8] c"Count: %d\0A\00" ; <[11 x i8]*> [#uses=1] 9 10 define i32 @main(i32 %argc, i8** nocapture %argv) nounwind ssp { 11 entry: 12 %cmp = icmp eq i32 %argc, 2 ; <i1> [#uses=1] 13 br i1 %cmp, label %while.cond.preheader, label %bb.nph53 14 15 while.cond.preheader: ; preds = %entry 16 %arrayidx = getelementptr inbounds i8** %argv, i64 1 ; <i8**> [#uses=1] 17 %tmp2 = load i8** %arrayidx ; <i8*> [#uses=1] 18 %call = tail call i32 @atoi(i8* %tmp2) nounwind ; <i32> [#uses=2] 19 %tobool51 = icmp eq i32 %call, 0 ; <i1> [#uses=1] 20 br i1 %tobool51, label %while.end, label %bb.nph53 21 22 while.cond.loopexit: ; preds = %for.inc35 23 %indvar.next77 = add i32 %indvar76, 1 ; <i32> [#uses=2] 24 %exitcond78 = icmp eq i32 %indvar.next77, %NUM.0.ph80 ; <i1> [#uses=1] 25 br i1 %exitcond78, label %while.end, label %bb.nph 26 27 bb.nph53: ; preds = %entry, %while.cond.preheader 28 %NUM.0.ph80 = phi i32 [ %call, %while.cond.preheader ], [ 17000, %entry ] ; <i32> [#uses=1] 29 br label %bb.nph 30 31 bb.nph: ; preds = %while.cond.loopexit, %bb.nph53 32 %indvar76 = phi i32 [ 0, %bb.nph53 ], [ %indvar.next77, %while.cond.loopexit ] ; <i32> [#uses=1] 33 br label %for.body 34 35 for.body: ; preds = %for.body, %bb.nph 36 %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] ; <i64> [#uses=2] 37 %tmp = add i64 %indvar, 2 ; <i64> [#uses=1] 38 %arrayidx10 = getelementptr [8193 x i8]* @main.flags, i64 0, i64 %tmp ; <i8*> [#uses=1] 39 store i8 1, i8* %arrayidx10 40 %indvar.next = add i64 %indvar, 1 ; <i64> [#uses=2] 41 %exitcond = icmp eq i64 %indvar.next, 8191 ; <i1> [#uses=1] 42 br i1 %exitcond, label %for.body15, label %for.body 43 44 for.body15: ; preds = %for.body, %for.inc35 45 %indvar57 = phi i64 [ %indvar.next58, %for.inc35 ], [ 0, %for.body ] ; <i64> [#uses=4] 46 %count.248 = phi i32 [ %count.1, %for.inc35 ], [ 0, %for.body ] ; <i32> [#uses=2] 47 %tmp68 = add i64 %indvar57, 2 ; <i64> [#uses=2] 48 %tmp70 = mul i64 %indvar57, 3 ; <i64> [#uses=1] 49 %tmp71 = add i64 %tmp70, 6 ; <i64> [#uses=1] 50 %tmp73 = shl i64 %indvar57, 1 ; <i64> [#uses=1] 51 %add = add i64 %tmp73, 4 ; <i64> [#uses=2] 52 %arrayidx17 = getelementptr [8193 x i8]* @main.flags, i64 0, i64 %tmp68 ; <i8*> [#uses=1] 53 %tmp18 = load i8* %arrayidx17 ; <i8> [#uses=1] 54 %tobool19 = icmp eq i8 %tmp18, 0 ; <i1> [#uses=1] 55 br i1 %tobool19, label %for.inc35, label %if.then 56 57 if.then: ; preds = %for.body15 58 %cmp2443 = icmp slt i64 %add, 8193 ; <i1> [#uses=1] 59 br i1 %cmp2443, label %for.body25, label %for.end32 60 61 for.body25: ; preds = %if.then, %for.body25 62 %indvar55 = phi i64 [ %indvar.next56, %for.body25 ], [ 0, %if.then ] ; <i64> [#uses=2] 63 %tmp60 = mul i64 %tmp68, %indvar55 ; <i64> [#uses=2] 64 %tmp75 = add i64 %add, %tmp60 ; <i64> [#uses=1] 65 %arrayidx27 = getelementptr [8193 x i8]* @main.flags, i64 0, i64 %tmp75 ; <i8*> [#uses=1] 66 store i8 0, i8* %arrayidx27 67 %add31 = add i64 %tmp71, %tmp60 ; <i64> [#uses=1] 68 %cmp24 = icmp slt i64 %add31, 8193 ; <i1> [#uses=1] 69 %indvar.next56 = add i64 %indvar55, 1 ; <i64> [#uses=1] 70 br i1 %cmp24, label %for.body25, label %for.end32 71 72 for.end32: ; preds = %for.body25, %if.then 73 %inc34 = add nsw i32 %count.248, 1 ; <i32> [#uses=1] 74 br label %for.inc35 75 76 for.inc35: ; preds = %for.body15, %for.end32 77 %count.1 = phi i32 [ %inc34, %for.end32 ], [ %count.248, %for.body15 ] ; <i32> [#uses=2] 78 %indvar.next58 = add i64 %indvar57, 1 ; <i64> [#uses=2] 79 %exitcond67 = icmp eq i64 %indvar.next58, 8191 ; <i1> [#uses=1] 80 br i1 %exitcond67, label %while.cond.loopexit, label %for.body15 81 82 while.end: ; preds = %while.cond.loopexit, %while.cond.preheader 83 %count.0.lcssa = phi i32 [ 0, %while.cond.preheader ], [ %count.1, %while.cond.loopexit ] ; <i32> [#uses=1] 84 %call40 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([11 x i8]* @.str, i64 0, i64 0), i32 %count.0.lcssa) nounwind ; <i32> [#uses=0] 85 ret i32 0 86 } 87 88 declare i32 @atoi(i8* nocapture) nounwind readonly 89 90 declare i32 @printf(i8* nocapture, ...) nounwind 91
