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annotate test/Transforms/IndVarSimplify/loop_evaluate10.ll @ 123:923c9a525fb0

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rename IListTest.cpp
author mir3636
date Thu, 30 Nov 2017 18:21:27 +0900
parents 1172e4bd9c6f
children c2174574ed3a
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1 ; RUN: opt < %s -indvars -S | FileCheck %s
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2 ;
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3 ; This loop has multiple exits, and the value of %b1 depends on which
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4 ; exit is taken. Indvars should correctly compute the exit values.
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5 ;
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6 ; XFAIL: *
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7 ; Indvars does not currently replace loop invariant values unless all
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8 ; loop exits have the same exit value. We could handle some cases,
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9 ; such as this, by making getSCEVAtScope() sensitive to a particular
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10 ; loop exit. See PR11388.
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11
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12 target 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"
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13 target triple = "x86_64-pc-linux-gnu"
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14 %struct..0anon = type <{ i8, [3 x i8] }>
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15
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16 define i32 @main() nounwind {
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17 ; CHECK-LABEL: @main(
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18 ; CHECK: %b.1 = phi i32 [ 2, %bb ], [ 1, %bb2 ]
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19 entry:
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20 br label %bb2
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21
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22 bb2: ; preds = %bb, %entry
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23 %sdata.0 = phi i32 [ 1, %entry ], [ %ins10, %bb ] ; <i32> [#uses=2]
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24 %b.0 = phi i32 [ 0, %entry ], [ %t0, %bb ] ; <i32> [#uses=2]
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25 %tmp6 = trunc i32 %sdata.0 to i8 ; <i8> [#uses=2]
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26 %t2 = and i8 %tmp6, 1 ; <i8> [#uses=1]
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27 %t3 = icmp eq i8 %t2, 0 ; <i1> [#uses=1]
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28 %t4 = xor i8 %tmp6, 1 ; <i8> [#uses=1]
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29 %tmp8 = zext i8 %t4 to i32 ; <i32> [#uses=1]
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30 %mask9 = and i32 %sdata.0, -256 ; <i32> [#uses=1]
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31 %ins10 = or i32 %tmp8, %mask9 ; <i32> [#uses=1]
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32 br i1 %t3, label %bb3, label %bb
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33
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34 bb: ; preds = %bb2
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35 %t0 = add i32 %b.0, 1 ; <i32> [#uses=3]
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36 %t1 = icmp sgt i32 %t0, 100 ; <i1> [#uses=1]
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37 br i1 %t1, label %bb3, label %bb2
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38
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39 bb3: ; preds = %bb, %bb2
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40 %b.1 = phi i32 [ %t0, %bb ], [ %b.0, %bb2 ] ; <i32> [#uses=1]
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41 %t5 = icmp eq i32 %b.1, 1 ; <i1> [#uses=1]
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42 br i1 %t5, label %bb5, label %bb4
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43
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44 bb4: ; preds = %bb3
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45 tail call void @abort() noreturn nounwind
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46 unreachable
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47
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48 bb5: ; preds = %bb3
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49 ret i32 0
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50 }
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51
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52 declare void @abort() noreturn nounwind