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150
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1 ; RUN: opt < %s -globalopt -S | FileCheck %s
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2 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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3
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4 %struct.foo = type { i32, i32 }
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5 @X = internal global %struct.foo* null
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6 ; CHECK: @X.f0
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7 ; CHECK: @X.f1
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8
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9 define void @bar(i64 %Size) nounwind noinline {
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10 entry:
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11 %mallocsize = mul i64 8, %Size ; <i64> [#uses=1]
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12 ; CHECK: mul i64 %Size, 4
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13 %malloccall = tail call i8* @malloc(i64 %mallocsize) ; <i8*> [#uses=1]
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14 %.sub = bitcast i8* %malloccall to %struct.foo* ; <%struct.foo*> [#uses=1]
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15 store %struct.foo* %.sub, %struct.foo** @X, align 4
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16 ret void
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17 }
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18
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19 declare noalias i8* @malloc(i64)
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20
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21 define i32 @baz() nounwind readonly noinline {
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22 bb1.thread:
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23 %0 = load %struct.foo*, %struct.foo** @X, align 4
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24 br label %bb1
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25
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26 bb1: ; preds = %bb1, %bb1.thread
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27 %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ]
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28 %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ]
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29 %1 = getelementptr %struct.foo, %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0
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30 %2 = load i32, i32* %1, align 4
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31 %3 = add i32 %2, %sum.0.reg2mem.0
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32 %indvar.next = add i32 %i.0.reg2mem.0, 1
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33 %exitcond = icmp eq i32 %indvar.next, 1200
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34 br i1 %exitcond, label %bb2, label %bb1
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35
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36 bb2: ; preds = %bb1
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37 ret i32 %3
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38 }
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39
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40 define void @bam(i64 %Size) nounwind noinline #0 {
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41 entry:
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42 %0 = load %struct.foo*, %struct.foo** @X, align 4
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43 ret void
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44 }
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45
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173
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46 attributes #0 = { null_pointer_is_valid }
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