1 ; RUN: opt -S -basicaa -gvn < %s | FileCheck %s
2 ; RUN: opt -S -basicaa -gvn -basicaa-force-at-least-64b=0 < %s | FileCheck %s
4 target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
5 target triple = "i386-apple-macosx10.6.0"
7 ; The load and store address in the loop body could alias so the load
8 ; can't be hoisted above the store and out of the loop.
10 declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1)
12 define i32 @foo(i32 %x, i32 %z, i32 %n) {
14 %pool = alloca [59 x i32], align 4
15 %tmp = bitcast [59 x i32]* %pool to i8*
16 call void @llvm.memset.p0i8.i32(i8* align 4 nonnull %tmp, i8 0, i32 236, i1 false)
17 %cmp3 = icmp eq i32 %n, 0
18 br i1 %cmp3, label %for.end, label %for.body.lr.ph
20 for.body.lr.ph: ; preds = %entry
22 %and = and i32 %add, 2147483647
23 %sub = add nsw i32 %and, -2137521902
24 %arrayidx = getelementptr inbounds [59 x i32], [59 x i32]* %pool, i32 0, i32 %sub
25 %arrayidx1 = getelementptr inbounds [59 x i32], [59 x i32]* %pool, i32 0, i32 42
28 for.body: ; preds = %for.body.lr.ph, %for.body
29 %i.04 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
30 store i32 %i.04, i32* %arrayidx, align 4
31 %tmp1 = load i32, i32* %arrayidx1, align 4
32 %inc = add nuw i32 %i.04, 1
33 %exitcond = icmp ne i32 %inc, %n
34 br i1 %exitcond, label %for.body, label %for.end.loopexit
36 for.end.loopexit: ; preds = %for.body
37 %lcssa = phi i32 [ %tmp1, %for.body ]
40 for.end: ; preds = %for.end.loopexit, %entry
41 %s = phi i32 [ 0, %entry ], [ %lcssa, %for.end.loopexit ]