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5ce6e32359
This change is to fix the problem discussed in http://lists.llvm.org/pipermail/llvm-dev/2016-February/095446.html. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261052 91177308-0d34-0410-b5e6-96231b3b80d8
52 lines
2.0 KiB
LLVM
52 lines
2.0 KiB
LLVM
; RUN: opt < %s -loop-deletion -licm -loop-idiom -disable-output
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; Check no assertion when loop-idiom deletes the MemSet already analyzed by licm
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define void @set_array() {
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br i1 false, label %bb3.preheader.lr.ph, label %bb9
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bb3.preheader.lr.ph: ; preds = %0
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br label %bb3.preheader
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bb4: ; preds = %bb4.lr.ph, %bb7
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%j.3.06 = phi i8 [ %j.3.17, %bb4.lr.ph ], [ %_tmp13, %bb7 ]
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br label %bb6
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bb6: ; preds = %bb4, %bb6
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%k.4.04 = phi i8 [ 0, %bb4 ], [ %_tmp9, %bb6 ]
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%_tmp31 = sext i8 %j.3.06 to i64
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%_tmp4 = mul i64 %_tmp31, 10
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%_tmp5 = getelementptr i8, i8* undef, i64 %_tmp4
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%_tmp7 = getelementptr i8, i8* %_tmp5, i8 %k.4.04
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store i8 42, i8* %_tmp7
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%_tmp9 = add i8 %k.4.04, 1
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%_tmp11 = icmp slt i8 %_tmp9, 10
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br i1 %_tmp11, label %bb6, label %bb7
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bb7: ; preds = %bb6
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%_tmp13 = add i8 %j.3.06, 1
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%_tmp15 = icmp slt i8 %_tmp13, 2
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br i1 %_tmp15, label %bb4, label %bb3.bb1.loopexit_crit_edge
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bb3.bb1.loopexit_crit_edge: ; preds = %bb7
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%split = phi i8 [ %_tmp13, %bb7 ]
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br label %bb1.loopexit
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bb1.loopexit: ; preds = %bb3.bb1.loopexit_crit_edge, %bb3.preheader
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%j.3.0.lcssa = phi i8 [ %split, %bb3.bb1.loopexit_crit_edge ], [ %j.3.17, %bb3.preheader ]
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br i1 false, label %bb3.preheader, label %bb1.bb9_crit_edge
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bb3.preheader: ; preds = %bb3.preheader.lr.ph, %bb1.loopexit
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%j.3.17 = phi i8 [ undef, %bb3.preheader.lr.ph ], [ %j.3.0.lcssa, %bb1.loopexit ]
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%_tmp155 = icmp slt i8 %j.3.17, 2
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br i1 %_tmp155, label %bb4.lr.ph, label %bb1.loopexit
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bb4.lr.ph: ; preds = %bb3.preheader
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br label %bb4
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bb1.bb9_crit_edge: ; preds = %bb1.loopexit
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br label %bb9
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bb9: ; preds = %bb1.bb9_crit_edge, %0
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ret void
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}
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