forked from OSchip/llvm-project
43 lines
1.6 KiB
LLVM
43 lines
1.6 KiB
LLVM
; RUN: opt -loop-unroll -disable-output < %s
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; PR11361
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; This tests for an iterator invalidation issue.
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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-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @func_1() nounwind uwtable {
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entry:
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br label %for.cond8.preheader
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for.cond8.preheader: ; preds = %for.inc15, %entry
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%l_1264.04 = phi i32 [ 0, %entry ], [ %add.i, %for.inc15 ]
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%l_1330.0.03 = phi i80 [ undef, %entry ], [ %ins.lcssa, %for.inc15 ]
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br label %for.body9
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for.body9: ; preds = %for.body9, %for.cond8.preheader
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%l_1330.0.12 = phi i80 [ %l_1330.0.03, %for.cond8.preheader ], [ %ins, %for.body9 ]
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%storemerge1 = phi i32 [ 7, %for.cond8.preheader ], [ %sub, %for.body9 ]
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%tmp = lshr i80 %l_1330.0.12, 8
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%tmp1 = trunc i80 %tmp to i8
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%inc12 = add i8 %tmp1, 1
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%tmp2 = zext i8 %inc12 to i80
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%tmp3 = shl nuw nsw i80 %tmp2, 8
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%mask = and i80 %l_1330.0.12, -65281
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%ins = or i80 %tmp3, %mask
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%sub = add nsw i32 %storemerge1, -1
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%tobool = icmp eq i32 %sub, 0
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br i1 %tobool, label %for.inc15, label %for.body9
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for.inc15: ; preds = %for.body9
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%ins.lcssa = phi i80 [ %ins, %for.body9 ]
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%sext = shl i32 %l_1264.04, 24
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%conv.i = ashr exact i32 %sext, 24
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%add.i = add nsw i32 %conv.i, 1
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%cmp = icmp slt i32 %add.i, 3
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br i1 %cmp, label %for.cond8.preheader, label %for.end16
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for.end16: ; preds = %for.inc15
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ret void
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}
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