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- ; RUN: opt < %s -loop-simplify -S | FileCheck %s
- ; Make sure the preheader exists.
- ; CHECK: sw.bb103:
- ; CHECK: indirectbr {{.*}}label %while.cond112
- ; CHECK: while.cond112:
- ; But the tail is not split.
- ; CHECK: for.body:
- ; CHECK: indirectbr {{.*}}label %while.cond112
- define fastcc void @build_regex_nfa() nounwind uwtable ssp {
- entry:
- indirectbr i8* blockaddress(@build_regex_nfa, %while.cond), [label %while.cond]
- while.cond: ; preds = %if.then439, %entry
- indirectbr i8* blockaddress(@build_regex_nfa, %sw.bb103), [label %do.body785, label %sw.bb103]
- sw.bb103: ; preds = %while.body
- indirectbr i8* blockaddress(@build_regex_nfa, %while.cond112), [label %while.cond112]
- while.cond112: ; preds = %for.body, %for.cond.preheader, %sw.bb103
- %pc.0 = phi i8 [ -1, %sw.bb103 ], [ 0, %for.body ], [ %pc.0, %for.cond.preheader ]
- indirectbr i8* blockaddress(@build_regex_nfa, %Lsetdone), [label %sw.bb118, label %Lsetdone]
- sw.bb118: ; preds = %while.cond112
- indirectbr i8* blockaddress(@build_regex_nfa, %for.cond.preheader), [label %Lerror.loopexit, label %for.cond.preheader]
- for.cond.preheader: ; preds = %sw.bb118
- indirectbr i8* blockaddress(@build_regex_nfa, %for.body), [label %while.cond112, label %for.body]
- for.body: ; preds = %for.body, %for.cond.preheader
- indirectbr i8* blockaddress(@build_regex_nfa, %for.body), [label %while.cond112, label %for.body]
- Lsetdone: ; preds = %while.cond112
- unreachable
- do.body785: ; preds = %while.cond, %while.body
- ret void
- Lerror.loopexit: ; preds = %sw.bb118
- unreachable
- }
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