forked from OSchip/llvm-project
42 lines
1.8 KiB
LLVM
42 lines
1.8 KiB
LLVM
|
; 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
|
||
|
|
}
|