1 ; RUN: opt < %s -loop-unswitch -disable-output
4 target triple = "i686-pc-linux-gnu"
5 %struct.re_pattern_buffer = type { i8*, i32, i32, i32, i8*, i8*, i32, i8 }
7 define fastcc i32 @byte_regex_compile(i8* %pattern, i32 %size, i32 %syntax, %struct.re_pattern_buffer* %bufp) {
9 br i1 false, label %bb147, label %cond_next123
11 cond_next123: ; preds = %entry
14 bb147: ; preds = %entry
15 switch i32 0, label %normal_char [
20 bb1734: ; preds = %bb147
21 br label %bb1855.outer.outer
23 cond_true1831: ; preds = %bb1855.outer
24 br i1 %tmp1837, label %cond_next1844, label %cond_true1840
26 cond_true1840: ; preds = %cond_true1831
29 cond_next1844: ; preds = %cond_true1831
30 br i1 false, label %bb1855.outer, label %cond_true1849
32 cond_true1849: ; preds = %cond_next1844
33 br label %bb1855.outer.outer
35 bb1855.outer.outer: ; preds = %cond_true1849, %bb1734
36 %b.10.ph.ph = phi i8* [ null, %cond_true1849 ], [ null, %bb1734 ] ; <i8*> [#uses=1]
37 br label %bb1855.outer
39 bb1855.outer: ; preds = %bb1855.outer.outer, %cond_next1844
40 %b.10.ph = phi i8* [ null, %cond_next1844 ], [ %b.10.ph.ph, %bb1855.outer.outer ] ; <i8*> [#uses=1]
41 %tmp1837 = icmp eq i8* null, null ; <i1> [#uses=2]
42 br i1 false, label %cond_true1831, label %cond_next1915
44 cond_next1915: ; preds = %cond_next1961, %bb1855.outer
45 store i8* null, i8** null
46 br i1 %tmp1837, label %cond_next1929, label %cond_true1923
48 cond_true1923: ; preds = %cond_next1915
51 cond_next1929: ; preds = %cond_next1915
52 br i1 false, label %cond_next1961, label %cond_next2009
54 cond_next1961: ; preds = %cond_next1929
55 %tmp1992 = getelementptr i8, i8* %b.10.ph, i32 0 ; <i8*> [#uses=0]
56 br label %cond_next1915
58 cond_next2009: ; preds = %cond_next1929
61 bb5700: ; preds = %bb147
64 normal_char: ; preds = %bb147